RTX 4080 Vs RX 6900 XT: Which Is Better? [2023]

The GeForce RTX™ 4080 is the most recent graphics card from NVIDIA, while AMD’s RX 6900 XT GPU is a slightly older model. In Nvidia RTX 4080 vs. AMD RX 6900 XT, we will determine which GPU features improved performance and specs.

The cutting-edge Nvidia GeForce RTX 4080 features excellent 4nm AD-103 chip technology and the most recent Ada Lovelace architecture. On the other hand, the RX 6900 XT with AMD RDNA™ 2 architecture is a starred variant of the Radeon™ RX 6000 series.

This guide will tell you about the two graphics cards’ overall specifications and gaming capabilities. We will uncover the elements that assist you in determining which of the two graphics cards is better. Let’s begin the guide by going through their comprehensive specifications. Also, make sure to read our RTX 4080 vs RTX 3080 battle to find out whether it is worth upgrading from the 30 series or not. 

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Key Takeaways

• The Nvidia GeForce RTX 4080 has faster baseline and turbo clocks than the AMD RX 6900 XT.
• The RTX 4080’s “AD-103” chip and “Ada Lovelace” architecture are more modern and intelligent.
• The upgraded GDDR6X memory of RTX 4080 has greater speed and bandwidth than the GDDR6 memory of AMD RX 6900 XT.
• The RTX 4080 performs gaming quite better than the RX 6900 XT.

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AMD RX 6900 XT Specifications

About GPU

• Architecture: AMD RDNA™ 2
• Design Chip: Navi 21
• Manufacturing Technology: 7 nm at TSMC 
• No. of Compute Units: 80
• Number of Stream Processors: 5120
• Number of Raster Operations Pipelines (ROPs): 128
• Ray Accelerators: 80
• Texture Units: 320
• Base Clock: 1825 MHz
• Game Frequency: 2015 MHz
• Boost Frequency: Up to 2250 MHz
• Peak Pixel Fill-Rate: Up to 288 GP/s
• Peak Texture Fill-Rate: Up to 720 GT/s
• H265/HEVC Decode
• H265/HEVC Encode
• Peak Half Precision Compute Performance: 46.08 TFLOPs
• Peak Single Precision Compute Performance: 23.04 TFLOPs
• Transistor Count: 26.8 billion
• Die Size: 520 mm²
• Maximum Junction Temperature: Up to 110 °C
• Graphics Card Power: 300 W
• Required PSU: 850 W
• HDMI™ 4K Support
• 4K H264 Decode
• 4K H264 Encode
• AV1 Decode
• DisplayPort: 1.4a
• HDMI™: HDMI™ 2.1 VRR and FRL
• USB Type-C: Yes

GPU Memory

• Memory Type: GDDR6
• Total Memory: 16 GB
• Memory Interface: 256-bit
• L1 Cache: 128 KB per Array
• L2 Cache: 4 MB
• Infinity Cache: 128 MB
• Memory Speed: 16 Gbps
• Memory Bandwidth: Up to 512 GB/s

Card Dimensions

• Length: 267 mm
• Width: 120 mm
• Slots: 3-Slot

Some Important Supported Technologies

• AMD Software: Adrenalin Edition
• AMD FidelityFX™ Super Resolution
• AMD Link
• AMD Noise Suppression
• AMD Radeon™ Super Resolution
• AMD Smart Access Memory
• VSR (4K)
• AMD Privacy View
• AMD Radeon™ Boost
• AMD Radeon™ Anti-Lag
• AMD Radeon™ Image Sharpening
• AMD Enhanced Sync Technology
• AMD FreeSync™ Technology
• AMD Radeon™ Chill
• TrueAudio Next
• The Vulkan® API

NVIDIA RTX 4080 Specifications

About GPU

• Architecture: Ada Lovelace
• Design Chip: AD – 103
• Manufacturing Technology: 4 nm at TSMC 
• NVIDIA CUDA® Cores: 9728
• CUDA Capability: 8.9
• Tensor cores: 304
• Ray Tracing cores: 76
• ROPs: 112
• Number of Transistors: 45.9 billion
• Base clock: 2.21 GHz
• Boost clock: 2.51 GHz
• Die Size: 378.6 mm²
• NVIDIA DLSS: 3
• Maximum GPU Temperature: 90 °C
• Graphics Card Power: 320 W
• Required System Power: 750 W
• NVIDIA Encoder ( NC): 2x 8th Generation
• NVIDIA Decoder (NVDEC): 5th Generation
• Supplementary Power Connectors:
  • 3 x PCIe 8-pin cables (adapter in the box) or
  • 450 W or greater PCIe Gen 5 cable

GPU Memory

• Standard Memory Config: 16 GB GDDR6X
• Memory Speed: 22.4 GB/s
• Level 1 Cache: 9.5 MB
• Level 2 Cache: 64 MB
• Memory Interface Width: 256-bit
• Bandwidth: 912 GB/s

Card Dimensions

• Length: 304 mm
• Width: 137 mm
• Slots: 3-Slot (61mm)

Some Important Supported Technologies

• NVIDIA Reflex
• NVIDIA Broadcast
• PCI Express Gen 4
• Resizable BAR
• NVIDIA® GeForce Experience™
• NVIDIA Ansel
• NVIDIA FreeStyle
• NVIDIA ShadowPlay
• NVIDIA Highlights
• NVIDIA G-SYNC®
• Game Ready Drivers
• NVIDIA Studio Drivers
• NVIDIA Omniverse
• Microsoft DirectX® 12 Ultimate
• NVIDIA GPU Boost™
• NVIDIA NVLink™ (SLI-Ready)
• Vulkan RT API, OpenGL 4.6
• AV1 Encode Yes
• AV1 Decode Yes
• VR Ready

Nvidia RTX 4080 Vs. AMD RX 6900 XT

Technical Differences

Feature	Nvidia GeForce RTX 4080	AMD Radeon™ RX 6900 XT
Cores	CUDA® Cores: 9728 Tensor Cores: 304 RT Cores: 76	Stream Processors: 5120 RT Cores: 80
ROPs and Texture units	ROPs: 112 Texture Units: 304	ROPs: 128 Texture Units: 320
Clock Speed	Base clock: 2.21 GHz Boost clock: 2.51 GHz	Base clock: 1.825 GHz Boost clock: 2.25 GHz
TDP	300 watts	320 watts
Temperature	Max Temp: 90 °C	Max Junction Temp: Up to 110 °C
Cache	64 MB L2 Cache	128 MB AMD Infinity Cache (L3)
Transistor count	45.9 Billion	26.8 Billion
Die Size	378.6 mm²	520 mm²

Architecture

The architectures of the two graphics cards are pretty diverse. The RTX 4080 has NVIDIA’s latest “Ada Lovelace” architecture, while the RX 6900 XT has AMD’s RDNA™ 2 architecture which is the predecessor of AMD’s latest RDNA™ 3 architecture.

The Ada Lovelace architecture from Nvidia is a highly programmable and extensible architecture that makes it simple and effective to deploy deep learning applications. The Ada Lovelace architecture’s versatility in handling various data kinds is one of its main advantages. Its use of a cutting-edge dataflow engine enables it to handle both linear and non-linear data. The architecture is excellent for large-scale deep-learning applications because it is also exceptionally energy-efficient.

The AMD RDNA™ 2 architecture, which was introduced roughly two years ago, is a high-performance gaming architecture that offers next-generation gaming experiences and amazing images. The architecture is built to provide great performance and power efficiency. It was based on the market-leading RDNA gaming architecture. AMD claimed that the RDNA 2 architecture enables the fastest gaming GPUs in the world and serves as the basis for next-generation gaming experiences.

Chip Design

The Nvidia RTX 4080 is built on the AD-103 chip, while the AMD RX 6900 XT is assembled on the Navi-21 technology. The chips of both graphics cards are capable enough to support DirectX 12 Ultimate.

The AD-103 makes use of NVIDIA’s most advanced Ada Lovelace architecture. This chip is manufactured by TSMC using a production technique holding a resolution of 4 nanometers. This chip features 45.9 billion transistors with a die area of 379 mm². There are 336 tensor cores, 112 ROPs, 336 texture mapping units, 10752 shading units, and 336 texture mapping units in AD-103. 

When we look at the specs of the Navi 21 chip of RX 6900 XT, it uses AMD RDNA™ 2 architecture. It is also manufactured at TSMC, but the resolution of the manufacturing process of this chip is 7 nanometers. The smaller resolutions give testimony to the superior and latest technology. Navi 21 has 26.8 billion transistors with a 520 mm² die size. Navi 21 provides 128 ROPs, 5120 shading units, 320 texture mapping units, and 320 shading units.

Memory

GDDR6X memory is included with the Nvidia RTX 4080, whereas the AMD RX 6900 XT has a GDDR6-type of memory. The storage capacity of both graphics cards is the same (16 GB). 

The GDDR6X is an upgraded version of GDDR6. It is more efficient in terms of power. The memory speed of GDDR6X (RTX 4080) is also more significant than that of GDDR6 (RX 6900 XT) in Nvidia RTX 4080 vs. AMD RX 6900 XT. It is said that the GDDR6X is overall 15% more power-efficient than GDDR6.

The memory interface width of both graphics cards is the same at 256 bits. The AMD RX 6900 XT has a memory transfer rate of 16 GBps and a memory bandwidth of up to 512 GB/s. The Nvidia GeForce RTX 4080, on the other hand, offers a faster memory speed of 22.4 GBps and a far higher bandwidth of up to 912 GB/s. The figures indicate that Nvidia GeForce RTX 4080 has faster memory.

Also Read: RTX 4080 vs RX 6950 XT 

DLSS 3.0 Vs. FidelityFX™ Super Resolution

The DLSS 3.0 is a feature of Nvidia RTX 4080 in whose response the AMD RX 6900 XT appears with FidelityFX™ Super Resolution.

DLSS, which stands for Deep Learning Super Sampling, is an extremely robust characteristic of RTX graphics cards. This feature of NVIDIA was invented to improve the gaming performance of graphics cards by providing better frame rates using artificial intelligence. DLSS 2.0, which was in the 3rd generation NVIDIA GPUs formed the foundations for DLSS 3.0. The DLSS 3.0 can deliver double the performance compared to DLSS 2.0.

While the preliminary objective of the FidelityFX™ Super Resolution (FSR) is analogous to that of DLSS to improve gaming performance. The developers of FSR aimed at upscaling graphics during gaming.

While DLSS is exclusively a feature of NVIDIA graphics cards, the FSR innovation is available on both AMD and NVIDIA graphics cards.

For more detailed differences between these two technologies, read Nvidia DLSS Vs AMD FSR.

Gaming Benchmarks

The best way to measure the performance of graphics cards is their gaming benchmark. For Nvidia RTX 4080 vs AMD RX 6900 XT, we have examined the criterion of 12 games that demand high performance. These benchmarks are divided into two series, each with six rounds. The test PC was different for each string, and the separate person drew their bars. However, in each series, the same exemplar, 4K (2160p), was applied to gaming.

First Series

Games from the first series comprise Assassin’s Creed Valhalla, Cyberpunk 2077, God of War, Horizon Zero Dawn, Red Dead Redemption 2, and Watch Dogs Legion. This series’ benchmarks were acquired from Mike Benchmarks.

Test PC Specs

The specifications of the PC used for playing games of the first series include:

• CPU: AMD RYZEN 9 5950X
• Motherboard: MSI MAG B550 TOMAHAWK
• RAM: 2x16GB DDR4 3600MHz G.Skill
• SSD: Samsung 1TB 980 Pro PCIe 4.0 x4 M.2
• Liquid Cooler: Lian-Li Galahad 360mm UNI FAN SL Edition
• PSU: Cooler Master V850 SFX Gold Full Modular
• PC Case: Lian Li O11 Dynamic XL

Assassin’s Creed Valhalla

A game with an extreme GPU requirement, Assassin’s Creed Valhalla, is one of the best to gauge graphic card performance.

The minute we sampled how well the two GPUs were working, the RTX 4080 was making a better of 100 FPS in contrast to 75 FPS by RX 6900 XT. That stunning FPS lead of 33.3% by RTX 4080 is impressive.

The RTX 4080 produced a maximum of 197 frames per second during gaming in Assassin’s Creed Valhalla, compared to the RX 6900 XT’s maximum of 159. And the RTX 4080 and RX 6900 XT delivered 38 and 34 in minimum FPS, respectively. If you see, the RTX 4080 has attained a much higher limit, while RX 6900 XT led the way to the lower limit.

During gameplay, the RTX 4080 delivered 92 FPS on average, whereas the RX 6900 XT could only muster 70 FPS on average. Compared to the RX 6900 XT, the RTX 4080 produced 22 more FPS or around 31% more overall.

The RX 6900 XT required more time per frame, taking roughly 13.0 milliseconds compared to the RTX 4080’s 10.0 milliseconds. A smaller frame time is always preferable for gaming.

The RX 6900 XT worked at an optimal temperature of 80 °C, whereas the RTX 4080 showed 76 °C in Assassin’s Creed Valhalla. When it comes to workload, the RTX 4080 had a 1% lower GPU load than the RX 6900 XT.

Cyberpunk 2077

The RTX 4080 was outputting a greater of 73 FPS compared to the 50 FPS by RX 6900 XT in the split-second test we conducted to compare the performance of the two GPUs. The fact that both cards in Cyberbunk 2077 have significantly lower frame rates than in Assassin’s Creed Valhalla suggests that the game is heavier.

The RTX 4080 once again earned the higher FPS cap of 120 FPS in this playtime, as opposed to the RX 6900 XT’s maximum of 70 FPS. The lowest levels for both graphics cards were the same at 37 frames per second. RTX 4080 is spectacularly advanced in terms of maximum frame rates.

Compared to the RX 6900 XT, which could only manage an average frame rate of 54, the RTX 4080 offered 78 FPS. The RTX 4080 produced 24 more frames per second, or around 45% more on average, compared to the RX 6900 XT’s performance.

Similar Guides: RTX 3080 vs RX 6800 XT 

The RX 6900 XT needed more time per frame, taking about 19.3 milliseconds as opposed to the 12.0 milliseconds frame duration of the RTX 4080. RX 6900 XT’s frame time is significantly higher than RTX 4080’s, making the latter more ideal for gaming, especially Cyberpunk 2077.

The RTX 4080 displayed 73 °C, whereas the RX 6900 XT served at a more increased temperature of 76 °C. The temperature of two GPUs is slightly lower in Cyberpunk 2077 than in the previous game.

The GPU load on RTX 4080 was only 85%, while RX 6900 XT had a 98% load. The RTX 4080 was reckoning the more brutal game to be gentle based on the 13% less GPU load, which is a pretty significant number.

God Of War

In the instantaneous test of the performance of the two GPUs, the RTX 4080 was producing more FPS, 101, compared to the RX 6900 XT’s output of 70.

In God of War, the RTX 4080 once more obtained a higher FPS cap of 255 FPS as opposed to the RX 6900 XT’s maximum of 212 FPS. Talking about the lowest FPS in the game, RTX 4080 reached 41, while the RX 6900 XT delivered the least 38 FPS. In this game, both graphics cards’ maximum frame rates were much better (higher).

The RTX 4080 offered 98 FPS compared to the RX 6900 XT’s average frame rate of only 65. Relative to the RX 6900 XT, the RTX 4080 delivered 33 more frames per second or about 50% more on average.

Instead of the RTX 4080’s 9.9 ms frame period, the RX 6900 XT required around 14.3 ms time per frame. In Nvidia RTX 4080 vs. AMD RX 6900 XT, the RX 6900 XT has about 50% more frame time in God of War.

The load on both graphics cards was very high in this gameplay. The RX 6900 XT was at 99% load, whilst the RTX 4080 was under 98% load.

Talking about the GPU temperature, both the graphics card were working at the same temperature of 81 °C. The temperature of both GPUs is relatively higher in God of War compared to the temperatures of two GPUs in Cyberpunk 2077.

Horizon Zero Dawn

The RTX 4080 generated 123 FPS which is about 50% higher than the 81 FPS delivered by the RX 6900 XT in the instantaneous performance test of the two GPUs.

The RTX 4080 has again achieved a higher FPS ceiling in Horizon Zero Dawn, 207 FPS, as fought to the RX 6900 XT’s top of 141 FPS.

Regarding the game’s lowest FPS, this was the first game in which the RTX 4080 achieved the lower FPS limit of 37. Here the RX 6900 XT had a frame rate of 39, which is 2 FPS greater than the FPS supplied by the RTX 4080.

Contrary to the RX 6900 XT’s average frame rate of just 83, the RTX 4080 offered a higher average performance of 126 FPS. The RTX 4080 produced around more than 50% more average FPS than the RX 6900 XT.

The RX 6900 XT used about 13.8 ms of time for each frame as opposed to the RTX 4080’s 7.6 ms. In Horizon Zero Dawn, the RTX 4080 displayed a remarkable time efficiency of around 82% per frame over the RX 6900 XT.

In this gameplay, both graphics cards were under a lot of strain. The RX 6900 XT was performing at 99% load. However, the load on RTX 4080 was 94% in Horizon Zero Dawn. The load on RX 6900 XT stayed the same as in God of War. On the RTX 4080, regardless, the stress was reduced by 5%.

Regarding GPU temperature, the temperature of RX 6900 XT was 81 °C (same as in the previous game) during Horizon Zero Dawn while the RTX 4080’s temperature was 79 °C ( 2 °C lesser than the temperature in the previous game).

Red Dead Redemption 2

The RTX 4080 was making 111 FPS instantaneously, which is nearly 60% more than the RX 6900 XT’s 70 FPS.

In RDR 2, the RTX 4080 has once more outperformed the RX 6900 XT’s 172 FPS, with a peak of 247 FPS. The RX 6900 XT had a minimum frame rate of 37, which is 12 FPS less than the RTX 4080’s minimum FPS of 49.

The average frame rate of the RTX 4080 was 108 FPS, in contrast to the RX 6900 XT’s limited 66 average FPS. About 65% higher average frame rate produced by the RTX 4080 makes it win the FPS battle in Nvidia RTX 4080 vs. AMD RX 6900 XT.

The RTX 4080 used 7.2 ms for each frame, but the RX 6900 XT used roughly 14.6 ms. The RTX 4080 outperformed the RX 6900 XT in time efficiency in Red Dead Redemption 2 by more than 100%.

Both graphics cards were put through a lot of stress throughout this gameplay. At 95% load, the RX 6900 XT was functioning well. And the load on the RTX 4080 was 95%.

During Red Dead Redemption 2, both GPUs had much higher temperatures. The RX 6900 XT reached a temperature of 82 °C, and the RTX 4080 reached a temperature of 81 °C.

Watch Dogs Legion

When we took the instantaneous performance readings, the RTX 4080 was producing 98 FPS, while the RX 6900 XT was turning over 60 FPS.

The RTX 4080 once again beat the RX 6900 XT’s max of 88 FPS in Watch Dogs Legion, reaching a peak of 126 FPS. If we compare these values with the performance of 2 GPUs in RDR 2, the max values have decreased mostly.

For the second time, the RTX 4080 reached lower FPS figures in the first series. A minimum frame rate of 34 FPS was delivered by the RTX 4080, while the minimum FPS provided by RX 6900 XT was 40.

The RTX 4080 had a higher average frame rate of 88 FPS than the RX 6900 XT, which was only capable of 62 FPS on average during the whole gameplay. The RTX 4080 produced about 42% more average FPS than RX 6900 XT.

The RX 6900 XT consumed approximately 16.7 ms per frame compared to the RTX 4080’s 8.9 ms for each frame. Again the RTX 4080 has better frame time efficiency in Watch Dogs Legion.

The RX 6900 XT was working at a high load of 98%, while the RTX 4080 was under only 81% load. When comparing the two GPUs’ loads, the RX 6900 XT was 17% more loaded than the RTX 4080.

The temperature of two graphics cards during Watch Dogs Legion was significantly lesser than that in RDR 2. The RTX 4080 had a temperature of only 69 °C, while the RX 6900 XT had 76 °C. According to its load and temperature, the RTX 4080 handled Watch Dogs Legion quite easily.

Second Series Benchmarks

This series will feature performances by Nvidia GeForce RTX 4080 vs. AMD RX 6900 XT in “A Plague Tale: Requiem, Call of Duty: Modern Warfare 2, F1 22, Forza Horizon 5, Kena: Bridge of Spirits, and Uncharted: The Lost Legacy”. These games are all significantly GPU-intensive. The brother who evaluated how well two GPUs performed in the games of the second series has a channel named Benchmarks For Gamers.

Test PC Specs

When playing games from the second series, the following PC specs are used:

• OS: Windows 11
• Processor: Intel Core i9-13900K
• Motherboard: ASUS TUF Gaming Z690-Plus
• RAM: G.Skill Trident Z5 2x16GB, 6000
• Benchtable: Streacom BC1
• Cooler – MO-RA 360, EK-Quantum Velocity Full Nickel

A Plague Tale: Requiem

In A Plague Tale: Requiem, both the graphics card were yielding very low frame rates. Their average and even maximum FPS were lower than 100. This proves “A Plague Tale: Requiem” to be highly GPU-extensive.  

The instantaneous FPS provided by RTX 4080 was 58, while RX 6900 XT was providing only 39 FPS. The 1% low frame rates of RTX 4080 and  RX 6900 XT were 49 and 34 in the game, respectively.

To evaluate the overall performance shown by 2 graphics cards in A Plague Tale: Requiem, the RTX 4080 made average of 55 FPS, while the average was 38 FPS for RX 6900 XT. Even if FPS is lower, but still RTX 4080’s average performance was nearly 45% better than RX 6900 XT.

The frame time of RTX 4080 was 17.3 ms, while the time consumed was 25.4 ms per frame for RX 6900 XT.

The power being consumed is a crucial consideration when discussing the performance of two graphics cards. During playtime, the RTX 4080 was consuming higher power of 314 watts in comparison to RX 6900 XT’s 299 watts power.

The RTX 4080’s temperature in “A Plague Tale: Requiem” was 64 °C, whereas the AMD RX 6900 XT’s was 79 °C. A 15 °C difference is a significant one. It is clearly stated that the game was quite strenuous for the RX 6900.

Call of Duty: Modern Warfare 2

The RTX 4080 delivered 100 instantaneous FPS, while RX 6900 XT only managed to deliver 74. In COD: Modern Warface, the 1% low frame rates for the RTX 4080 and RX 6900 XT were 94 and 69, respectively.

The RTX 4080 produced an average frame rate of 104 FPS, while the RX 6900 XT produced an average frame rate of 80 FPS. The FPS delivered by both graphics cards has increased by two-fold from “A Plague Tale: Requiem” to “Call of Duty: Modern Warfare 2”.

While the RX 6900 XT required 13.4 ms per frame, the RTX 4080 only required 10.1 ms. So, the RTX 4080 was completing each frame with a time efficiency of 33% in this game.

The RTX 4080 used more power while playing Call of Duty: Modern Warfare 2, 306 watts as opposed to 300 watts for the RX 6900 XT. The power consumption difference between the two GPUs has decreased from the first to the second game of the series. 

In gameplay, the RTX 4080’s temperature was 64 °C, whereas the AMD RX 6900 XT’s was 75 °C. The temperature of RX 6900 XT has dropped by 4 °C in COD: Modern Warfare.

F1 22

In F1 22, the RX 6900 XT managed to produce 145 instantaneous FPS compared to the RTX 4080’s 170. And the 1% low frame rates for the RTX 4080 and RX 6900 XT were 99 and 112, respectively. The 1% low FPS provided by RX 6900 XT is better in this game.

The RX 6900 XT delivered an average frame rate of 137 FPS, whilst the RTX 4080 generated a frame rate of 170 FPS on average. The margin of 37 FPS favors RTX 4080 in the FPS race between Nvidia RTX 4080 vs. AMD RX 6900 XT.

The average performance of both graphics cards is better in this game compared to that in the first two games of this (second) series. All types of FPS have improved significantly from “A Plague Tale: Requiem” to “Call of Duty: Modern Warfare 2” and then to “F1 22”.

The RTX 4080 used only 5.6 ms per frame compared to the RX 6900 XT’s 6.7 ms. The frame time has also reduced in F1 22.

This game required 309 watts from the RTX 4080 as opposed to 300 watts from the RX 6900 XT. The RTX 4080 functioned at 63 °C during gameplay, while the AMD RX 6900 XT worked at 69 °C. The temperature of RX 6900 XT has dropped in F1 22 also.

Forza Horizon 5

When compared to the RTX 4080’s 110 instantaneous frames per second in Forza Horizon 5, the RX 6900 XT was able to deliver 74. And for the RTX 4080 and RX 6900 XT, the 1% low frame rates were 72 and 64, respectively. The RTX 4080 has improved its 1% low FPS performance in this game.

While the RTX 4080 produced an average frame rate of 103 FPS, the RX 6900 XT produced 69 FPS on average. The performance of RTX 4080 was 50% better than RX 6900 XT.

In comparison to the 13.9 milliseconds frame time of RX 6900 XT, the RTX 4080 required only 8.7 milliseconds.

The RTX 4080 worked with a consumption of 287 watts in Forza Horizon 5, as opposed to the RX 6900 XT at 298 watts. In the second series, it’s the first time the power being consumed by RTX 4080 is less than RX 6900 XT.

The AMD RX 6900 XT operated at 74 °C, whereas the RTX 4080 operated at 62 °C during gameplay. So, the RTX 4080 stayed more fantastic by 12 °C than RX 6900 XT in Forza Horizon 5.

Kena: Bridge Of Spirits

In Kena: Bridge of Spirits, the RTX 4080 was delivering 93 instantaneous FPS whereas the RX 6900 XT was turning over 60 FPS. Additionally, the 1% low frame rates for the RTX 4080 and RX 6900 XT were 60 and 34, respectively. The 1% low FPS made by RX 6900 XT is relatively poor.

The RX 6900 XT delivered an average frame rate of 60 FPS, compared to the RTX 4080’s 92 FPS. Performance-wise, RTX 4080 outperformed RX 6900 XT by about 53%. So, in the FPS competition of Nvidia RTX 4080 vs. AMD RX 6900 XT, the RTX 4080 won with a sluggish lead.

The RTX 4080 used only 10.8 milliseconds for each frame, as opposed to the RX 6900 XT’s 17.4 milliseconds. Comparing Kena: Bridge of Spirits to Forza Horizon 5, the frame time discrepancy between the two graphics cards has expanded.

The RTX 4080 used 304 watts, whereas the RX 6900 XT used 299 watts to operate in Kena: Bridge of Spirits.

During gameplay, the RTX 4080 ran at 63 °C, whereas the AMD RX 6900 XT ran at 81 °C. In this game, the AMD RX 6900 XT’s temperature has significantly increased.

Uncharted: The Lost Legacy

At the moment, we noticed how well two graphics cards were performing, the RTX 4080 was outputting 86 frames per second while the RX 6900 XT was making about 71 frames per second.

When it comes to two GPUs’ 1% low FPS performance in Uncharted: The Lost Legacy, the RTX 4080, with a lead of 15 FPS, turned over 75 FPS compared to 1% low FPS equal to 59 by AMD RX 6900 XT.

The RTX 4080’s average frame rate was equal to 83 FPS, while the RX 6900 XT offered a 68 FPS average. The difference in average FPS between 2 GPUs has reduced from “Kena: Bridge of Spirits” to “Uncharted: The Lost Legacy.” In this game, Nvidia RTX 4080 surpassed AMD RX 6900 XT by about 22% in terms of average performance.

The RX 6900 XT had a 14.3 milliseconds frame period, while the RTX 4080 consumed 11.9 milliseconds per frame.

In Uncharted: The Lost Legacy, the RTX 4080 utilized 248 watts, while the RX 6900 XT used 299 watts. The difference in power consumption between the two GPUs was 51 watts. The RTX 4080 used unanticipatedly lesser power in this game.

Throughout the playtime of Uncharted: The Lost Legacy, the RTX 4080 operated at an average of 59 °C, whereas the AMD RX 6900 XT performed at 76 °C. Again, as in the last game, there is a substantial gap in the temperatures of two graphics cards.

Overall Gaming Performance

To evaluate the effectiveness of the two GPUs performed, we will discuss the mean of average, minimum, and maximum frame rates that were recorded for each graphics card in all the games we have discussed. Additionally, we shall discuss their average frame times. 

FPS

For gamers, having a greater frame rate has clear, quantifiable advantages. Streamlined animations assist in shot targeting, and smaller ghosts and tears minimize the unwanted effects.

Average FPS conveys the primary performance difference. The RTX 4080 had an average of 99 FPS, while that of the RX 6900 XT was 71. In percentage, Nvidia RTX 4080 has nearly 40% better performance than AMD RX 6900 XT.

The maximum FPS averages for all games for RTX 4080 and RX 6900 XT were 162 and 124, respectively. In terms of overall maximum FPS, Nvidia RTX takes the top spot.

For all games, the RTX 4080 and RX 6900 XT averaged minimum frame rates were 57 and 43, respectively. The RX 6900 XT lead the way to lower average maximum frame rates.

Frame Time

Another crucial factor in gaming performance is the frame time. You can see targets faster and feel more responsively with less system delay. The shorter frame time is, therefore, always desirable.

When we computed the mean frame time for both graphics cards across all the games we’ve already covered, the results were extraordinary.

The frame time average was only 10 milliseconds for the Nvidia RTX 4080. At the same time, the result was 15.2 milliseconds for the 6900 XT. AMD RX 6900 XT was lagging behind RTX 4080’s time effectiveness by 52%. Thus, the RX 6900 XT lost the frame time competition of Nvidia RTX 4080 vs. AMD RX 6900 XT.

Power Consumption & Thermal Efficiency

A graphics card’s power usage during a gaming session should be monitored because it affects how much an electricity bill will cost. At the same time, the health of your graphics card depends on the thermal efficiency.

Power Consumption

The average overall power consumption in all games was 294.7 watts for Nvidia RTX 4080, while for AMD RX 6900 XT, it was 299.2 watts. 

The overall difference is only 4.5 W. This number is not that different. Both of the graphics cards have a good power consumption that wasn’t very high at under 300 watts. Even though the RX 6900 XT has a higher TDP than the RTX 4080 and is 20 watts more powerful, it did not use significantly more power.
AMD RX 6900 XT will cost you more bill relative to Nvidia RTX 4080 due to its higher overall power usage in gaming.

Thermal Efficiency

The temperature during gaming is the most influential factor affecting a graphics card’s lifespan. The average temperature in all games for RTX 4080 is 69.5 °C, while for RX 6900 XT, it is 77.5 °C.

The Nvidia RTX 4080 maintains a very favorable temperature. It is insufficient to do any harm. As long as it stays below 80 °C, the average temperature of the RX 6900 Xt is also within acceptable bounds and below the maximum temperature.

But in Nvidia RTX 4080 vs. AMD RX 6900 XT, the thermal efficiency of RTX 4080 is greater than that of RX 6900 XT by 11.5%.

Pricing And Availability

The GeForce RTX 4080 will cost $1199, according to Nvidia. The RX 6900 XT cost was $999 at launch. Its cost has, however, dropped recently. You can get AMD RX 6900 XT for less than 800$. The average price of this card is about 700$ nowadays.

Regarding availability, the RX 6900 XT is readily available in markets. You can purchase it from the merchant you prefer through Amazon at the average price.

In markets, the Nvidia GeForce RTX 4080 is not universally available. Because it is newly launched, a few sellers are providing this graphics card. They are charging an average of 1400$ for this GPU. Some sellers are demanding as high as 2000$ for Nvidia RTX 4080 on Amazon.

Which One Should You Go For?

Let’s summarise all the details about the two graphics cards before making a recommendation to you. 

Both graphics cards have different types of cores. RTX 4080 has 9728 Nvidia CUDA® Cores, while the RX 6900 XT has 5120 Stream processors. The Ray Tracing cores, texture units, and ROPs of RTX 4080 are less than those of RX 6900 XT.

The clock speed (both base and boost) that determines actions per second of RX 6900 XT is less than that of RTX 4080. So, RTX 4080 would be working at a better speed in the competition of Nvidia RTX 4080 vs. AMD RX 6900 XT.

The architecture of RTX 4080 is “Ada Lovelace,” which is the latest from NVIDIA. While the “RDNA™ 2” architecture of RX 6900 XT is not the latest from AMD. The AD-103 chip is more advanced and shows marvelous performance because of 7 nm fabrication technology. While the Navi 21 chip of RX has n outdated 7 nm chip, but still 7 nm also shows a very good performance.

The memory version of Nvidia RTX 4080 is enhanced with increased speed and bandwidth in contrast to the GDDR6 of AMD RX 6900 XT.

The TDP of AMD RX 6900 XT is greater, and the maximum junction temperature of this graphics card is also greater in comparison to the second GPU. However, the gaming performance of the RTX 4080 was better than RX 6900 XT.

The answer to “Which graphics card provides the more favorable performance/price ratio?” is Nvidia GeForce RTX 4080. 

After all this, we recommend you go for Nvidia GeForce RTX 4080. If this graphics card is not affordable for you, then don’t hesitate to go for RX 6900 XT. Because if we don’t compare the performance of RX 6900 XT with other GPUs, its separate performance is also very good.