GuidesComparisonsi9 13900KS Vs Ryzen 7 7800X3D

i9 13900KS Vs Ryzen 7 7800X3D [We Tested 7 Games]

In this comparison, we will take a look at the performance of both of these processors in modern games, while also going over their architectural differences.

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The Ryzen 7 7800X3D and Intel’s Core i9 13900KS are high-performance CPUs, both achieving their excellence in different ways. We’ll examine the differences in architecture and gaming performance of the i9 13900KS vs Ryzen 7 7800X3D in the comparison below.

Key Takeaways

  • The Ryzen 7 7800X3D had 8% better performance than the i9 13900KS in our gaming tests.
  • The AMD CPU also consumed 25% less power than the i9 13900KS, with a power consumption of only 89 watts compared to the 118 watts of the i9.
  • The 7800X3D is about 35% less expensive than the i9 13900KS at the time of writing this article, though the prices are subject to change.
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Comparison Table

ProcessorAMD Ryzen 7 7800X3DIntel Core i9 13900KS
ArchitectureZen 4Raptor Lake
Integrated GraphicsYesYes
Graphics ModelAMD Radeon™ GraphicsIntel UHD Graphics 770
Best MotherboardsMotherboard For Ryzen 7 7800X3DMotherboards For i9 13900KS
Best RAMRAM For Ryzen 7 7800X3DRAM For Core i9 13900KS
Best CPU CoolersCPU Coolers For Ryzen 7 7800X3DCPU Coolers For Core i9 13900KS

Architectural Differences

  1. Process Nodes: The i9 13900KS uses a 10nm manufacturing process, whereas the Ryzen 7 7800X3D uses a 5nm manufacturing process. The more recent processing nodes on the Ryzen 7 7800X3D make it more power efficient.
  2. Core Count: The AMD Ryzen 7 7800X3D features a total of 8 cores and 16 threads, while the Intel Core i9 13900KS has a significantly higher core count of 24 cores (16 Efficiency cores and 8 Performance cores) and 32 threads
  3. Clock Speeds: The AMD Ryzen 7 7800X3D has a base clock of 4.2GHz and can boost up to 5.0GHz. On the other hand, the Intel Core i9 13900KS has a base clock of 2.40GHz, but it can boost up to an impressive 5.40GHz
  4. Memory: Both processors have support for high-capacity memory. The AMD Ryzen 7 7800X3D supports DDR5 memory technology with a maximum memory capacity of 128GB. On the other hand, the Intel Core i9 13900KS supports DDR4 and DDR5 memory, with a maximum memory capacity of 128GB. 
  5. Cache: The AMD Ryzen 7 7800X3D features a larger L3 cache of 96MB, which can improve data access and overall performance. The Intel Core i9 13900KS has a smaller L3 cache of 32MB.
  6. TDP: The TDP (Thermal Design Power) of the AMD Ryzen 7 7800X3D is 120W, while the Intel Core i9 13900KS has a higher TDP of 253W.

Gaming Benchmarks

In this part of the Core i9 13900KS vs Ryzen 7 7800X3D comparison, we will see the difference in performance these processors have while gaming. To maximize the workload on the CPU, we decided to benchmark these chips on 1080p with high settings.

The test bench that accompanied these processors in our testing had the following components:

Horizon Zero Dawn 

Horizon Zero Dawn Performance
Horizon Zero Dawn @1080p (Image By Tech4Gamers)
  • In the first game in our testing, the 7800X3D takes the lead over the much more expensive 13900KS. The Ryzem CPU averaged about 250 FPS, whereas the Intel CPU managed 213 FPS.
  • The disparity in performance continues through the 1% lows, where the Ryzen maintains 193 FPS, whereas the i9 maintains 179 FPS.

Hitman 3

Hitman 3 Performance
Hitman 3 @1080p (Image By Tech4Gamers)
  • In Hitman 3, the Ryzen 7 7800X3D achieved an average of 233 FPS, while the i9 13900KS reached a 222 FPS average. Once again, the Ryzen had significantly better performance.
  • Both CPUs reported similar 1% lows during demanding gameplay sequences, with the Ryzen 7 at 175 FPS and the i9 at 168 FPS. This difference is noteworthy, though not noticeable.

Forza Horizon 5

Forza Horizon 5 Performance
Forza Horizon 5 @1080p (Image By Tech4Gamers)
  • When we fired up Forza Horizon 5 on both processors, the Ryzen 7 achieved an average of 216 FPS, while the i9 reached 209 FPS. The performance difference seems smaller here as Forza is a well-optimized title, taking advantage of the tech on both CPUs.
  • Both processors held their ground in the more demanding parts of our test, with the Ryzen 7 7800X3D at 178 FPS and the i9 13900KS at 172 FPS.

Cyberpunk 2077

Cyberpunk 2077 Performance
Cyberpunk 2077 @1080p (Image By Tech4Gamers)
  • In our brief Cyberpunk 2077 benchmark, the Ryzen 7 7800X3D achieved an average of 155 FPS, while the i9 13900KS delivered a slightly higher average of 161 FPS.
  • Both processors provided similar 1% lows, with the Ryzen at 140 FPS and the i9 at 136 FPS.

Far Cry 6

Far Cry 6 Performance
Far Cry 6 @1080p (Image By Tech4Gamers)
  • The performance lead of the Ryzen 7 7800X3D was restored in Far Cry 6, with it achieving an average FPS of 196 FPS, surpassing the i9 13900KS with an average of 180 FPS.
  • Both processors provided comparable 1% lows, with the Ryzen at 167 FPS and the i9 at 156 FPS. The difference in this game in terms of 1% lows is noticeable.

Assassin’s Creed Valhalla

Assassin's Creed Valhalla Performance
Assassin’s Creed Valhalla @1080p (Image By Tech4Gamers)
  • Assassin’s Creed Valhalla was no challenge for our processors with our accompanying components. The Ryzen 7 7800X3D achieved an average of 226 FPS, outperforming the i9 13900KS, which achieved an average of 212 FPS.
  • The Ryzen CPU also delivered higher 1% lows, with 169 FPS compared to the i9’s 153 FPS.

God Of War

God Of War Performance
God Of War @1080p (Image By Tech4Gamers)
  • For the final game in our testing, God Of War had one of the smallest performance deltas. The Ryzen had an average of 212 FPS, whereas the Core i9 13900KS kept up with an average of 210 FPS.
  • 1% lows were vastly different in this title. The Ryzen 7 7800X3D had 1% lows of 183 FPS, whereas the i9 13900KS had 1% lows of around 101 FPS.

Overall Performance


Average FPS Performance
Average FPS @1080p (Image By Tech4Gamers)

The Ryzen 7 7800X3D has an average framerate of about 214 FPS during our testing, while the Core i9 13900KS has an average framerate of about 201 FPS.

1% lows were also significantly improved on the Ryzen. It maintained a framerate of about 172 FPS during the tests, whereas the i9 had 1% lows of about 152 FPS. This might concur that the i9 will start giving choppy gaming performance earlier than its life cycle, as compared to the Ryzen.

Switching gears to performance per dollar, the Ryzen 7 absolutely demolishes the i9 with a 63% advantage. This means that the Ryzen 7 7800X3D is an example of the fringe case where the tech is better performant and much cheaper than the competition.

If you want to squeeze the most performance out of your hardware, take a look at our guide on overclocking.

Power Consumption

Average Power Consumption
Average Power Consumption @1080p (Image By Tech4Gamers)

The Ryzen CPU consumed around 89 watts on average in the games we tested. Conversely, the i9 had a much higher power draw of approximately 118 watts.

These results prove that the Ryzen 7800X3D can perform markedly better than any given Intel CPU (In gaming scenarios) while consuming less power despite Intel’s efforts to minimize power draw.

The 33% higher power draw of the i9 means that you might need a new PSU to power this processor and get a higher power bill than you would with the Ryzen 7 7800X3D. 

If we look at the performance per watt of these CPUs, the Ryzen 7 7800X3D has about 41% more performance per watt than the i9 13900KS, which cements its incredible architecture as being the way to go for modern processors focused on gaming.


Average Temperature Performance
Average Temperature @1080p (Image By Tech4Gamers)

In our tests, the i9 13900KS had an average peak temperature of 68°C. The Ryzen 7800X3D had an average peak temperature of around 69°C in our tests.

The temperature delta is not large enough to influence your buying decision, though it is important to note that both processors performed well within safe temperature margins during our tests.

Check out our guide on CPU temperatures while gaming to learn more about the safe thermal limits of most processors.

Price And Availability 

Core i9 13900KS has an MSRP of $689, while the Ryzen 7 7800X3D is available for approximately $449, making the i9 about 53.5% more expensive, putting it in a completely different price segment.

Both CPUs are readily available and can be found in various computer parts stores, as well as on e-commerce platforms such as Amazon and Newegg.

What We Recommend

After all this discussion about the performance and features of both these processors, in this part of the Core i9 13900KS vs Ryzen 7 7800X3D comparison, we will look at the demographic for each of these processors.

The i9 13900KS has significant advantages over the Ryzen 7 7800X3D. Its higher core count makes it excel in multithreaded workloads, such as video editing and 3D rendering. It’s also overclocking-friendly, unlike the 7800X3D, which poses a risk to your motherboard with voltage adjustments. If your tasks align with these scenarios, the i9 13900KS is the better choice.

On the other hand, the Ryzen 7 7800X3D is recommended for most consumers. It delivers exceptional gaming performance, is more cost-effective, and consumes less power than the i9 13900KS. This makes it the top choice for gaming purposes.

Pros And Cons 

Core i9 13900KS Ryzen 7 7800X3D
Pros Cons  Pros Cons 
The large number of cores and threads allow this processor to be great for multithreaded workloads. This processor performs inferior to the Ryzen 7 7800X3D even though it is a higher-tier product. It beats the highest-tier offerings from Intel by a large margin while costing significantly less. This processor is very sensitive to changes in voltages.
It has support for both DDR4 and DDR5 memory and a more accessible motherboard, lowering the platform cost. The performance does not justify the price of this processor in gaming workloads. The power consumption of this processor is so low compared to comparable offerings that it will return its value in savings if you use it for few years. It does not perform as well as the 13900KS in multithreaded workloads.

Frequently Asked Questions

Which processor is more recent?

Both processors were released within the span of the same year.

Is it safe to overclock my Ryzen 7 7800X3D?

The 3D V-cache of the X3D processors is very sensitive to changes in voltages, and we cannot recommend messing with the voltages on the 7800X3D.

Does the i9 13900KS represent good value for gaming?

For most people, the Ryzen 7 7800X3D represents better value for gaming than the Core i9 13900KS.

More From Ryzen 7 7800X3D

More From Core i9 13900KS

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