Ryzen 9 7900X3D Vs i9-13900K: We Tested Both

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Pros & Cons

CPU	Pros	Cons
Core i5 13900K	✅Higher specification of memory ✅Option to use DDR4 or DDR5 RAM	❌Slightly lower performance
Ryzen 9 7900X3D	✅Slightly higher performance ✅Larger L3 cache size	❌Smaller memory bandwidth

Comparison Table

Technical Specs	Core i9 13900K	Ryzen 9 7900X3D
Socket	Intel Socket LGA-1700	AMD Socket AM5
Codename	Raptor Lake	Zen 4 (Raphael)
Efficiency Core Threads	-	16
Shader Units	128	256
L3 Cache	36MB shared	128MB shared
tJMax	100°C	89°C
Release Date	Oct 2022	Feb 2023
Texture Units	16	8
Best Cooler	Best CPU Coolers for Core i9-13900K	Best CPU Coolers For Ryzen 9 7900X3D

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Architectural Differences

1. Core Count: The Ryzen 9 7900X3D uses 12 cores totaling 24 threads, while the Core i9 13900K combines 8 performance cores and 4 efficiency cores to total 16 threads.
2. Clock Speeds: The Ryzen 9 7900X3D has a base clock of 4.4 GHz, with an all-core boost of up to 5.6 GHz, while the Core i9 13900K has a base clock of 3.0 GHz, and it maxes out around 5.4 GHz.
3. Processing nodes: The Ryzen 9 7900X3D uses 5nm processing nodes, which are more efficient than the 10nm processing nodes found on the Core i9 13900K.
4. TDP: The AMD chip has a max boost TDP of 120 watts, whereas the 13900K has a max TDP of 125 watts.

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Gaming Benchmarks – 1080p

After reviewing their precise specs and productivity performance comparison, let us compare the gaming performance of the Ryzen 9 7900X3D vs Core i9-13900K. All the games were played at 1080p resolution. The system used while playing games had the following specifications.

Test Bench Specs

• OS: Windows 11  
• Motherboard: MSI MEG X670E ACE/ Asus ROG Strix Z790 – E Gaming
• GPU: Asus TUF Gaming RTX 4090 24GB
• RAM: Corsair Dominator Platinum RGB 32GB DDR5 6000MHz RAM
• SSD: XPG GAMMIX S70 BLADE 2TB NVMe
• PSU: ENERMAX REVOLUTION D.F. X 1050W
• CPU Cooler: Corsair ICUE H150I Elite

Assassin’s Creed Valhalla

• While testing, we observed that the AMD Ryzen 9 7900X3D outperformed the Core i9-13900K by 2.8% in the highly intensive Assassin’s Creed Valhalla, achieving a superb average of 186 FPS compared to the Core i9-13900K’s 181 FPS.

Cyberpunk 2077

• In our test of Cyberpunk 2077, the Intel Core i9-13900K outperformed the Ryzen 9 7900X3D by 3.2%. The Core i9-13900K achieved an average frame rate of 162 FPS, while the Ryzen 9 7900X3D produced an average of 157 FPS.

Far Cry 6

• While testing, the Ryzen 9 7900X3D outperformed the Core i9-13900K by 2.2% in Far Cry 6, achieving an average frame rate of 185 FPS compared to the Core i9-13900K’s 181 FPS.

Forza Horizon 5

• While testing, the Ryzen 9 7900X3D outperformed the Core i9-13900K by 1.85% in Forza Horizon 5, achieving an average frame rate of 220 FPS compared to the Core i9-13900K’s 216 FPS.

God Of War

• During testing, the Core i9-13900K outperformed the Ryzen 9 7900X3D by 3.11% in God Of War, achieving an average frame rate of 232 FPS compared to the Ryzen 9 7900X3D’s 225 FPS.

Hitman 3

• In our test, the AMD chip outperformed the intel’s i9-13900K by 4.3% in Hitman 3, achieving an average frame rate of 219 FPS compared to the Core i9-13900K’s 210 FPS.

Horizon Zero Dawn

• In our test, the Ryzen 9 7900X3D outperformed the Core i9-13900K by 7.94% in Horizon Zero Dawn, with an average frame rate of 231 FPS compared to 214 FPS.

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Overall Gaming Analysis

Featured	Core i9 13900K	Ryzen 9 7900X3D
Average FPS	199.4 📈	203.3 📈
Winner: AMD's Ryzen 9 7900X3D

The Ryzen 9 7900X3D held a slight gaming performance edge over the Core i9-13900K, with a 1.96% lead in average FPS at 1080p. Despite occasional wins by the i9-13900K in specific games, the Ryzen’s superior average frame rate reinforced its gaming performance advantage.

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Power Efficiency

The Ryzen 9 7900X3D is more effective and consumes less power. The Core i9-13900K ran at 120.7 Watts throughout the game tests, while the Ryzen 9 7900X3D consumed 109.6 Watts. Owing to its 10.13% greater power efficiency, the Ryzen 9 7900X3D is a better option for those on a lower budget.

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Price And Availability

CPU	Launch MSRP	Current Price
Core i9 13900K	💲599	💲522
Ryzen 9 7900X3D	💲599	💲409
Difference	0%	21.65%

Price and accessibility are key when choosing a processor. Initially priced similarly, the Ryzen 9 7900X3D and Core i9-13900K offer competitive options. The Ryzen 9 7900X3D is now more affordable, while the i9-13900K remains popular. Both are readily available through leading online retailers.

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Which One Should You Go For?

Ryzen 9 7900X3D: The Ryzen 9 7900X3D features 12 cores and 24 threads with a maximum clock speed of 5.6 GHz. It offers slightly better gaming performance compared to the Core i9-13900K, along with superior efficiency in gaming power and thermal management.

Core i9-13900K: The Core i9-13900K boasts 24 cores and 32 threads, with a turbo clock reaching up to 5.8 GHz. While its gaming performance slightly lags behind the Ryzen 9 7900X3D, it excels in general use and tasks requiring higher core counts.

Based on the comparison, we recommend the Ryzen 9 7900X3D for gaming due to its superior performance and affordability. However, if you need a processor for tasks requiring higher core counts and general use, the Core i9-13900K would be a better albeit pricier option.