AMD Ryzen 9 7900X vs Ryzen 9 5900X

We compared two 12-core desktop CPUs: the 4.7 GHz AMD Ryzen 9 7900X against the 3.7 GHz Ryzen 9 5900X. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 5900X and 7900X
Advantages of AMD Ryzen 9 7900X
  • Newer - released 2-years later
  • Around 25.72 GB/s (54%) higher theoretical memory bandwidth
  • More modern manufacturing process – 5 versus 7 nanometers
  • 40% faster in a single-core Geekbench v5 test - 2294 vs 1644 points
  • Newer PCI Express version – 5.0
  • 17% higher Turbo Boost frequency (5.6 GHz vs 4.8 GHz)
  • Includes an integrated GPU Radeon Graphics (Ryzen 7000)


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)


Full technical specification of AMD Ryzen 9 7900X and Ryzen 9 5900X


Vendor AMD AMD
Released September 29, 2022 October 8, 2020
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Zen 4 (Raphael) Zen 3 (Vermeer)
Integrated GPU Radeon Graphics (Ryzen 7000) No


Performance Cores
P-Cores 12 12
P-Threads 24 24
Base Frequency (P) 4.7 GHz 3.7 GHz
Turbo Boost Frequency (P) 5.6 GHz 4.8 GHz
Total Cores 12 12
Total Threads 24 24
Bus Frequency 100 MHz 100 MHz
Multiplier 47x 37x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 1MB (per core) 512K (per core)
L3 Cache 64MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes


Transistors 13.1 billions 4.15 billions
Fabrication process 5 nm 7 nm
Socket AM5 AM4
TDP 170 W 105 W
Max. Boost TDP 230 W -
Peak temperature 95°C 90°C


Integrated Graphics Radeon Graphics (Ryzen 7000) -
GPU Base Clock 1500 MHz -
GPU Boost Clock 2200 MHz -
Shading Units 128 -
TMUs 8 -
ROPs 4 -
Execution Units 2 -
TGP 15 W -

Memory Support

Memory types DDR5-5200 DDR4-3200
Memory Size 128 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth 73.4 GB/s 47.68 GB/s
ECC Support Yes Yes


Official site AMD Ryzen 9 7900X official page AMD Ryzen 9 5900X official page
PCI Express Version 5.0 4.0
PCI Express Lanes 28 20

Cast your vote

Choose between two processors
166 (55.1%)
135 (44.9%)
Total votes: 301


So which CPU will you choose: AMD Ryzen 9 5900X or Ryzen 9 7900X?
James 09 October 2022 02:53
Have both the 5900x and 7900x now both running with 6900xt Radeon founders edition. To be honest, can't really tell the difference between the 2. Better single core performance for sure but at the cost of more power and heat to dissipate. If ya have a 5000 series I'd stick with it for the time is not worth replacing the mobo. Ram. Cooler at this point when the 5900x is still far from being a bottleneck.
+24 Reply
Dutton 07 October 2022 12:03
For me 30% performance gain single core is not enough to spend a big dollar. I'll wait 4-5 years.
+3 Reply
Perry 08 October 2022 17:29
I totally agree! If it’s not 50 or above not worth it really and granted you have to switch everything including the motherboard due to AM5 (in my case).
+4 Reply
Peter 01 October 2022 19:22
Up to 40% more power consumption, for up to 40% speed (multi-core). Not really a game changer if your CPU wasn't a bottleneck before. I‘ll stick with my 5900x.
+12 Reply