AMD Ryzen 9 5900X vs Ryzen 7 3700X

We compared two desktop CPUs: the 3.7 GHz AMD Ryzen 9 5900X with 12-cores against the 3.6 GHz Ryzen 7 3700X with 8-cores. 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
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 3700X and 5900X
Advantages of AMD Ryzen 9 5900X
  • Has 32 MB larger L3 cache size
  • Newer - released 1-year and 3-months later
  • Has 4 more physical cores
  • 29% faster in a single-core Geekbench v5 test - 1644 vs 1279 points
  • 9% higher Turbo Boost frequency (4.8 GHz vs 4.4 GHz)


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)
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Full technical specification of AMD Ryzen 9 5900X and Ryzen 7 3700X


Vendor AMD AMD
Released October 8, 2020 July 7, 2019
Type Desktop Desktop
instruction set x86-64 x86-64
Codename Zen 3 (Vermeer) -
Integrated GPU No No


Performance Cores
P-Cores 12 8
P-Threads 24 16
Base Frequency (P) 3.7 GHz 3.6 GHz
Turbo Boost Frequency (P) 4.8 GHz 4.4 GHz
Total Cores 12 8
Total Threads 24 16
Bus Frequency 100 MHz 100 MHz
Multiplier 37x 36x
L1 Cache 64K (per core) 64K (per core)
L2 Cache 512K (per core) 512K (per core)
L3 Cache 64MB (shared) 32MB (shared)
Unlocked Multiplier Yes Yes


Transistors 4.15 billions 3.8 billions
Fabrication process 7 nm 7 nm
Socket AM4 AM4
TDP 105 W 65 W
Peak temperature 90°C 95°C

Memory Support

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


Official site AMD Ryzen 9 5900X official page AMD Ryzen 7 3700X official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 16

Cast your vote

Choose between two processors
114 (82.6%)
24 (17.4%)
Total votes: 138


So which CPU will you choose: AMD Ryzen 7 3700X or Ryzen 9 5900X?
BikenFish 22 January 2022 15:38
I currently own the 3700 and my motherboard x570 will support the new CPU. I can get a 5900x for 450.00 and I will sell my 3700x which has the box and new cooler to help with the cost. So for me, the extra speed for a few more years will be worth it. My current build is from 2019 so yeah I think it’s a great choice!
+8 Reply
Daniel 18 March 2022 15:34
Same here, but I'll probably wait until the next line of AMD processors come out so the 5900x gets way cheaper.
+7 Reply
Jon 14 April 2022 19:30
Daniel, I had a 2019 build as well. Sitting on a 3700x. The machine runs great. I will be exercising this same plan. I'd like to get a few more years out of this machine.
+9 Reply