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AMD Ryzen Threadripper Pro 3975WX vs Ryzen 9 5900X

We compared two desktop CPUs: the 3.5 GHz AMD Ryzen Threadripper Pro 3975WX with 32-cores against the 3.7 GHz Ryzen 9 5900X with 12-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 5900X and 3975WX
Advantages of AMD Ryzen Threadripper Pro 3975WX
  • Supports up to 2048 GB DDR4-3200 RAM
  • Has 20 more physical cores
  • Has 64 MB larger L3 cache size
Advantages of AMD Ryzen 9 5900X
  • Consumes up to 63% less energy than the Ryzen Threadripper Pro 3975WX – 105 vs 280 Watt
  • Unlocked multiplier
  • 31% faster in a single-core Geekbench v5 test - 1673 vs 1276 points
  • 14% higher Turbo Boost frequency (4.8 GHz vs 4.2 GHz)


Comparing the performance of CPUs in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)


Full technical specification of AMD Ryzen Threadripper Pro 3975WX and Ryzen 9 5900X


Vendor AMD AMD
Released July 14, 2020 October 8, 2020
Launch price - 549 USD
Type Desktop Desktop
Codename Zen 2 Zen 3
Socket sWRX8 AM4
Integrated GPU No No


Cores 32 12
Threads 64 24
Base Frequency 3.5 GHz 3.7 GHz
Turbo Boost Frequency 4.2 GHz 4.8 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 35x 37x
L1 Cache 96K (per core) 64K (per core)
L2 Cache 512K (per core) 512K (per core)
L3 Cache 128MB (shared) 64MB (shared)
Unlocked Multiplier No Yes


Fabrication process 7 nm 7 nm
TDP 280 W 105 W
Max. temperature 90°C 95°C

Memory support

Memory types DDR4-3200 DDR4-3200
Memory Size 2048 GB 128 GB
Max. Memory Channels 8 2
Max. Memory Bandwidth - 47.68 GB/s
ECC Support Yes Yes


Official site AMD Ryzen Threadripper Pro 3975WX official page AMD Ryzen 9 5900X official page
PCI Express Version 4.0 4.0
PCI Express Lanes 128 20

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So which CPU will you choose: AMD Ryzen 9 5900X or Threadripper Pro 3975WX?