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FPS Winner
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The Ryzen 9 5900X is a clear winner – it's at least 2x faster gaming CPU than the FX-8120 and it's also a better value for money, as it's only $181.97 more expensive!

Advantages of the Ryzen 9 5900X

  • At least 2x faster CPU for gaming
  • A better value for money for gaming
  • Consumes up to 16% less energy105 vs 125 Watts
  • Can execute more multi-threaded tasks simultaneously – 24 vs 8 threads

Advantages of the FX-8120

  • Up to 70% cheaper$78.02 vs $259.99
  • Can run games without a dedicated GPU as it has integrated graphics

Ryzen 9 5900X vs FX-8120 for Gaming

The CPU's performance in selected game and settings

Ryzen 9 5900X vs FX-8120 in My Games

The FPS you'll get in saved games, click on a game to change it

The FPS you'll get in saved games, click on a game to change it

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Synthetic Benchmarks

The Ryzen 9 5900X vs FX-8120 in synthetic CPU benchmarks

AMD Ryzen 9 5900X Logo

Ryzen 9 5900X

Nov 5th, 2020


Geekbench 6 Single-Core

2206

100%

Geekbench 6 Multi-Core

11922

100%

AMD FX-8120 Logo

FX-8120

Oct 12th, 2011


Geekbench 6 Single-Core

412

19%

Geekbench 6 Multi-Core

1528

13%

Performance Specifications

The Ryzen 9 5900X vs FX-8120 in core CPU performance specifications

AMD Ryzen 9 5900X Logo

Ryzen 9 5900X

Nov 5th, 2020


Cores

12-core

100%

L3 Cache

64 MB

100%


Base Frequency

3.7 GHz

100%

Turbo Frequency

4.8 GHz

100%

Max. DDR4 RAM Speed

3200 MHz

100%

AMD FX-8120 Logo

FX-8120

Oct 12th, 2011


Cores

8-core

67%

L3 Cache

8 MB

12%


Base Frequency

3.1 GHz

84%

Turbo Frequency

3.4 GHz

71%

Max. DDR3 RAM Speed

MHz

Specifications

Comparison of all specifications

AMD Ryzen 9 5900X Logo

Ryzen 9 5900X

Specifications

Comparison of all specifications

AMD FX-8120 Logo

FX-8120

Our users choose these builds when going for the Ryzen 9 5900X or FX-8120

Our users choose these builds when going for the Ryzen 9 5900X or FX-8120

Ryzen 9 5900X and FX-8120 vs Other CPUs

The most compared CPUs against the Ryzen 9 5900X and FX-8120

The most compared CPUs against the Ryzen 9 5900X and FX-8120

CPUs Compared for Gaming

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