4 Cores, 4 Threads @3.6GHz, Bulldozer.
Release date: Q4 2011.


Release date ≈ Q3 2015.

Real World Speed
Performance profile from 26,471 user samples
20,888 User Benchmarks
Best Bench: 43% Base clock 4.4 GHz, turbo 4.4 GHz (avg)
Worst Bench: 24% Base clock 3.95 GHz, turbo 1.5 GHz (avg)
Poor: 24% Great: 43%
SPEED RANK: 592nd / 1206
Gaming 36%
Jet ski
Desktop 39%
Jet ski
Workstation 19%
5,583 User Benchmarks
Best Bench: 26% Base clock 2 GHz, turbo 2.4 GHz (avg)
Worst Bench: 16% Base clock 2 GHz, turbo 2.1 GHz (avg)
Poor: 16% Great: 26%
SPEED RANK: 865th / 1206
Gaming 23%
Desktop 24%
Workstation 12%
Tree trunk
Effective Speed
Effective CPU Speed
36.5 % Much faster effective speed.
22.7 %
Avg. Single Core Mixed Speed
60.4 Pts Much faster single-core speed.
36.3 Pts
Avg. Dual Core Mixed Speed
113 Pts Much faster dual-core speed.
70.1 Pts
Avg. Quad Core Mixed Speed
190 Pts Much faster quad-core speed.
121 Pts
Avg. Octa Core Mixed Speed
195 Pts Much faster octa-core speed.
124 Pts
OC Single Core Mixed Speed
70.5 Pts Much faster OC single-core speed.
41.3 Pts
OC Dual Core Mixed Speed
135 Pts Much faster OC dual-core speed.
82 Pts
OC Quad Core Mixed Speed
229 Pts Much faster OC quad-core speed.
146 Pts
OC Octa Core Mixed Speed
232 Pts Much faster OC octa-core speed.
146 Pts
Market Share
Based on 23,792,977 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.1 % Hugely higher market share.
0.04 %
User Rating
UBM User Rating
57 % Slightly more popular.
53 %
99 Months 51+ Months Much more recent.
OC Multi Core Mixed Speed
230 Pts Much faster OC 64-core speed.
146 Pts
Avg. Multi Core Mixed Speed
196 Pts Much faster 64-core speed.
124 Pts

The AMD FX-4100 is an inexpensive entry level quad-core processor. It was released in Q4 of 2011 and at the time was AMD’s budget chip on its latest Bulldozer architecture. Its base clock speed of 3.6 GHz boosts to 3.8 GHz in turbo mode and with appropriate cooling can be over-clocked to speeds of 4.9 GHz. Even though these numbers appear impressive, the real world effective speed only averages 59. This should be fine for general computing and even gaming when coupled with an appropriate GPU. It’s the FX-4100’s single-core performance which lets it down when compared to similarly priced Intel processors such as the Core i3-3225. Since the majority of daily computing relies single core performance typical desktop users will find better value elsewhere. [Nov '14 CPUPro]


Processor Rankings (Price vs Performance) January 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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