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

Real World Speed
Performance profile from 25,178 user samples
25,077 User Benchmarks
Best Bench: 61% Base clock 3.6 GHz, turbo 3.55 GHz (avg)
Worst Bench: 42% Base clock 3.6 GHz, turbo 2.95 GHz (avg)
Poor: 42% Great: 61%
SPEED RANK: 578th / 1276
Gaming 55%
Desktop 59%
Workstation 39%
Jet ski
101 User Benchmarks
Best Bench: 39% Base clock 3.9 GHz
Worst Bench: 16% Base clock 2.8 GHz, turbo 2.8 GHz (avg)
Poor: 16% Great: 39%
SPEED RANK: 1136th / 1276
Gaming 33%
Sail boat
Desktop 37%
Jet ski
Workstation 21%
Effective Speed
Effective CPU Speed
55.3 % Much faster effective speed.
32.5 %
Avg. Memory Latency
78.2 Pts Much lower memory latency.
57.8 Pts
Avg. Single Core Mixed Speed
60.5 Pts Hugely faster single-core speed.
30.6 Pts
Avg. Dual Core Mixed Speed
112 Pts Hugely faster dual-core speed.
43.7 Pts
Avg. Quad Core Mixed Speed
189 Pts Hugely faster quad-core speed.
44.8 Pts
Avg. Octa Core Mixed Speed
193 Pts Hugely faster octa-core speed.
45.6 Pts
OC Memory Latency
85.5 Pts Lower OC memory latency.
69.9 Pts
OC Single Core Mixed Speed
72 Pts Hugely faster OC single-core speed.
39.9 Pts
OC Dual Core Mixed Speed
136 Pts Hugely faster OC dual-core speed.
55 Pts
OC Quad Core Mixed Speed
233 Pts Hugely faster OC quad-core speed.
55.7 Pts
OC Octa Core Mixed Speed
234 Pts Hugely faster OC octa-core speed.
55.6 Pts
Market Share
Based on 38,991,552 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.07 % Insanely higher market share.
0 %
User Rating
UBM User Rating
52 % +4% 50 %
111 Months 83+ Months More recent.
OC Multi Core Mixed Speed
234 Pts Hugely faster OC 64-core speed.
56.2 Pts
Avg. Multi Core Mixed Speed
195 Pts Hugely faster 64-core speed.
46.6 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]


The Pentium 4 3.8GHZ is Godly in terms of CLock speeds. but before 2005 intel and amd were competing because of the GHZ WAR. where companies rushed to get 4 GHZ but today the low amount of cache and the low amount of transisters makes it a intel celeron N3350 Level of peformance [Jul '19 Jayblue873]


Processor Rankings (Price vs Performance) January 2021 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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How it works

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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
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  • - See speed test results from other users.
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