8 Cores, 8 Threads
@4.0GHz Piledriver (2012)

4 Cores, 4 Threads
@3.5GHz Skylake (2015)

Real World Speed
Performance profile from 117,496 user samples
11,293 User Benchmarks
Best Bench: 66% Base clock 4.95 GHz, turbo 4.95 GHz (avg)
Worst Bench: 47% Base clock 4 GHz, turbo 2.65 GHz (avg)
Poor: 47% Great: 66%
SPEED RANK: 217th / 1052
Gaming 57%
Desktop 57%
Workstation 46%
106,203 User Benchmarks
Best Bench: 106% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 69% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 69% Great: 106%
SPEED RANK: 34th / 1052
Gaming 88%
Aircraft carrier
Desktop 86%
Aircraft carrier
Workstation 54%
Effective Speed
Effective CPU Speed
57.4 % 87.9 % Much faster effective speed.
SC Mixed
Avg. Single Core Mixed Speed
77 Pts 121 Pts Much faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
281 Pts 455 Pts Much faster quad-core speed.
MC Mixed
Avg. Multi Core Mixed Speed
489 Pts +4% 469 Pts
SC Mixed
OC Single Core Mixed Speed
87.8 Pts 145 Pts Much faster OC single-core speed.
QC Mixed
OC Quad Core Mixed Speed
329 Pts 557 Pts Much faster OC quad-core speed.
MC Mixed
OC Multi Core Mixed Speed
576 Pts +2% 565 Pts
Market Share
Based on 7,884,273 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.18 % 1.16 % Hugely higher market share.
Value For Money
77.7 % 97 % Better value.
User Rating
UBM User Rating
78 % 89 % Slightly more popular.
Price (score)
$130 Much cheaper.
42 Months 31 Months More recent.
Thermal Design Power (TDP)
125 Watts 91 Watts More energy efficient.
CPU Processing Cores
8 cores Hugely higher core count.
4 cores
CPU Processing Threads
8 threads Hugely higher thread count.
4 threads
Manufacturing process
32 nm 14 nm Much newer manufacturing.
Base Clock
Base Clock Speed
4 GHz Slightly faster base frequency.
3.5 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz Slightly faster turbo frequency.
3.9 GHz
SC Int
Single Core Integer Speed
94.9 Pts 140 Pts Much faster single-core int speed.
SC Float
Single Core Floating Point Speed
81.5 Pts 149 Pts Hugely faster single-core fp speed.
QC Int
Quad Core Integer Speed
348 Pts 545 Pts Much faster quad-core int speed.
QC Float
Quad Core Floating Point Speed
299 Pts 582 Pts Hugely faster quad-core fp speed.
MC Int
Multi Core Integer Speed
586 Pts Slightly faster multi-core int speed.
548 Pts
MC Float
Multi Core Floating Point Speed
500 Pts 583 Pts Faster multi-core fp speed.
CPU Architecture
Piledriver (2012) Skylake (2015)
Motherboard Socket
AM3+ FCLGA1151
Integrated Graphics
None HD 530

The FX-8370 is a top of the range black edition Vishera eight core processor based on AMD’s Piledriver architecture. It was launched in September 2014 and is both cheaper and faster than the FX-8350. The FX range offers high performance and this particular processor holds a world record for reaching an incredible 8.7 GHz when overclocked under lab conditions. For typical users however, the FX-8370 runs at 4.0/4.3 GHz (base/turbo) and typically hits 5.0 GHz when overclocked. Its effective speed is 83 which is currently only exceeded by AMD's 20% more expensive FX-9590 (scoring 85), making it relatively good value for money. Eight cores aren’t necessary for most applications, but things are changing and if you heavily rely on multi-threaded applications then the FX-8370 may be a good choice. [Dec '14 CPUPro]


The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]


Processor Rankings (Price vs Performance) March 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $131
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