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

4 Cores, 8 Threads
@4.0GHz Skylake (2015)

Real World Speed
Performance profile from 194,290 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%
182,997 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 77% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 77% Great: 105%
SPEED RANK: 28th / 1052
Gaming 91%
Nuclear submarine
Desktop 92%
Nuclear submarine
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
57.4 % 90.8 % Much faster effective speed.
SC Mixed
Avg. Single Core Mixed Speed
77 Pts 128 Pts Much faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
281 Pts 444 Pts Much faster quad-core speed.
MC Mixed
Avg. Multi Core Mixed Speed
489 Pts 679 Pts Much faster multi-core speed.
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 531 Pts Much faster OC quad-core speed.
MC Mixed
OC Multi Core Mixed Speed
576 Pts 777 Pts Much faster OC multi-core speed.
Market Share
Based on 7,884,273 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.18 % 1.94 % Hugely higher market share.
Value For Money
77.7 % 87.4 % Slightly better value.
User Rating
UBM User Rating
78 % 94 % 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 8 threads
Manufacturing process
32 nm 14 nm Much newer manufacturing.
Base Clock
Base Clock Speed
4 GHz 4 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz +2% 4.2 GHz
SC Int
Single Core Integer Speed
94.9 Pts 142 Pts Much faster single-core int speed.
SC Float
Single Core Floating Point Speed
81.5 Pts 148 Pts Hugely faster single-core fp speed.
QC Int
Quad Core Integer Speed
348 Pts 522 Pts Much faster quad-core int speed.
QC Float
Quad Core Floating Point Speed
299 Pts 552 Pts Hugely faster quad-core fp speed.
MC Int
Multi Core Integer Speed
586 Pts 712 Pts Faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
500 Pts 817 Pts Much 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 Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [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.

 Frequently Asked Questions

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Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $131
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $198SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
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