IntelBX80662I56600K
AMDFD8370FRHKBOX

4 Cores, 4 Threads @3.5GHz, Skylake.
Release date: Q3 2015.

8 Cores, 8 Threads @4.0GHz, Piledriver.
Release date: Q3 2014.

Real World Speed
Performance profile from 165,228 user samples
149,009 User Benchmarks
Best Bench: 103% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 63% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 63% Great: 103%
SPEED RANK: 57th / 1144
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 51%
Yacht
16,219 User Benchmarks
Best Bench: 63% Base clock 4.95 GHz, turbo 4.95 GHz (avg)
Worst Bench: 46% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 46% Great: 63%
SPEED RANK: 277th / 1144
Gaming
Gaming 55%
Gunboat
Desktop
Desktop 55%
Gunboat
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed
84.5 % Much faster effective speed.
+52%
55.4 %
SC Mixed
Avg. Single Core Mixed Speed
118 Pts Much faster single-core speed.
+58%
74.9 Pts
QC Mixed
Avg. Quad Core Mixed Speed
435 Pts Much faster quad-core speed.
+61%
270 Pts
MC Mixed
Avg. Multi Core Mixed Speed
447 Pts 473 Pts Slightly faster multi-core speed.
+6%
SC Mixed
OC Single Core Mixed Speed
140 Pts Much faster OC single-core speed.
+68%
83.4 Pts
QC Mixed
OC Quad Core Mixed Speed
538 Pts Much faster OC quad-core speed.
+73%
311 Pts
MC Mixed
OC Multi Core Mixed Speed
543 Pts 543 Pts
Market Share
Based on 13,862,054 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.08 % Hugely higher market share.
+575%
0.16 %
Value
Value For Money
91.1 % Much better value.
+31%
69.4 %
User Rating
UBM User Rating
80 % More popular.
+25%
64 %
Price
Price (score)
$238 $160 Much cheaper.
+33%
Age
Newest
41 Months More recent.
+21%
52 Months
TDP
Thermal Design Power (TDP)
91 Watts More energy efficient.
+27%
125 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.5 GHz 4 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.3 GHz Slightly faster turbo frequency.
+10%
SC Int
Single Core Integer Speed
135 Pts Much faster single-core int speed.
+52%
88.9 Pts
SC Float
Single Core Floating Point Speed
146 Pts Hugely faster single-core fp speed.
+85%
79 Pts
QC Int
Quad Core Integer Speed
511 Pts Much faster quad-core int speed.
+55%
329 Pts
QC Float
Quad Core Floating Point Speed
577 Pts Hugely faster quad-core fp speed.
+98%
292 Pts
MC Int
Multi Core Integer Speed
514 Pts 559 Pts Slightly faster multi-core int speed.
+9%
MC Float
Multi Core Floating Point Speed
579 Pts Faster multi-core fp speed.
+22%
474 Pts
Series
CPU Architecture
Skylake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
HD 530 None
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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]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) January 2019 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]

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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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
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Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
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WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $133SanDisk Ultra Fit 32GB $12
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