IntelBX80662I56600K
AMDFD8350FRHKBOX

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

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

Real World Speed
Performance profile from 242,452 user samples
124,806 User Benchmarks
Best Bench: 106% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 67% Base clock 3.5 GHz, turbo 0.75 GHz (avg)
Poor: 67% Great: 106%
SPEED RANK: 39th / 1110
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 53%
Yacht
117,646 User Benchmarks
Best Bench: 65% Base clock 4.8 GHz, turbo 4.8 GHz (avg)
Worst Bench: 47% Base clock 4.2 GHz, turbo 1.4 GHz (avg)
Poor: 47% Great: 65%
SPEED RANK: 251st / 1110
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 56%
Gunboat
Workstation
Workstation 45%
Yacht
Effective Speed
Effective CPU Speed
87.8 % Much faster effective speed.
+55%
56.8 %
SC Mixed
Avg. Single Core Mixed Speed
121 Pts Much faster single-core speed.
+59%
76 Pts
QC Mixed
Avg. Quad Core Mixed Speed
455 Pts Much faster quad-core speed.
+63%
279 Pts
MC Mixed
Avg. Multi Core Mixed Speed
467 Pts 482 Pts +3%
SC Mixed
OC Single Core Mixed Speed
144 Pts Much faster OC single-core speed.
+69%
85.2 Pts
QC Mixed
OC Quad Core Mixed Speed
558 Pts Much faster OC quad-core speed.
+75%
318 Pts
MC Mixed
OC Multi Core Mixed Speed
562 Pts +1% 557 Pts
Market Share
Based on 9,363,584 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.14 % 1.56 % Much higher market share.
+37%
Value
Value For Money
97.3 % Slightly better value.
+13%
86.4 %
User Rating
UBM User Rating
67 % Slightly more popular.
+10%
61 %
Price
Price (score)
$222 $95 Much cheaper.
+57%
Age
Newest
34 Months Much more recent.
+50%
68 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 4.2 GHz Slightly faster turbo frequency.
+8%
SC Int
Single Core Integer Speed
140 Pts Much faster single-core int speed.
+53%
91.3 Pts
SC Float
Single Core Floating Point Speed
149 Pts Hugely faster single-core fp speed.
+88%
79.2 Pts
QC Int
Quad Core Integer Speed
542 Pts Much faster quad-core int speed.
+59%
340 Pts
QC Float
Quad Core Floating Point Speed
583 Pts Hugely faster quad-core fp speed.
+99%
293 Pts
MC Int
Multi Core Integer Speed
543 Pts 563 Pts +4%
MC Float
Multi Core Floating Point Speed
586 Pts Faster multi-core fp speed.
+21%
485 Pts
Series
CPU Architecture
Skylake (2015) Piledriver (2012)
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

In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The AMD is also cheaper but significantly more power hungry which counts strongly against it as a sever proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) June 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]

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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 userbenchmark.com.
  • - 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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CPUGPUSSD
Intel Core i7-8700K $320Nvidia GTX 1070 $413Samsung 850 Evo 250GB $90
AMD Ryzen 5 1600 $175Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $138
Intel Core i5-8600K $222AMD RX 480 $280Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $177SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $911SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $226SanDisk Ultra Fit 32GB $12
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