IntelBX80662I56600K
IntelBX80646I54590
Real World Speed
Performance profile from 113,061 user samples
92,672 User Benchmarks
Best Bench: 107% Base clock 3.5 GHz, turbo 4.8 GHz (avg)
Worst Bench: 71% Base clock 3.5 GHz, turbo 0.95 GHz (avg)
Poor: 71% Great: 107%
SPEED RANK: 27th / 980
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 54%
Yacht
20,389 User Benchmarks
Best Bench: 80% Base clock 3.3 GHz, turbo 3.7 GHz (avg)
Worst Bench: 53% Base clock 3.3 GHz, turbo 0.55 GHz (avg)
Poor: 53% Great: 80%
SPEED RANK: 90th / 980
Gaming
Gaming 73%
Battleship
Desktop
Desktop 71%
Battleship
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed
89 % Faster effective speed.
+23%
72.5 % -23%
SC Mixed
Avg. Single Core Mixed Speed
122 Pts Faster single-core speed.
+21%
101 Pts -21%
QC Mixed
Avg. Quad Core Mixed Speed
462 Pts Faster quad-core speed.
+24%
374 Pts -24%
MC Mixed
Avg. Multi Core Mixed Speed
474 Pts Faster multi-core speed.
+24%
383 Pts -24%
SC Mixed
OC Single Core Mixed Speed
143 Pts Much faster OC single-core speed.
+30%
110 Pts -30%
QC Mixed
OC Quad Core Mixed Speed
562 Pts Much faster OC quad-core speed.
+34%
418 Pts -34%
MC Mixed
OC Multi Core Mixed Speed
564 Pts Much faster OC multi-core speed.
+34%
421 Pts -34%
Market Share
Based on 5,968,318 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.61 % Hugely higher market share.
+229%
0.49 % -229%
Value
Value For Money
97.3 % Much better value.
+33%
73 % -33%
User Rating
UBM User Rating
106 % Much more popular.
+63%
65 % -63%
Price
Price (score)
$230 Cheaper.
+20%
$286 -20%
Age
Newest
27 Months Much more recent.
+32%
40 Months -32%
TDP
Thermal Design Power (TDP)
91 Watts -8% 84 Watts Slightly more energy efficient.
+8%
Cores
CPU Processing Cores
4 cores 0% 4 cores 0%
Threads
CPU Processing Threads
4 threads 0% 4 threads 0%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm -36%
Base Clock
Base Clock Speed
3.5 GHz Slightly faster base frequency.
+6%
3.3 GHz -6%
Turbo Clock
Turbo Clock Speed
3.9 GHz Slightly faster turbo frequency.
+5%
3.7 GHz -5%
SC Int
Single Core Integer Speed
139 Pts Faster single-core int speed.
+28%
109 Pts -28%
SC Float
Single Core Floating Point Speed
147 Pts Much faster single-core fp speed.
+32%
111 Pts -32%
QC Int
Quad Core Integer Speed
547 Pts Much faster quad-core int speed.
+31%
417 Pts -31%
QC Float
Quad Core Floating Point Speed
581 Pts Much faster quad-core fp speed.
+39%
419 Pts -39%
MC Int
Multi Core Integer Speed
548 Pts Much faster multi-core int speed.
+32%
415 Pts -32%
MC Float
Multi Core Floating Point Speed
583 Pts Much faster multi-core fp speed.
+39%
419 Pts -39%
Series
CPU Architecture
Skylake (2015) Haswell (2013)
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
HD 530 HD 4600
Launch Date
Launch Date
Q3'15 Q2'14
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $192.00 - $202.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2013D
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Memory Bandwidth
Max Memory Bandwidth
34.1 GB/s 25.6 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 530 Intel® HD Graphics 4600
Graphics Output
Graphics Output
eDP/DP/HDMI/DVI eDP/DP/HDMI/VGA
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Graphics and IMC Lithography
Graphics and IMC Lithography
14 nm 22 nm
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
3.0 Up to 3.0

More specs » More specs »
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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]

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The Intel Core i5-4590 is a slightly upgraded version of the i5-4570. The two processors are identical apart from a 100 MHz increase in base and turbo frequencies. Needless to say the two processors have almost identical effective speeds which is a little disappointing as Intel has simply re-released a near identical product. From a value for money perspective the 4590 does fare reasonably well although it probably has more multi-core horsepower than most use cases demand. For the majority of users, at stock clocks, the G3258 provides comparable performance but with a few simple BIOS adjustments the G3258 can be clocked up to 4.3 GHz where, even at half the price, it destroys the i5-4570 in single and dual core workloads. [Sep '14 CPUPro]

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Processor Rankings (Price vs Performance) November 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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.

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CPUGPUSSD
Intel Core i7-7700K $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $270AMD RX 480 $240Samsung 850 Evo 500GB $140
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $260Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $192SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $10
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