IntelBX80677I57600K
IntelBX80662I76700K

4 Cores, 4 Threads
@3.8GHz Kaby Lake (2017)

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

Real World Speed
Performance profile from 237,479 user samples
46,229 User Benchmarks
Best Bench: 112% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 73% Base clock 3.8 GHz, turbo 0.8 GHz (avg)
Poor: 73% Great: 112%
SPEED RANK: 22nd / 985
Gaming
Gaming 95%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
191,250 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 105%
SPEED RANK: 27th / 985
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
95 % +5% 90.8 %
SC Mixed
Avg. Single Core Mixed Speed
131 Pts +2% 128 Pts
QC Mixed
Avg. Quad Core Mixed Speed
492 Pts Slightly faster quad-core speed.
+11%
444 Pts
MC Mixed
Avg. Multi Core Mixed Speed
504 Pts 679 Pts Much faster multi-core speed.
+35%
SC Mixed
OC Single Core Mixed Speed
152 Pts Slightly faster OC single-core speed.
+6%
144 Pts
QC Mixed
OC Quad Core Mixed Speed
588 Pts Slightly faster OC quad-core speed.
+10%
536 Pts
MC Mixed
OC Multi Core Mixed Speed
592 Pts 770 Pts Much faster OC multi-core speed.
+30%
Market Share
Based on 7,455,169 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.96 % 1.93 % Hugely higher market share.
+101%
Value
Value For Money
105 % Better value.
+21%
86.3 %
User Rating
UBM User Rating
102 % Slightly more popular.
+9%
94 %
Price
Price (score)
$225 Much cheaper.
+33%
$334
Age
Newest
13 Months Much more recent.
+57%
30 Months
TDP
Thermal Design Power (TDP)
91 Watts 91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.8 GHz 4 GHz Slightly faster base frequency.
+5%
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.2 GHz
SC Int
Single Core Integer Speed
148 Pts +5% 141 Pts
SC Float
Single Core Floating Point Speed
156 Pts Slightly faster single-core fp speed.
+6%
147 Pts
QC Int
Quad Core Integer Speed
569 Pts Slightly faster quad-core int speed.
+9%
523 Pts
QC Float
Quad Core Floating Point Speed
609 Pts Slightly faster quad-core fp speed.
+11%
550 Pts
MC Int
Multi Core Integer Speed
573 Pts 712 Pts Faster multi-core int speed.
+24%
MC Float
Multi Core Floating Point Speed
616 Pts 809 Pts Much faster multi-core fp speed.
+31%
Graphics
Integrated Graphics
HD 630 HD 530
Series
CPU Architecture
Kaby Lake (2017) Skylake (2015)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Series
CPU Architecture
Kaby Lake (2017) Skylake (2015)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 HD 530
Launch Date
Launch Date
Q1'17 Q3'15
Cache
Cache
6 MB 8 MB SmartCache
Recommended Price
Recommended Customer Price
$242.00 - $243.00 $339.00 - $350.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz

More specs » More specs »
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The i5-7600K targets high end gamers, it sits just behind the flagship i7-7700K in Intel’s Kaby Lake lineup. The 7600K will likely be the most popular gaming CPU of 2017 (some competition from AMD’s upcoming Zen/Ryzen CPUs, would be very welcome). Comparing the 7600K and 6600K shows that the two processors are very closely matched and comparing the 7600K vs the hyper-threaded 7700K highlights the relative strength of the 7700K for workstation performance. There are no significant architectural differences between Kaby Lake and Skylake so, when fully overclocked, the two generations should perform similarly but Kaby Lake offers faster base clocks, improved speed shift technology which helps CPU responsiveness, and better integrated graphics[Jan '17 CPUPro]

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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]

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Processor Rankings (Price vs Performance) February 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.

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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $88
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $146
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $185SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $975SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $206SanDisk Extreme 16GB $18
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