IntelBX80677I57600K
IntelBX80684I78700K

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

6 Cores, 12 Threads
@3.7GHz Coffee Lake (2017)

Real World Speed
Performance profile from 119,063 user samples
55,933 User Benchmarks
Best Bench: 112% Base clock 3.8 GHz, turbo 5.15 GHz (avg)
Worst Bench: 77% Base clock 3.8 GHz, turbo 0.8 GHz (avg)
Poor: 77% Great: 112%
SPEED RANK: 23rd / 1100
Gaming
Gaming 95%
Nuclear submarine
Desktop
Desktop 93%
Nuclear submarine
Workstation
Workstation 58%
Gunboat
63,130 User Benchmarks
Best Bench: 126% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 96% Base clock 3.7 GHz, turbo 1.8 GHz (avg)
Poor: 96% Great: 126%
SPEED RANK: 6th / 1100
Gaming
Gaming 111%
UFO
Desktop
Desktop 108%
UFO
Workstation
Workstation 98%
Nuclear submarine
Effective Speed
Effective CPU Speed
95.1 % 111 % Faster effective speed.
+17%
SC Mixed
Avg. Single Core Mixed Speed
131 Pts 141 Pts Slightly faster single-core speed.
+8%
QC Mixed
Avg. Quad Core Mixed Speed
493 Pts 542 Pts Slightly faster quad-core speed.
+10%
MC Mixed
Avg. Multi Core Mixed Speed
501 Pts 1110 Pts Hugely faster multi-core speed.
+122%
SC Mixed
OC Single Core Mixed Speed
152 Pts 157 Pts +3%
QC Mixed
OC Quad Core Mixed Speed
586 Pts 622 Pts Slightly faster OC quad-core speed.
+6%
MC Mixed
OC Multi Core Mixed Speed
584 Pts 1260 Pts Hugely faster OC multi-core speed.
+116%
Market Share
Based on 8,450,868 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.9 % 4 % Hugely higher market share.
+344%
Value
Value For Money
110 % +4% 106 %
User Rating
UBM User Rating
104 % 144 % Much more popular.
+38%
Price
Price (score)
$195 Much cheaper.
+41%
$330
Age
Newest
15 Months 6 Months Much more recent.
+60%
TDP
Thermal Design Power (TDP)
91 Watts +4% 95 Watts
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
4 threads 12 threads Hugely higher thread count.
+200%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.8 GHz +3% 3.7 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.7 GHz Slightly faster turbo frequency.
+12%
SC Int
Single Core Integer Speed
147 Pts 154 Pts +5%
SC Float
Single Core Floating Point Speed
156 Pts 160 Pts +3%
QC Int
Quad Core Integer Speed
571 Pts 611 Pts Slightly faster quad-core int speed.
+7%
QC Float
Quad Core Floating Point Speed
612 Pts 637 Pts +4%
MC Int
Multi Core Integer Speed
571 Pts 1160 Pts Hugely faster multi-core int speed.
+103%
MC Float
Multi Core Floating Point Speed
614 Pts 1331 Pts Hugely faster multi-core fp speed.
+117%
Graphics
Integrated Graphics
HD 630 UHD 630
Series
CPU Architecture
Kaby Lake (2017) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Series
CPU Architecture
Kaby Lake (2017) Coffee Lake (2017)
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
HD 630 UHD 630
Launch Date
Launch Date
Q1'17 Q4'17
Cache
Cache
6 MB 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$242.00 - $243.00 N/A
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (65W) PCG 2015C (130W)
Memory Types
Memory Types
DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 630 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350.00 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.20 GHz
vPro Tech
Intel® vPro™ Technology ‡
No Yes
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
No Yes
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

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 i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

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Processor Rankings (Price vs Performance) April 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.
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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.

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  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - 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 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $170AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Ultra Fit 32GB $12
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