IntelBX80684I78700K
IntelBX80684I59600K

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

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6 Cores, 6 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2018.

Real World Speed
Performance profile from 402,896 user samples
340,510 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 75% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 75% Great: 107%
SPEED RANK: 14th / 1184
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 78%
Battleship
62,386 User Benchmarks
Best Bench: 107% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 80% Base clock 3.7 GHz, turbo 2.3 GHz (avg)
Poor: 80% Great: 107%
SPEED RANK: 13th / 1184
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed
91.9 % 93 % +1%
1-Core
Avg. Single Core Mixed Speed
137 Pts 137 Pts
2-Core
Avg. Dual Core Mixed Speed
269 Pts 272 Pts +1%
4-Core
Avg. Quad Core Mixed Speed
518 Pts 531 Pts +3%
8-Core
Avg. Octa Core Mixed Speed
843 Pts Slightly faster octa-core speed.
+12%
752 Pts
64-Core
Avg. Multi Core Mixed Speed
1053 Pts Much faster 64-core speed.
+39%
760 Pts
1-Core
OC Single Core Mixed Speed
155 Pts 156 Pts +1%
2-Core
OC Dual Core Mixed Speed
308 Pts 309 Pts +0%
4-Core
OC Quad Core Mixed Speed
606 Pts 610 Pts +1%
8-Core
OC Octa Core Mixed Speed
980 Pts Slightly faster OC octa-core speed.
+11%
884 Pts
64-Core
OC Multi Core Mixed Speed
1217 Pts Much faster OC 64-core speed.
+38%
880 Pts
Market Share
Based on 20,952,371 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.03 % Hugely higher market share.
+121%
0.92 %
Value
Value For Money
85.9 % 97.1 % Slightly better value.
+13%
User Rating
UBM User Rating
135 % 154 % Slightly more popular.
+14%
Price
Price (score)
$355 $238 Much cheaper.
+33%
Age
Newest
24 Months 11 Months Much more recent.
+54%
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+100%
6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz 3.7 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz +2% 4.6 GHz
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Launch Date
Launch Date
Q4'17 Q4'18
Cache
Cache
12 MB 9 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Recommended Price
Recommended Customer Price
N/A $262.00 - $263.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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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]

MORE DETAILS

The hex-core i5-9600K is third in Intel’s line-up of 9th generation Coffee Lake CPUs. It has a TDP of 95W and requires an aftermarket cooler ($30+). The 9600K was designed to be overclocked. Once this is enabled in the BIOS (requires a Z-series motherbaord), the 9600K runs 10% faster. In terms of performance, the i5-9600K is almost unbeatable for desktop users and it has sufficient multi-core performance to handle all but the most demanding workstation tasks. For Heavy workstation users the Ryzen 3000 series offers great 64-core performance at a very competitive price. For example the overclocked Ryzen 3600 is approximately 13% worse for gaming and desktop (sub octa-core tasks) but it is 27% faster for 64-core processing. At stock clocks the i5-9600K is around 8% slower than Intel’s flagship i9-9900K but when both are overclocked, the 9600K closes the gaming gap to within two or three percent. Considering that the 9900K is the fastest gaming processor available, and almost twice the price of the 9600K, this is no small feat. The i5-9600K is aimed squarely at gamers who are not willing to compromise on performance but don't want to pay more than they need to. [Oct '18 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 2019 CPU Rankings.

We calculate effective speed which measures real world performance for typical gamers and desktop users. 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.
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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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 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i5-9400F $140Nvidia GTX 1660 $210Samsung 850 Evo 250GB $55
Intel Core i5-9600K $238Nvidia GTX 1660-Ti $270Samsung 850 Evo 500GB $107
Intel Core i7-9700K $288Nvidia RTX 2060S (Super) $430Samsung 850 Pro 256GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $65SanDisk Extreme 64GB $88
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $603SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $70SanDisk Ultra Fit 32GB $14
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