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 376,185 user samples
322,768 User Benchmarks
Best Bench: 106% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 77% Base clock 3.7 GHz, turbo 0.95 GHz (avg)
Poor: 77% Great: 106%
SPEED RANK: 14th / 1182
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 79%
Battleship
53,417 User Benchmarks
Best Bench: 102% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 2.95 GHz (avg)
Poor: 76% Great: 102%
SPEED RANK: 19th / 1182
Gaming
Gaming 90%
Aircraft carrier
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed
91.1 % +1% 90 %
1-Core
Avg. Single Core Mixed Speed
137 Pts 137 Pts
2-Core
Avg. Dual Core Mixed Speed
270 Pts 271 Pts +0%
4-Core
Avg. Quad Core Mixed Speed
522 Pts 528 Pts +1%
8-Core
Avg. Octa Core Mixed Speed
847 Pts Slightly faster octa-core speed.
+13%
749 Pts
64-Core
Avg. Multi Core Mixed Speed
1062 Pts Much faster 64-core speed.
+40%
756 Pts
1-Core
OC Single Core Mixed Speed
155 Pts 155 Pts
2-Core
OC Dual Core Mixed Speed
308 Pts +0% 307 Pts
4-Core
OC Quad Core Mixed Speed
612 Pts +1% 606 Pts
8-Core
OC Octa Core Mixed Speed
989 Pts Slightly faster OC octa-core speed.
+13%
876 Pts
64-Core
OC Multi Core Mixed Speed
1231 Pts Much faster OC 64-core speed.
+39%
883 Pts
Market Share
Based on 19,360,478 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.09 % Hugely higher market share.
+95%
1.07 %
Value
Value For Money
86.2 % 94.8 % Slightly better value.
+10%
User Rating
UBM User Rating
115 % 129 % Slightly more popular.
+12%
Price
Price (score)
$340 $230 Much cheaper.
+32%
Age
Newest
22 Months 9 Months Much more recent.
+59%
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 the latest line-up of Intel’s 9th generation of unlocked CPUs based on their refreshed Coffee Lake 14nm architecture. This round of releases also includes the 8 core, 8 thread i7-9700K and the flagship 8 core, 16 thread i9-9900K, out of which the 9600K at USD $280 is the value leader. The 9600K supersedes last year’s similarly priced 6 core 8600K and out of the box operates at higher clocks: base 3.7 GHz vs 3.6 GHz, all core 4.3 GHz vs 4.1 GHz and single 4.6 GHz vs 4.3 GHz. The 9600K has a TDP of 95W and will require a large cooler to match. The new Z390 or last years Z370 chipset with a BIOS update are both supported. Intensive multi-threaded task masters would do better to spend a similar amount on the Ryzen 7 2700X, where an extra USD $10 buys 2 more cores and 10 more threads resulting in multi-core benchmarks 70% higher than for the 9600K. However, for the vast majority of users that undertake up to quad-core workloads, the 9600K offers very reasonable bang for your buck, and when fully overclocked, almost second to none performance for gamers. [Oct '18 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) August 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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 Frequently Asked Questions

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The Best.
CPUGPUSSD
AMD Ryzen 5 3600 $198Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
Intel Core i5-9600K $230Nvidia GTX 1060-6GB $270Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $233Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $195
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $78SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $695SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $80Corsair Vengeance LPX DDR4 3200 C16 2x8GB $82SanDisk Extreme 16GB $24
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