IntelBX80684I78700K
IntelBX80684I79700K

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

8 Cores, 8 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

Real World Speed
Performance profile from 364,806 user samples
314,210 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.35 GHz (avg)
Worst Bench: 90% Base clock 3.7 GHz, turbo 0.45 GHz (avg)
Poor: 90% Great: 124%
SPEED RANK: 25th / 1173
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 94%
Nuclear submarine
50,596 User Benchmarks
Best Bench: 125% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 91% Base clock 3.6 GHz, turbo 1.4 GHz (avg)
Poor: 91% Great: 125%
SPEED RANK: 15th / 1173
Gaming
Gaming 113%
UFO
Desktop
Desktop 109%
UFO
Workstation
Workstation 96%
Nuclear submarine
Effective Speed
Effective CPU Speed
108 % 113 % Slightly faster effective speed.
+5%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts 143 Pts +4%
QC Mixed
Avg. Quad Core Mixed Speed
523 Pts 559 Pts Slightly faster quad-core speed.
+7%
MC Mixed
Avg. Multi Core Mixed Speed
1063 Pts +0% 1060 Pts
SC Mixed
OC Single Core Mixed Speed
155 Pts 156 Pts +1%
QC Mixed
OC Quad Core Mixed Speed
612 Pts 621 Pts +1%
MC Mixed
OC Multi Core Mixed Speed
1234 Pts +2% 1206 Pts
Market Share
Based on 18,633,488 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.25 % Hugely higher market share.
+118%
1.03 %
Value
Value For Money
101 % 105 % +5%
User Rating
UBM User Rating
158 % Hugely more popular.
+139%
66 %
Price
Price (score)
$350 +1% $355
Age
Newest
21 Months 9 Months Much more recent.
+57%
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
12 threads Much higher thread count.
+50%
8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz +3% 3.6 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz 4.9 GHz +4%
SC Int
Single Core Integer Speed
150 Pts 151 Pts +1%
SC Float
Single Core Floating Point Speed
159 Pts 163 Pts +3%
QC Int
Quad Core Integer Speed
599 Pts 600 Pts +0%
QC Float
Quad Core Floating Point Speed
636 Pts 650 Pts +2%
MC Int
Multi Core Integer Speed
1116 Pts 1140 Pts +2%
MC Float
Multi Core Floating Point Speed
1315 Pts +3% 1281 Pts
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 12 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 $374.00 - $385.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
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]

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Intel’s Core i7-9700K is an unlocked 9th generation CPU, released alongside the i5-9600K and the i9-9900K. The 9700K is an 8 core, 8 thread processor based on the third iteration of Intel’s 14nm Coffee Lake architecture, which sees an increase in the number of cores available to mainstream consumers, in line with AMD’s Ryzen 7 offerings. The 9700K features 12 MB of cache, a 95W TDP and Intel UHD graphics 630. And like the other 9th generation chips, it is compatible with Intel’s new Z390 chipset as well as last years Z370 chipset (with an updated BIOS). The 9700K has a base frequency of 3.6 GHz, rising to 4.6 GHz when all 8 cores are engaged and a single core boost frequency of 4.9 GHz (compared to 3.6 GHz, 4.7 GHz and 5.0 GHz for the flagship 9900K). This translates to similar single and quad core performance to the 9900K, but due to the higher number of threads, the 9900K has around a 50% higher multi-core benchmark than the 9700K. Currently most PC games do not engage more than 4 cores, so at $420 (15% cheaper than the 9900K), the 9700K offers better value for money to gamers. If instead, great multi-core performance is a necessity, at $290, the 8 core 16 thread Ryzen 7 2700X is a more prudent choice, with a 30% higher multi-core benchmark than the 9700K.  [Oct '18 CPUPro]

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Processor Rankings (Price vs Performance) July 2019 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.
  • 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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CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $248Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $78SanDisk Ultra Fit 32GB $12
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