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Intel
IntelBX80684I78700K

4 Cores, 4 Threads @3.2 GHz, Haswell.
Release date ≈ Q2 2014.

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

Real World Speed
Performance profile from 748,429 user samples
2,142 User Benchmarks
Best Bench: 81% Base clock 3.2 GHz
Worst Bench: 57% Base clock 3.2 GHz, turbo 1 GHz (avg)
Poor: 57% Great: 81%
SPEED RANK: 354th / 1468
Gaming
Gaming 73%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 55%
Gunboat
746,287 User Benchmarks
Best Bench: 100% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 167th / 1468
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 80%
Battleship
Effective Speed
Effective CPU Speed
73.2 % 88.4 % Faster effective speed.
+21%
Memory
Avg. Memory Latency
83.6 Pts 90.1 Pts Slightly lower memory latency.
+8%
1-Core
Avg. Single Core Speed
102 Pts 128 Pts Faster single-core speed.
+25%
2-Core
Avg. Dual Core Speed
197 Pts 249 Pts Faster dual-core speed.
+26%
4-Core
Avg. Quad Core Speed
363 Pts 466 Pts Faster quad-core speed.
+28%
8-Core
Avg. Octa Core Speed
371 Pts 770 Pts Hugely faster octa-core speed.
+108%
Memory
OC Memory Latency
93 Pts 96.5 Pts +4%
1-Core
OC Single Core Speed
114 Pts 148 Pts Faster OC single-core speed.
+30%
2-Core
OC Dual Core Speed
219 Pts 292 Pts Much faster OC dual-core speed.
+33%
4-Core
OC Quad Core Speed
411 Pts 558 Pts Much faster OC quad-core speed.
+36%
8-Core
OC Octa Core Speed
410 Pts 892 Pts Hugely faster OC octa-core speed.
+118%
Market Share
Based on 69,040,610 CPUs tested
Market Share
Market Share (trailing 30 days)
0.01 % 1.45 % Insanely higher market share.
+14,400%
Value
Value For Money
88.2 % 103 % Better value.
+17%
User Rating
UBM User Rating
51 % 82 % Much more popular.
+61%
Price
Price (score)
$141 Cheaper.
+12%
$160
Age
Newest
125+ Months 85 Months Much more recent.
+32%
64-Core
OC Multi Core Speed
411 Pts 1,147 Pts Hugely faster OC 64-core speed.
+179%
64-Core
Avg. Multi Core Speed
371 Pts 971 Pts Hugely faster 64-core speed.
+162%
Launch Date
Launch Date
Q2'14 Q4'17
Cache
Cache
6 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$213.00 - $224.00 N/A
Max Turbo Frequency
Max Turbo Frequency
3.9 GHz 4.70 GHz
Bus Speed
Bus Speed
5 GT/s DMI2 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
PCG 2013C PCG 2015C (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V DDR4-2666
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4600 Intel® UHD Graphics 630
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.2 GHz 1.20 GHz
Graphics Video Max Memory
Graphics Video Max Memory
2 GB 64 GB
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Revision
PCI Express Revision
Up to 3.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »

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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