IntelBX80684I78700K
Intel

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

  

2 Cores, 4 Threads @2.9 GHz, Broadwell.
Release date ≈ Q1 2015.

Real World Speed
Performance profile from 497,339 user samples
497,019 User Benchmarks
Best Bench: 104% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 80% Base clock 3.7 GHz, turbo 0.9 GHz (avg)
Poor: 80% Great: 104%
SPEED RANK: 24th / 1272
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 95%
Nuclear submarine
Workstation
Workstation 85%
Aircraft carrier
320 User Benchmarks
Best Bench: 66% Base clock 2.9 GHz, turbo 3.3 GHz (avg)
Worst Bench: 39% Base clock 2.9 GHz
Poor: 39% Great: 66%
SPEED RANK: 532nd / 1272
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 65%
Battle cruiser
Workstation
Workstation 42%
Speed boat
Effective Speed
Effective CPU Speed
93.5 % Much faster effective speed.
+63%
57.4 %
Memory
Avg. Memory Latency
92.4 Pts Lower memory latency.
+21%
76.3 Pts
1-Core
Avg. Single Core Mixed Speed
135 Pts Much faster single-core speed.
+56%
86.7 Pts
2-Core
Avg. Dual Core Mixed Speed
265 Pts Much faster dual-core speed.
+73%
153 Pts
4-Core
Avg. Quad Core Mixed Speed
509 Pts Hugely faster quad-core speed.
+127%
224 Pts
8-Core
Avg. Octa Core Mixed Speed
824 Pts Hugely faster octa-core speed.
+260%
229 Pts
Memory
OC Memory Latency
97.6 Pts Slightly lower OC memory latency.
+10%
89.1 Pts
1-Core
OC Single Core Mixed Speed
154 Pts Much faster OC single-core speed.
+50%
103 Pts
2-Core
OC Dual Core Mixed Speed
307 Pts Much faster OC dual-core speed.
+61%
191 Pts
4-Core
OC Quad Core Mixed Speed
607 Pts Hugely faster OC quad-core speed.
+128%
266 Pts
8-Core
OC Octa Core Mixed Speed
973 Pts Hugely faster OC octa-core speed.
+266%
266 Pts
Market Share
Based on 34,717,289 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.47 % Insanely higher market share.
+∞%
0 %
User Rating
UBM User Rating
159 % Hugely more popular.
+212%
51 %
Age
Newest
36 Months Much more recent.
+46%
67+ Months
64-Core
OC Multi Core Mixed Speed
1208 Pts Hugely faster OC 64-core speed.
+352%
267 Pts
64-Core
Avg. Multi Core Mixed Speed
1026 Pts Hugely faster 64-core speed.
+344%
231 Pts
Launch Date
Launch Date
Q4'17 Q1'15
Cache
Cache
12 MB 3 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $315.00
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 3.3 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 16 GB
Memory Types
Memory Types
DDR4-2666 DDR3L 1333/1600, LPDDR3 1600/1866
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® Iris™ Graphics 6100
Graphics Base Frequency
Graphics Base Frequency
350 MHz 300 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.1 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 16 GB
Package Size
Package Size
37.5mm x 37.5mm 40mm x24mm x 1.3mm
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 4x1, 2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 12

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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Processor Rankings (Price vs Performance) October 2020 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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HDDRAMUSB
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