Intel
IntelBX80684I78700K
  

4 Cores, 8 Threads @3.7 GHz, Haswell.
Release date ≈ Q4 2014.

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

Real World Speed
Performance profile from 748,194 user samples
1,907 User Benchmarks
Best Bench: 82% Base clock 3.7 GHz, turbo 3.65 GHz (avg)
Worst Bench: 66% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 66% Great: 82%
SPEED RANK: 301st / 1442
Gaming
Gaming 75%
Battleship
Desktop
Desktop 78%
Battleship
Workstation
Workstation 62%
Destroyer
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: 148th / 1442
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 80%
Battleship
Effective Speed
Effective CPU Speed
75.2 % 88.4 % Faster effective speed.
+17%
Memory
Avg. Memory Latency
83.1 Pts 90.1 Pts Slightly lower memory latency.
+8%
1-Core
Avg. Single Core Speed
101 Pts 128 Pts Faster single-core speed.
+27%
2-Core
Avg. Dual Core Speed
201 Pts 249 Pts Faster dual-core speed.
+24%
4-Core
Avg. Quad Core Speed
365 Pts 466 Pts Faster quad-core speed.
+28%
8-Core
Avg. Octa Core Speed
548 Pts 770 Pts Much faster octa-core speed.
+41%
Memory
OC Memory Latency
91.4 Pts 96.5 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed
111 Pts 148 Pts Much faster OC single-core speed.
+33%
2-Core
OC Dual Core Speed
224 Pts 292 Pts Much faster OC dual-core speed.
+30%
4-Core
OC Quad Core Speed
430 Pts 558 Pts Faster OC quad-core speed.
+30%
8-Core
OC Octa Core Speed
602 Pts 892 Pts Much faster OC octa-core speed.
+48%
Market Share
Based on 67,694,257 CPUs tested
Market Share
Market Share (trailing 30 days)
0.01 % 1.48 % Insanely higher market share.
+14,700%
User Rating
UBM User Rating
50 % 81 % Much more popular.
+62%
Age
Newest
113+ Months 78 Months Much more recent.
+31%
64-Core
OC Multi Core Speed
603 Pts 1147 Pts Hugely faster OC 64-core speed.
+90%
64-Core
Avg. Multi Core Speed
557 Pts 971 Pts Much faster 64-core speed.
+74%
Launch Date
Launch Date
Q3'14 Q4'17
Cache
Cache
10 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions
AVX 2.0 SSE4.1/4.2, AVX2
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$372.00 N/A
Max Turbo Frequency
Max Turbo Frequency
3.8 GHz 4.70 GHz
Bus Speed
Bus Speed
0 GT/s QPI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
768 GB 64 GB
Memory Types
Memory Types
DDR4 1333/1600/1866/2133 DDR4-2666
Memory Channels
Max # of Memory Channels
4 2
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Processor Graphics
Processor Graphics ‡
None Intel® UHD Graphics 630
Package Size
Package Size
52.5mm x 45.0 mm 37.5mm x 37.5mm
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
x4, x8, x16 Up to 1x16 or 2x8 or 1x8+2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 16

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) April 2024 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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 Frequently Asked Questions

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Intel Core i5-12400F $131Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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