Intel
IntelBX80684I78700K

4 Cores, 8 Threads @2.8 GHz, Bloomfield.
Release date ≤ Q4 2013.

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

Real World Speed
Performance profile from 183,108 user samples
11,052 User Benchmarks
Best Bench: 65% Base clock 2.8 GHz, turbo 2.75 GHz (avg)
Worst Bench: 36% Base clock 2.8 GHz
Poor: 36% Great: 65%
SPEED RANK: 340th / 1137
Gaming
Gaming 49%
Yacht
Desktop
Desktop 50%
Yacht
Workstation
Workstation 35%
Jet ski
172,056 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.3 GHz (avg)
Worst Bench: 94% Base clock 3.7 GHz, turbo 4.05 GHz (avg)
Poor: 94% Great: 124%
SPEED RANK: 12th / 1137
Gaming
Gaming 109%
UFO
Desktop
Desktop 106%
UFO
Workstation
Workstation 96%
Nuclear submarine
Effective Speed
Effective CPU Speed
49.1 % 109 % Hugely faster effective speed.
+122%
SC Mixed
Avg. Single Core Mixed Speed
71.6 Pts 138 Pts Hugely faster single-core speed.
+93%
QC Mixed
Avg. Quad Core Mixed Speed
238 Pts 529 Pts Hugely faster quad-core speed.
+122%
MC Mixed
Avg. Multi Core Mixed Speed
347 Pts 1094 Pts Hugely faster multi-core speed.
+215%
SC Mixed
OC Single Core Mixed Speed
93.3 Pts 155 Pts Much faster OC single-core speed.
+66%
QC Mixed
OC Quad Core Mixed Speed
322 Pts 613 Pts Hugely faster OC quad-core speed.
+90%
MC Mixed
OC Multi Core Mixed Speed
458 Pts 1247 Pts Hugely faster OC multi-core speed.
+172%
Market Share
Based on 12,150,305 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.15 % 3.71 % Insanely higher market share.
+2,373%
Value
Value For Money
43.9 % 101 % Hugely better value.
+129%
User Rating
UBM User Rating
53 % 155 % Hugely more popular.
+192%
Price
Price (score)
$393 $359 Slightly cheaper.
+9%
Age
Newest
59+ Months 13 Months Much more recent.
+78%
SC Int
Single Core Integer Speed
88.9 Pts 151 Pts Much faster single-core int speed.
+70%
SC Float
Single Core Floating Point Speed
95.9 Pts 160 Pts Much faster single-core fp speed.
+67%
QC Int
Quad Core Integer Speed
314 Pts 599 Pts Hugely faster quad-core int speed.
+91%
QC Float
Quad Core Floating Point Speed
340 Pts 634 Pts Hugely faster quad-core fp speed.
+86%
MC Int
Multi Core Integer Speed
440 Pts 1147 Pts Hugely faster multi-core int speed.
+161%
MC Float
Multi Core Floating Point Speed
473 Pts 1322 Pts Hugely faster multi-core fp speed.
+179%
Launch Date
Launch Date
Q1'10 Q4'17
Cache
Cache
8 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.2 SSE4.1/4.2, AVX2
Lithography
Lithography
45 nm 14 nm
Recommended Price
Recommended Customer Price
$305.00 N/A
Bus Speed
Bus Speed
4.8 GT/s QPI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
24 GB 64 GB
Memory Types
Memory Types
DDR3 800/1066 DDR4-2666
Memory Channels
Max # of Memory Channels
3 2
Package Size
Package Size
42.5mm x 45.0mm 37.5mm x 37.5mm
Thermal Monitoring Technologies
Thermal Monitoring Technologies
No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology
1.0 2.0
AES New Instructions
Intel® AES New Instructions
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes

More specs » More specs »
ADVERTISEMENT

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

Processor Rankings (Price vs Performance) November 2018 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]

ADVERTISEMENT

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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $359Nvidia GTX 1070 $330Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $130Nvidia GTX 1060-6GB $243Samsung 850 Evo 500GB $102
Intel Core i5-8600K $237AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback