IntelBX80684I78700K
AMDYD170XBCAEWOF

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

8 Cores, 16 Threads @3.4GHz, Zen.
Release date: Q1 2017.

Real World Speed
Performance profile from 175,556 user samples
141,174 User Benchmarks
Best Bench: 125% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 90% Base clock 3.7 GHz, turbo 1.65 GHz (avg)
Poor: 90% Great: 125%
SPEED RANK: 10th / 1129
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 96%
Nuclear submarine
34,382 User Benchmarks
Best Bench: 99% Base clock 3.8 GHz, turbo 4.15 GHz (avg)
Worst Bench: 76% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Poor: 76% Great: 99%
SPEED RANK: 36th / 1129
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 95%
Nuclear submarine
Effective Speed
Effective CPU Speed
108 % Faster effective speed.
+22%
88.4 %
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Much faster single-core speed.
+31%
105 Pts
QC Mixed
Avg. Quad Core Mixed Speed
525 Pts Faster quad-core speed.
+27%
412 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1085 Pts 1167 Pts Slightly faster multi-core speed.
+8%
SC Mixed
OC Single Core Mixed Speed
155 Pts Much faster OC single-core speed.
+34%
116 Pts
QC Mixed
OC Quad Core Mixed Speed
616 Pts Much faster OC quad-core speed.
+32%
467 Pts
MC Mixed
OC Multi Core Mixed Speed
1248 Pts 1322 Pts Slightly faster OC multi-core speed.
+6%
Market Share
Based on 11,488,738 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.78 % Hugely higher market share.
+583%
0.7 %
Value
Value For Money
99 % 99.2 % +0%
User Rating
UBM User Rating
156 % Much more popular.
+46%
107 %
Price
Price (score)
$370 $215 Much cheaper.
+42%
Age
Newest
12 Months Much more recent.
+37%
19 Months
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 16 threads Much higher thread count.
+33%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz Slightly faster base frequency.
+9%
3.4 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Faster turbo frequency.
+24%
3.8 GHz
SC Int
Single Core Integer Speed
151 Pts Much faster single-core int speed.
+35%
112 Pts
SC Float
Single Core Floating Point Speed
160 Pts Much faster single-core fp speed.
+31%
122 Pts
QC Int
Quad Core Integer Speed
598 Pts Much faster quad-core int speed.
+34%
446 Pts
QC Float
Quad Core Floating Point Speed
638 Pts Much faster quad-core fp speed.
+32%
485 Pts
MC Int
Multi Core Integer Speed
1150 Pts 1279 Pts Slightly faster multi-core int speed.
+11%
MC Float
Multi Core Floating Point Speed
1323 Pts 1333 Pts +1%
Series
CPU Architecture
Coffee Lake Zen
Socket
Motherboard Socket
FCLGA1151 AM4
Graphics
Integrated Graphics
UHD 630 None
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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]

MORE DETAILS

The AMD Ryzen 7 1700X isn't due for release until next week but two of our users has already submitted benchmarks. Comparing the quad and single core scores from our samples shows a relative 4.3% boost on the single core score so it’s possible that turbo wasn’t fully engaged (12% turbo boost expected). These preliminary results are seriously impressive as they put Zen’s IPC between 0% and 9% below Intel’s Kaby Lake. Even in the worst case scenario these results are still impressive. Comparing Intel’s $1,000 6900K and the 1700X shows that AMD delivers comparable performance for half the price! A shake-up of the CPU market will unfold as Zen rolls out. If Ryzen CPUs can overclock to 4.6+ GHz they will likely dominate the entire market putting a very welcome end to the monotonous tick-tock of recent years. [Feb '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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]

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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.
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

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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $115
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
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