IntelBX80684I78700K
AMDFD8350FRHKBOX

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

8 Cores, 8 Threads @4.0GHz, Piledriver.
Release date: Q4 2012.

Real World Speed
Performance profile from 254,640 user samples
143,298 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 92% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 92% Great: 124%
SPEED RANK: 8th / 1128
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 96%
Nuclear submarine
111,342 User Benchmarks
Best Bench: 62% Base clock 4.85 GHz, turbo 4.85 GHz (avg)
Worst Bench: 44% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 44% Great: 62%
SPEED RANK: 276th / 1128
Gaming
Gaming 55%
Gunboat
Desktop
Desktop 54%
Yacht
Workstation
Workstation 44%
Speed boat
Effective Speed
Effective CPU Speed
108 % Hugely faster effective speed.
+97%
55.1 %
SC Mixed
Avg. Single Core Mixed Speed
137 Pts Hugely faster single-core speed.
+87%
73.4 Pts
QC Mixed
Avg. Quad Core Mixed Speed
527 Pts Hugely faster quad-core speed.
+95%
270 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1083 Pts Hugely faster multi-core speed.
+129%
473 Pts
SC Mixed
OC Single Core Mixed Speed
155 Pts Hugely faster OC single-core speed.
+87%
82.7 Pts
QC Mixed
OC Quad Core Mixed Speed
609 Pts Hugely faster OC quad-core speed.
+96%
310 Pts
MC Mixed
OC Multi Core Mixed Speed
1242 Pts Hugely faster OC multi-core speed.
+128%
544 Pts
Market Share
Based on 10,962,969 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.73 % Hugely higher market share.
+168%
1.39 %
Value
Value For Money
99.1 % Slightly better value.
+11%
89.6 %
User Rating
UBM User Rating
149 % Hugely more popular.
+126%
66 %
Price
Price (score)
$370 $80 Much cheaper.
+78%
Age
Newest
11 Months Hugely more recent.
+85%
71 Months
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
12 threads Much higher thread count.
+50%
8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
3.7 GHz 4 GHz Slightly faster base frequency.
+8%
Turbo Clock
Turbo Clock Speed
4.7 GHz Slightly faster turbo frequency.
+12%
4.2 GHz
SC Int
Single Core Integer Speed
150 Pts Much faster single-core int speed.
+69%
88.7 Pts
SC Float
Single Core Floating Point Speed
159 Pts Hugely faster single-core fp speed.
+104%
78 Pts
QC Int
Quad Core Integer Speed
593 Pts Much faster quad-core int speed.
+80%
330 Pts
QC Float
Quad Core Floating Point Speed
632 Pts Hugely faster quad-core fp speed.
+120%
287 Pts
MC Int
Multi Core Integer Speed
1143 Pts Hugely faster multi-core int speed.
+106%
555 Pts
MC Float
Multi Core Floating Point Speed
1318 Pts Hugely faster multi-core fp speed.
+177%
476 Pts
Series
CPU Architecture
Coffee Lake Piledriver
Socket
Motherboard Socket
FCLGA1151 AM3+
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

In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The AMD is also cheaper but significantly more power hungry which counts strongly against it as a sever proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) September 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.

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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 $344Samsung 850 Evo 250GB $86
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $260Samsung 850 Evo 500GB $114
Intel Core i5-8600K $260AMD RX 480 $280Samsung 850 Pro 256GB $135
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $150SanDisk Extreme 64GB $80
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $899SanDisk Extreme 32GB $30
WD Blue 1TB (2012) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $160SanDisk Ultra Fit 32GB $11
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