IntelBX80684I78700K
AMDFD8370FRHKBOX

6 Cores, 12 Threads
@3.7GHz Coffee Lake (2017)

8 Cores, 8 Threads
@4.0GHz Piledriver (2012)

Real World Speed
Performance profile from 71,002 user samples
60,411 User Benchmarks
Best Bench: 126% Base clock 3.7 GHz, turbo 5 GHz (avg)
Worst Bench: 94% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 94% Great: 126%
SPEED RANK: 6th / 1100
Gaming
Gaming 110%
UFO
Desktop
Desktop 107%
UFO
Workstation
Workstation 97%
Nuclear submarine
10,591 User Benchmarks
Best Bench: 66% Base clock 5.1 GHz, turbo 5.05 GHz (avg)
Worst Bench: 48% Base clock 4.25 GHz, turbo 1.4 GHz (avg)
Poor: 48% Great: 66%
SPEED RANK: 246th / 1100
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
110 % Hugely faster effective speed.
+92%
57.4 %
SC Mixed
Avg. Single Core Mixed Speed
140 Pts Hugely faster single-core speed.
+81%
77.3 Pts
QC Mixed
Avg. Quad Core Mixed Speed
535 Pts Hugely faster quad-core speed.
+90%
281 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1092 Pts Hugely faster multi-core speed.
+124%
487 Pts
SC Mixed
OC Single Core Mixed Speed
157 Pts Hugely faster OC single-core speed.
+80%
87 Pts
QC Mixed
OC Quad Core Mixed Speed
624 Pts Hugely faster OC quad-core speed.
+90%
328 Pts
MC Mixed
OC Multi Core Mixed Speed
1259 Pts Hugely faster OC multi-core speed.
+122%
568 Pts
Market Share
Based on 8,479,018 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.02 % Insanely higher market share.
+2,133%
0.18 %
Value
Value For Money
105 % Much better value.
+56%
67.4 %
User Rating
UBM User Rating
144 % Hugely more popular.
+87%
77 %
Price
Price (score)
$330 $190 Much cheaper.
+42%
Age
Newest
6 Months Hugely more recent.
+86%
43 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.
+9%
4.3 GHz
SC Int
Single Core Integer Speed
154 Pts Much faster single-core int speed.
+63%
94.2 Pts
SC Float
Single Core Floating Point Speed
160 Pts Hugely faster single-core fp speed.
+98%
80.9 Pts
QC Int
Quad Core Integer Speed
612 Pts Much faster quad-core int speed.
+74%
352 Pts
QC Float
Quad Core Floating Point Speed
636 Pts Hugely faster quad-core fp speed.
+111%
301 Pts
MC Int
Multi Core Integer Speed
1158 Pts Hugely faster multi-core int speed.
+100%
579 Pts
MC Float
Multi Core Floating Point Speed
1334 Pts Hugely faster multi-core fp speed.
+168%
498 Pts
Series
CPU Architecture
Coffee Lake (2017) Piledriver (2012)
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]

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The FX-8370 is a top of the range black edition Vishera eight core processor based on AMD’s Piledriver architecture. It was launched in September 2014 and is both cheaper and faster than the FX-8350. The FX range offers high performance and this particular processor holds a world record for reaching an incredible 8.7 GHz when overclocked under lab conditions. For typical users however, the FX-8370 runs at 4.0/4.3 GHz (base/turbo) and typically hits 5.0 GHz when overclocked. Its effective speed is 83 which is currently only exceeded by AMD's 20% more expensive FX-9590 (scoring 85), making it relatively good value for money. Eight cores aren’t necessary for most applications, but things are changing and if you heavily rely on multi-threaded applications then the FX-8370 may be a good choice. [Dec '14 CPUPro]

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Processor Rankings (Price vs Performance) April 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.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $90
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $176AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $193SanDisk Extreme 16GB $18
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