IntelBX80677I77700K
AMDFD8370FRHKBOX

4 Cores, 8 Threads
@4.2GHz Kaby Lake (2017)

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

Real World Speed
Performance profile from 61,197 user samples
55,023 User Benchmarks
Best Bench: 112% Base clock 4.2 GHz
Worst Bench: 89% Base clock 4.2 GHz, turbo 1.8 GHz (avg)
Poor: 89% Great: 112%
SPEED RANK: 5th / 966
Gaming
Gaming 100%
UFO
Desktop
Desktop 101%
UFO
Workstation
Workstation 74%
Battleship
6,174 User Benchmarks
Best Bench: 63% Base clock 4 GHz, turbo 3.95 GHz (avg)
Worst Bench: 46% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 46% Great: 63%
SPEED RANK: 194th / 966
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 56%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
100 % Much faster effective speed.
+76%
57.1 % -76%
SC Mixed
Avg. Single Core Mixed Speed
140 Pts Hugely faster single-core speed.
+83%
76.5 Pts -83%
QC Mixed
Avg. Quad Core Mixed Speed
494 Pts Much faster quad-core speed.
+76%
280 Pts -76%
MC Mixed
Avg. Multi Core Mixed Speed
747 Pts Much faster multi-core speed.
+54%
486 Pts -54%
SC Mixed
OC Single Core Mixed Speed
153 Pts Much faster OC single-core speed.
+79%
85.7 Pts -79%
QC Mixed
OC Quad Core Mixed Speed
567 Pts Much faster OC quad-core speed.
+80%
315 Pts -80%
MC Mixed
OC Multi Core Mixed Speed
825 Pts Much faster OC multi-core speed.
+50%
549 Pts -50%
Market Share
Based on 4,449,043 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.24 % Insanely higher market share.
+1,596%
0.25 % -1,596%
Value
Value For Money
98.3 % Much better value.
+31%
75.3 % -31%
User Rating
UBM User Rating
149 % Hugely more popular.
+94%
77 % -94%
Price
Price (score)
$309 -55% $140 Much cheaper.
+55%
Age
Newest
6 Months Hugely more recent.
+82%
34 Months -82%
TDP
Thermal Design Power (TDP)
91 Watts More energy efficient.
+27%
125 Watts -27%
Cores
CPU Processing Cores
4 cores -100% 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
8 threads 0% 8 threads 0%
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm -56%
Base Clock
Base Clock Speed
4.2 GHz +5% 4 GHz -5%
Turbo Clock
Turbo Clock Speed
4.5 GHz +5% 4.3 GHz -5%
SC Int
Single Core Integer Speed
150 Pts Much faster single-core int speed.
+62%
92.4 Pts -62%
SC Float
Single Core Floating Point Speed
157 Pts Hugely faster single-core fp speed.
+98%
79.1 Pts -98%
QC Int
Quad Core Integer Speed
552 Pts Much faster quad-core int speed.
+63%
339 Pts -63%
QC Float
Quad Core Floating Point Speed
585 Pts Hugely faster quad-core fp speed.
+101%
291 Pts -101%
MC Int
Multi Core Integer Speed
765 Pts Much faster multi-core int speed.
+37%
560 Pts -37%
MC Float
Multi Core Floating Point Speed
871 Pts Hugely faster multi-core fp speed.
+81%
481 Pts -81%
Series
CPU Architecture
Kaby Lake (2017) Piledriver (2012)
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
HD 630 None
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The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '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) July 2017 CPU Rankings.

Welcome to our desktop CPU comparison. We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by price to yield a value for money rating which is geared towards gamers. Calculated values don't always paint the whole picture so we check them against hundreds of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top CPUs. [CPUPro]

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 i7-7700K $309Nvidia GTX 1070 $390Samsung 850 Evo 250GB $96
AMD Ryzen 7 1700 $270AMD RX 480 $379Samsung 850 Pro 256GB $120
Intel Core i5-7600K $235Nvidia GTX 1060-6GB $33Samsung 850 Evo 500GB $162
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $83G.SKILL Trident Z DDR4 3200 C14 4x16GB $714SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $40HyperX Fury DDR4 2133 C14 2x8GB $140SanDisk Ultra Fit 32GB $13
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