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 78,944 user samples
73,104 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 88% Base clock 4.2 GHz, turbo 1.1 GHz (avg)
Poor: 88% Great: 111%
SPEED RANK: 7th / 970
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 74%
Battleship
5,840 User Benchmarks
Best Bench: 65% Base clock 4.4 GHz, turbo 4.35 GHz (avg)
Worst Bench: 50% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 50% Great: 65%
SPEED RANK: 190th / 970
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
99.8 % Much faster effective speed.
+73%
57.8 % -73%
SC Mixed
Avg. Single Core Mixed Speed
139 Pts Much faster single-core speed.
+80%
77.4 Pts -80%
QC Mixed
Avg. Quad Core Mixed Speed
491 Pts Much faster quad-core speed.
+73%
283 Pts -73%
MC Mixed
Avg. Multi Core Mixed Speed
745 Pts Much faster multi-core speed.
+51%
492 Pts -51%
SC Mixed
OC Single Core Mixed Speed
153 Pts Much faster OC single-core speed.
+78%
85.8 Pts -78%
QC Mixed
OC Quad Core Mixed Speed
565 Pts Much faster OC quad-core speed.
+74%
325 Pts -74%
MC Mixed
OC Multi Core Mixed Speed
820 Pts Much faster OC multi-core speed.
+47%
557 Pts -47%
Market Share
Based on 5,095,848 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.12 % Insanely higher market share.
+1,862%
0.21 % -1,862%
Value
Value For Money
95.8 % Better value.
+25%
76.7 % -25%
User Rating
UBM User Rating
157 % Hugely more popular.
+104%
77 % -104%
Price
Price (score)
$325 -58% $137 Much cheaper.
+58%
Age
Newest
8 Months Much more recent.
+78%
36 Months -78%
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
148 Pts Much faster single-core int speed.
+60%
92.4 Pts -60%
SC Float
Single Core Floating Point Speed
157 Pts Hugely faster single-core fp speed.
+99%
78.9 Pts -99%
QC Int
Quad Core Integer Speed
548 Pts Much faster quad-core int speed.
+58%
346 Pts -58%
QC Float
Quad Core Floating Point Speed
579 Pts Hugely faster quad-core fp speed.
+94%
298 Pts -94%
MC Int
Multi Core Integer Speed
759 Pts Much faster multi-core int speed.
+34%
567 Pts -34%
MC Float
Multi Core Floating Point Speed
863 Pts Much faster multi-core fp speed.
+78%
485 Pts -78%
Series
CPU Architecture
Kaby Lake (2017) Piledriver (2012)
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
HD 630 None
ADVERTISEMENT

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]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) September 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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-7700K $325Nvidia GTX 1070 $410Samsung 850 Evo 250GB $95
AMD Ryzen 7 1700 $270AMD RX 480 $350Samsung 850 Pro 256GB $122
Intel Core i5-7600K $230Nvidia GTX 1060-6GB $265Samsung 850 Evo 500GB $149
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45G.SKILL Trident Z DDR4 3200 C14 4x16GB $724SanDisk Extreme 64GB $33
Seagate Barracuda 3TB (2016) $77Corsair Vengeance LPX DDR4 3000 C15 2x8GB $152SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $56HyperX Fury DDR4 2133 C14 2x8GB $144SanDisk Extreme 16GB $20
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback