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 100,220 user samples
90,944 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 85% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 85% Great: 111%
SPEED RANK: 15th / 980
Gaming
Gaming 99%
Nuclear submarine
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 73%
Battleship
9,276 User Benchmarks
Best Bench: 66% Base clock 5 GHz, turbo 4.95 GHz (avg)
Worst Bench: 47% Base clock 0.9 GHz, turbo 0.9 GHz (avg)
Poor: 47% Great: 66%
SPEED RANK: 204th / 980
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
98.4 % Much faster effective speed.
+72%
57.2 % -72%
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Much faster single-core speed.
+80%
76.7 Pts -80%
QC Mixed
Avg. Quad Core Mixed Speed
483 Pts Much faster quad-core speed.
+72%
280 Pts -72%
MC Mixed
Avg. Multi Core Mixed Speed
731 Pts Much faster multi-core speed.
+50%
486 Pts -50%
SC Mixed
OC Single Core Mixed Speed
154 Pts Much faster OC single-core speed.
+79%
86.2 Pts -79%
QC Mixed
OC Quad Core Mixed Speed
562 Pts Much faster OC quad-core speed.
+73%
325 Pts -73%
MC Mixed
OC Multi Core Mixed Speed
819 Pts Much faster OC multi-core speed.
+45%
565 Pts -45%
Market Share
Based on 5,968,318 CPUs tested.
Market Share
Market Share (trailing 30 days)
3.53 % Insanely higher market share.
+1,861%
0.18 % -1,861%
Value
Value For Money
99.9 % Much better value.
+35%
74.1 % -35%
User Rating
UBM User Rating
163 % Hugely more popular.
+114%
76 % -114%
Price
Price (score)
$280 -48% $146 Much cheaper.
+48%
Age
Newest
10 Months Much more recent.
+74%
38 Months -74%
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
151 Pts Much faster single-core int speed.
+62%
93.1 Pts -62%
SC Float
Single Core Floating Point Speed
158 Pts Hugely faster single-core fp speed.
+97%
80.2 Pts -97%
QC Int
Quad Core Integer Speed
547 Pts Much faster quad-core int speed.
+57%
348 Pts -57%
QC Float
Quad Core Floating Point Speed
578 Pts Hugely faster quad-core fp speed.
+93%
300 Pts -93%
MC Int
Multi Core Integer Speed
757 Pts Much faster multi-core int speed.
+33%
570 Pts -33%
MC Float
Multi Core Floating Point Speed
864 Pts Much faster multi-core fp speed.
+76%
492 Pts -76%
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) November 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 $280Nvidia GTX 1070 $410Samsung 850 Evo 250GB $90
AMD Ryzen 7 1700 $270AMD RX 480 $240Samsung 850 Evo 500GB $140
Intel Core i5-7600K $180Nvidia GTX 1060-6GB $260Samsung 850 Pro 256GB $110
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $192SanDisk Extreme 64GB $30
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $1,050SanDisk Extreme 32GB $22
Seagate Barracuda 7200.14 1TB $52Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $10
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