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 166,289 user samples
156,048 User Benchmarks
Best Bench: 113% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 87% Base clock 4.2 GHz, turbo 1.7 GHz (avg)
Poor: 87% Great: 113%
SPEED RANK: 18th / 1089
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 73%
Battleship
10,241 User Benchmarks
Best Bench: 66% Base clock 5.1 GHz, turbo 5.05 GHz (avg)
Worst Bench: 47% Base clock 4.25 GHz, turbo 1.4 GHz (avg)
Poor: 47% Great: 66%
SPEED RANK: 239th / 1089
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
99.7 % Much faster effective speed.
+74%
57.4 %
SC Mixed
Avg. Single Core Mixed Speed
140 Pts Hugely faster single-core speed.
+81%
77.5 Pts
QC Mixed
Avg. Quad Core Mixed Speed
489 Pts Much faster quad-core speed.
+75%
280 Pts
MC Mixed
Avg. Multi Core Mixed Speed
741 Pts Much faster multi-core speed.
+52%
488 Pts
SC Mixed
OC Single Core Mixed Speed
155 Pts Much faster OC single-core speed.
+78%
87 Pts
QC Mixed
OC Quad Core Mixed Speed
566 Pts Much faster OC quad-core speed.
+73%
328 Pts
MC Mixed
OC Multi Core Mixed Speed
826 Pts Much faster OC multi-core speed.
+45%
568 Pts
Market Share
Based on 8,436,451 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.48 % Insanely higher market share.
+1,278%
0.18 %
Value
Value For Money
99.9 % Much better value.
+48%
67.4 %
User Rating
UBM User Rating
133 % Much more popular.
+68%
79 %
Price
Price (score)
$290 $190 Much cheaper.
+34%
Age
Newest
15 Months Much more recent.
+65%
43 Months
TDP
Thermal Design Power (TDP)
91 Watts More energy efficient.
+27%
125 Watts
Cores
CPU Processing Cores
4 cores 8 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
4.2 GHz +5% 4 GHz
Turbo Clock
Turbo Clock Speed
4.5 GHz +5% 4.3 GHz
SC Int
Single Core Integer Speed
152 Pts Much faster single-core int speed.
+61%
94.3 Pts
SC Float
Single Core Floating Point Speed
159 Pts Hugely faster single-core fp speed.
+97%
80.8 Pts
QC Int
Quad Core Integer Speed
548 Pts Much faster quad-core int speed.
+56%
351 Pts
QC Float
Quad Core Floating Point Speed
581 Pts Hugely faster quad-core fp speed.
+93%
301 Pts
MC Int
Multi Core Integer Speed
761 Pts Much faster multi-core int speed.
+31%
579 Pts
MC Float
Multi Core Floating Point Speed
873 Pts Much faster multi-core fp speed.
+76%
497 Pts
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) 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 $80
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $170AMD RX 480 $350Samsung 850 Pro 256GB $158
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $183SanDisk Extreme 64GB $70
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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