IntelBX80677I77700K
AMDFD8350FRHKBOX

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

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

Real World Speed
Performance profile from 75,365 user samples
20,605 User Benchmarks
Best Bench: 114% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 86% Base clock 4.2 GHz, turbo 0.8 GHz (avg)
Poor: 86% Great: 114%
SPEED RANK: 2nd / 956
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
UFO
Workstation
Workstation 74%
Battleship
54,760 User Benchmarks
Best Bench: 64% Base clock 4 GHz, turbo 3.95 GHz (avg)
Worst Bench: 50% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 50% Great: 64%
SPEED RANK: 182nd / 956
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 57%
Gunboat
Workstation
Workstation 46%
Yacht
Effective Speed
Effective CPU Speed
100 % Much faster effective speed.
+74%
57.4 % -74%
SC Mixed
Avg. Single Core Mixed Speed
139 Pts Hugely faster single-core speed.
+81%
77 Pts -81%
QC Mixed
Avg. Quad Core Mixed Speed
492 Pts Much faster quad-core speed.
+75%
281 Pts -75%
MC Mixed
Avg. Multi Core Mixed Speed
750 Pts Much faster multi-core speed.
+53%
490 Pts -53%
SC Mixed
OC Single Core Mixed Speed
155 Pts Hugely faster OC single-core speed.
+82%
85.3 Pts -82%
QC Mixed
OC Quad Core Mixed Speed
571 Pts Much faster OC quad-core speed.
+78%
321 Pts -78%
MC Mixed
OC Multi Core Mixed Speed
839 Pts Much faster OC multi-core speed.
+49%
562 Pts -49%
Market Share
Based on 3,466,869 CPUs tested.
Market Share
Market Share (trailing 30 days)
4.2 % Hugely higher market share.
+91%
2.2 % -91%
Value
Value For Money
97.7 % Better value.
+21%
81 % -21%
User Rating
UBM User Rating
129 % Hugely more popular.
+87%
69 % -87%
Price
Price (score)
$310 -62% $116 Much cheaper.
+62%
Age
Newest
3 Months Hugely more recent.
+94%
54 Months -94%
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 Slightly faster turbo frequency.
+7%
4.2 GHz -7%
SC Int
Single Core Integer Speed
151 Pts Much faster single-core int speed.
+64%
92 Pts -64%
SC Float
Single Core Floating Point Speed
159 Pts Hugely faster single-core fp speed.
+100%
79.6 Pts -100%
QC Int
Quad Core Integer Speed
553 Pts Much faster quad-core int speed.
+61%
343 Pts -61%
QC Float
Quad Core Floating Point Speed
588 Pts Hugely faster quad-core fp speed.
+100%
294 Pts -100%
MC Int
Multi Core Integer Speed
777 Pts Much faster multi-core int speed.
+36%
573 Pts -36%
MC Float
Multi Core Floating Point Speed
879 Pts Much faster multi-core fp speed.
+80%
489 Pts -80%
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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In terms of raw single-core performance the flagship AMD FX-8350 is lagging behind intel's processor line-up by over two generations. The PassMark Single Thread scores for the i5-2500K vs the FX-8350 are 1863 to 1520 which shows that in terms of raw per-core processing the FX-8350 is lagging the two year old i5 by 23%. Where the AMD FX makes up is on multi-core performance, with a score of 9156 vs 6745, the AMD leads the Intel 2500K by 36% making it the far more capable multi-threaded server orientated performer. The AMD is also cheaper but significantly more power hungry which counts strongly against it as a sever proposition. The FX-8350 could be a good fit for specific server use cases but for general consumer use, which is single and dual core intensive, Intel's two year old i5-2500K delivers better performance. [May '13 CPUPro]

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Processor Rankings (Price vs Performance) April 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 $310Nvidia GTX 1070 $330Samsung 850 Evo 250GB $106
Intel Pentium G4560 $60AMD RX 480 $220Samsung 850 Pro 256GB $140
Intel Core i5-7600K $229Nvidia GTX 1060-6GB $219Samsung 850 Evo 500GB $170
HDDRAMUSB
Seagate Barracuda 1TB (2016) $50Corsair Vengeance LPX DDR4 3000 C15 2x8GB $130SanDisk Extreme 32GB $22
Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $700SanDisk Extreme 64GB $35
Seagate Barracuda 7200.14 1TB $46Corsair Vengeance LPX DDR4 3200 C16 2x8GB $115SanDisk Ultra Fit 32GB $9
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