IntelBX80662I76700K
AMDFD8350FRHKBOX

4 Cores, 8 Threads
@4.0GHz Skylake (2015)

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

Real World Speed
Performance profile from 293,129 user samples
191,250 User Benchmarks
Best Bench: 105% Base clock 4 GHz, turbo 4.9 GHz (avg)
Worst Bench: 75% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 75% Great: 105%
SPEED RANK: 27th / 985
Gaming
Gaming 91%
Nuclear submarine
Desktop
Desktop 92%
Nuclear submarine
Workstation
Workstation 67%
Battle cruiser
101,879 User Benchmarks
Best Bench: 64% Base clock 4.65 GHz, turbo 4.6 GHz (avg)
Worst Bench: 47% Base clock 4 GHz, turbo 1.35 GHz (avg)
Poor: 47% Great: 64%
SPEED RANK: 210th / 985
Gaming
Gaming 57%
Gunboat
Desktop
Desktop 56%
Gunboat
Workstation
Workstation 45%
Speed boat
Effective Speed
Effective CPU Speed
90.8 % Much faster effective speed.
+60%
56.7 %
SC Mixed
Avg. Single Core Mixed Speed
128 Pts Much faster single-core speed.
+68%
76 Pts
QC Mixed
Avg. Quad Core Mixed Speed
444 Pts Much faster quad-core speed.
+60%
278 Pts
MC Mixed
Avg. Multi Core Mixed Speed
679 Pts Much faster multi-core speed.
+42%
478 Pts
SC Mixed
OC Single Core Mixed Speed
144 Pts Much faster OC single-core speed.
+71%
84.2 Pts
QC Mixed
OC Quad Core Mixed Speed
536 Pts Much faster OC quad-core speed.
+70%
315 Pts
MC Mixed
OC Multi Core Mixed Speed
770 Pts Much faster OC multi-core speed.
+39%
552 Pts
Market Share
Based on 7,397,866 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.17 % Higher market share.
+24%
1.75 %
Value
Value For Money
86.3 % Slightly better value.
+9%
79.2 %
User Rating
UBM User Rating
94 % More popular.
+24%
76 %
Price
Price (score)
$334 $119 Much cheaper.
+64%
Age
Newest
30 Months Much more recent.
+53%
64 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 GHz 4 GHz
Turbo Clock
Turbo Clock Speed
4.2 GHz 4.2 GHz
SC Int
Single Core Integer Speed
141 Pts Much faster single-core int speed.
+55%
90.8 Pts
SC Float
Single Core Floating Point Speed
147 Pts Hugely faster single-core fp speed.
+87%
78.4 Pts
QC Int
Quad Core Integer Speed
523 Pts Much faster quad-core int speed.
+54%
339 Pts
QC Float
Quad Core Floating Point Speed
550 Pts Hugely faster quad-core fp speed.
+90%
289 Pts
MC Int
Multi Core Integer Speed
712 Pts Faster multi-core int speed.
+28%
557 Pts
MC Float
Multi Core Floating Point Speed
809 Pts Much faster multi-core fp speed.
+69%
480 Pts
Series
CPU Architecture
Skylake (2015) Piledriver (2012)
Socket
Motherboard Socket
FCLGA1151 AM3+
Graphics
Integrated Graphics
HD 530 None
ADVERTISEMENT

The Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

MORE DETAILS

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]

MORE DETAILS

Processor Rankings (Price vs Performance) February 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]

ADVERTISEMENT

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $430Samsung 850 Evo 250GB $87
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $285Samsung 850 Evo 500GB $146
AMD Ryzen 5 1600 $170AMD RX 480 $400Samsung 850 Pro 256GB $125
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $180SanDisk Extreme 64GB $50
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $200SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback