4 Cores, 8 Threads
@3.5GHz Haswell (2013)

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

Real World Speed
Performance profile from 9566 user samples
4490 User Benchmarks
Best Bench: 110% Base clock 3.5 GHz
Worst Bench: 26% Base clock 3.5 GHz
Worst: 26% Best: 110%
SPEED RANK: 8th / 851
Desktop 91%
Nuclear submarine
Gaming 92%
Nuclear submarine
Workstation 62%
Battle cruiser
5076 User Benchmarks
Best Bench: 80% Base clock 5.2 GHz
Worst Bench: 20% Base clock 4 GHz
Worst: 20% Best: 80%
SPEED RANK: 151st / 851
Desktop 64%
Battle cruiser
Gaming 67%
Workstation 49%
Effective Speed
Effective CPU Speed
91.5 % Much faster effective speed.
63.9 % -43%
SC Mixed
Avg. Single Core Mixed Speed
114 Pts Much faster single-core speed.
77.4 Pts -47%
QC Mixed
Avg. Quad Core Mixed Speed
414 Pts Much faster quad-core speed.
293 Pts -41%
MC Mixed
Avg. Multi Core Mixed Speed
625 Pts Faster multi-core speed.
529 Pts -18%
SC Mixed
OC Single Core Mixed Speed
129 Pts Much faster OC single-core speed.
87.1 Pts -48%
QC Mixed
OC Quad Core Mixed Speed
497 Pts Much faster OC quad-core speed.
335 Pts -48%
MC Mixed
OC Multi Core Mixed Speed
716 Pts Faster OC multi-core speed.
607 Pts -18%
Value For Money
68.6 % Slightly better value.
61.7 % -11%
User Rating
UBM User Rating
74 % +1% 73 % -1%
Price (score)
$350 -53% $164 Much cheaper.
29 Months Slightly more recent.
34 Months -15%
Thermal Design Power (TDP)
84 Watts Much more energy efficient.
125 Watts -33%
CPU Processing Cores
4 cores -100% 8 cores Hugely higher core count.
CPU Processing Threads
8 threads 0% 8 threads 0%
Manufacturing process
22 nm Much newer manufacturing.
32 nm -31%
Base Clock
Base Clock Speed
3.5 GHz -14% 4 GHz Slightly faster base frequency.
Turbo Clock
Turbo Clock Speed
3.9 GHz -8% 4.2 GHz Slightly faster turbo frequency.
SC Int
Single Core Integer Speed
127 Pts Much faster single-core int speed.
92.8 Pts -37%
SC Float
Single Core Floating Point Speed
131 Pts Much faster single-core fp speed.
81.7 Pts -60%
QC Int
Quad Core Integer Speed
482 Pts Much faster quad-core int speed.
355 Pts -36%
QC Float
Quad Core Floating Point Speed
501 Pts Much faster quad-core fp speed.
315 Pts -59%
MC Int
Multi Core Integer Speed
650 Pts Slightly faster multi-core int speed.
594 Pts -9%
MC Float
Multi Core Floating Point Speed
744 Pts Much faster multi-core fp speed.
563 Pts -32%
CPU Architecture
Haswell (2013) Piledriver (2012)
Motherboard Socket
FCLGA1150 AM3+
Integrated Graphics
HD 4600 None

The Core i7-4770K is Intel's fourth generation (codename Haswell) flagship processor in the hugely successful Core range. It's not surprising that the 4770K sets a new Real World Performance index record, besting its predecessor by just over 9%. The 4770K also tops out in the remainder of our benchmarks setting new highs of 10020 and 2164 in the PassMark and PassMark Single Thread tests which equates to roughly an 8% overall performance increase over the 3770K. With a TDP of 84 watts, power consumption has increased slightly over the 3770K. The new Core i7-4770K demonstrates around an 8% performance increase over its predecessor the 3770K but it costs 12% more. As a result, at least until prices drop, this processor represents marginally worse value for money than the 3770K. [Jun '13 CPUPro]


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]


Processor User Rankings (Charts) August 2015 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. 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]

Group Test Results

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 each of the components in your PC and then compare your results to other users with exactly the same hardware. You can quickly size up your PC and identify hardware problems or bottlenecks.

Benchmark of the month

How it works

  • - Download and run UserBenchMark (UBM)
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - Drive benchmarks include: read, write and mixed IO.
  • - CPU benchmarks include: integer, floating and string.
  • - GPU benchmarks include: DX9 and DX10 3D performance.
  • - Reports are generated and presented on
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the highest voted in class
  • - Share your opinion by voting
Custom PC Builder (Start a new build) Compare component prices, popularity, speed and value for money.

PC Builder will help you build your perfect PC by clearly presenting relevant performance statistics together with price, compatibility and popularity data.

Frequently Asked Questions


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The Best.
SanDisk Extreme 64GB $36Samsung 850 Pro 256GB $130Intel Core i7-4790K $322Barracuda 7200.14 1TB $48Nvidia GTX 970 $320
SanDisk Extreme 16GB $16Samsung 850 Evo 250GB $90Intel Core i5-4690K $232WD Black 1TB (2013) $70Nvidia GTX 980 Ti $659
SanDisk Extreme 32GB $22Samsung 850 Evo 500GB $156Intel Pentium G3258 $64Seagate Desktop SSHD 1TB $67AMD R9 270X $185
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