2 Cores, 2 Threads
@2.33GHz Core (2006)

6 Cores, 6 Threads
@3.5GHz Piledriver (2012)

Real World Speed
Performance profile from 3870 user samples
406 User Benchmarks
Best Bench: 39% Base clock 3.35 GHz
Worst Bench: 10% Base clock 2.35 GHz
Worst: 10% Best: 39%
SPEED RANK: 666th / 867
Desktop 26%
Gaming 20%
Workstation 10%
Tree trunk
3464 User Benchmarks
Best Bench: 75% Base clock 5 GHz
Worst Bench: 20% Base clock 3.5 GHz
Worst: 20% Best: 75%
SPEED RANK: 235th / 867
Desktop 57%
Gaming 56%
Workstation 36%
Jet ski
Effective Speed
Effective CPU Speed
26.2 % -117% 56.8 % Hugely faster effective speed.
Market Share
Based on 421,605 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.2 % -850% 1.9 % Hugely higher market share.
Value For Money
27.4 % -137% 64.9 % Hugely better value.
User Rating
UBM User Rating
50 % -48% 74 % Much more popular.
Price (score)
$130 -24% $99 Cheaper.
SC Mixed
Avg. Single Core Mixed Speed
36.8 Pts -95% 71.8 Pts Hugely faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
70.9 Pts -257% 253 Pts Hugely faster quad-core speed.
MC Mixed
Avg. Multi Core Mixed Speed
72.8 Pts -385% 353 Pts Hugely faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
45.2 Pts -85% 83.5 Pts Hugely faster OC single-core speed.
QC Mixed
OC Quad Core Mixed Speed
88.6 Pts -247% 307 Pts Hugely faster OC quad-core speed.
MC Mixed
OC Multi Core Mixed Speed
89.2 Pts -387% 434 Pts Hugely faster OC multi-core speed.
97 Months -63% 36 Months Much more recent.
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
95 Watts -32%
CPU Processing Cores
2 cores -200% 6 cores Hugely higher core count.
CPU Processing Threads
2 threads -200% 6 threads Hugely higher thread count.
Manufacturing process
65 nm -51% 32 nm Much newer manufacturing.
Base Clock
Base Clock Speed
2.33 GHz -50% 3.5 GHz Much faster base frequency.
Turbo Clock
Turbo Clock Speed
2.33 GHz -76% 4.1 GHz Much faster turbo frequency.
SC Int
Single Core Integer Speed
66.1 Pts -35% 89.5 Pts Much faster single-core int speed.
SC Float
Single Core Floating Point Speed
34.5 Pts -127% 78.2 Pts Hugely faster single-core fp speed.
QC Int
Quad Core Integer Speed
129 Pts -143% 314 Pts Hugely faster quad-core int speed.
QC Float
Quad Core Floating Point Speed
67.8 Pts -322% 286 Pts Hugely faster quad-core fp speed.
MC Int
Multi Core Integer Speed
131 Pts -224% 424 Pts Hugely faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
68.7 Pts -491% 406 Pts Hugely faster multi-core fp speed.
CPU Architecture
Core (2006) Piledriver (2012)
Motherboard Socket
LGA775 AM3+
Integrated Graphics
None None

The Intel Core2 Duo E6550 is nearly six years old, the equivalent of around 3 processor lifetimes. This great grand daddy of a processor has been included in the group test as a reference. Intel's Core2 Duo range were hugely successful processors and shipped in over 20 different flavours. In terms of real world performance, with a Passmark-S score of 712 points, the E6550 is less than half as fast as the top of the range i7-3770K Ivy Bridge processor. In recent years emphasis has shifted towards server orientated workloads and on that front the i7-3770K offers over six times more processing throughput. [Feb '12 CPUPro]


The FX 6-Core, like most CPUs from AMD, delivers reasonably good server orientated multi threaded performance and consequently good processing thoughput at a reasonable price tag. Where the FX 6-Core lacks is in the area of single core performance which although not normally a major problem for server workloads, is always very relevant to desktop users. The overall performance of the FX 6-Core is comparable to Intel's five years younger Core i7-950. There are server orientated use cases where the FX 6-Core will excel thanks to its excellent overall throughput and in those instances the FX 6-Core represents good value for money. But typical desktop users will find far better value elsewhere[Sep '13 CPUPro]


Processor User Rankings (Charts) October 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]

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)
  • - 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.
Intel Core i7-4790K $320Nvidia GTX 970 $320Samsung 850 Evo 250GB $90Barracuda 7200.14 1TB $44SanDisk Extreme 16GB $16
Intel Core i5-4690K $230Nvidia GTX 980 Ti $570Samsung 850 Pro 256GB $126WD Black 1TB (2013) $68SanDisk Extreme 64GB $35
Intel Core i7-6700K $360Nvidia GTX 980 $500Samsung 850 Evo 120GB $61WD Black 2TB (2013) $115Ultra Fit 32GB $12
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