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

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

Real World Speed
Performance profile from 12,987 user samples
946 User Benchmarks
Best Bench: 36% Base clock 2.35 GHz
Worst Bench: 5% Base clock 0.7 GHz
Worst: 5% Best: 36%
SPEED RANK: 709th / 903
Desktop 24%
Gaming 17%
Workstation 10%
Tree trunk
12,041 User Benchmarks
Best Bench: 71% Base clock 5 GHz, turbo 5 GHz (avg)
Worst Bench: 13% Base clock 3.5 GHz
Worst: 13% Best: 71%
SPEED RANK: 272nd / 903
Desktop 53%
Gaming 51%
Workstation 35%
Sail boat
Effective Speed
Effective CPU Speed
23.7 % -122% 52.7 % Hugely faster effective speed.
Market Share
Based on 1,180,389 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.1 % -1,900% 2 % Insanely higher market share.
Value For Money
34 % -79% 61 % Much better value.
User Rating
UBM User Rating
50 % -28% 64 % More popular.
Price (score)
$50 Much cheaper.
$95 -47%
SC Mixed
Avg. Single Core Mixed Speed
35.1 Pts -102% 70.8 Pts Hugely faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
67.2 Pts -256% 239 Pts Hugely faster quad-core speed.
MC Mixed
Avg. Multi Core Mixed Speed
69.5 Pts -369% 326 Pts Hugely faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
38.5 Pts -114% 82.5 Pts Hugely faster OC single-core speed.
QC Mixed
OC Quad Core Mixed Speed
78.3 Pts -275% 294 Pts Hugely faster OC quad-core speed.
MC Mixed
OC Multi Core Mixed Speed
78.1 Pts -421% 407 Pts Hugely faster OC multi-core speed.
104 Months -59% 43 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
58.6 Pts -52% 88.8 Pts Much faster single-core int speed.
SC Float
Single Core Floating Point Speed
29.6 Pts -159% 76.8 Pts Hugely faster single-core fp speed.
QC Int
Quad Core Integer Speed
117 Pts -165% 310 Pts Hugely faster quad-core int speed.
QC Float
Quad Core Floating Point Speed
58.1 Pts -358% 266 Pts Hugely faster quad-core fp speed.
MC Int
Multi Core Integer Speed
118 Pts -251% 414 Pts Hugely faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
59.5 Pts -493% 353 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 Rankings (Price vs Performance) May 2016 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).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: DX9 and DX10 3D performance.
  • - 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
  • - 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.

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