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

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

Real World Speed
Performance profile from 21,397 user samples
1,231 User Benchmarks
Best Bench: 18% Base clock 3.35 GHz, turbo 3.35 GHz (avg)
Worst Bench: 12% Base clock 0.7 GHz
Worst: 12% Best: 18%
SPEED RANK: 738th / 913
Gaming 17%
Desktop 23%
Workstation 9%
Tree trunk
20,166 User Benchmarks
Best Bench: 60% Base clock 4.8 GHz, turbo 4.8 GHz (avg)
Worst Bench: 41% Base clock 4.1 GHz, turbo 1.4 GHz (avg)
Worst: 41% Best: 60%
SPEED RANK: 229th / 913
Gaming 51%
Desktop 52%
Workstation 35%
Sail boat
Effective Speed
Effective CPU Speed
16.6 % -205% 50.5 % Hugely faster effective speed.
SC Mixed
Avg. Single Core Mixed Speed
34 Pts -107% 70.3 Pts Hugely faster single-core speed.
QC Mixed
Avg. Quad Core Mixed Speed
64.7 Pts -265% 236 Pts Hugely faster quad-core speed.
MC Mixed
Avg. Multi Core Mixed Speed
67.2 Pts -382% 324 Pts Hugely faster multi-core speed.
SC Mixed
OC Single Core Mixed Speed
37 Pts -117% 80.4 Pts Hugely faster OC single-core speed.
QC Mixed
OC Quad Core Mixed Speed
73.8 Pts -289% 287 Pts Hugely faster OC quad-core speed.
MC Mixed
OC Multi Core Mixed Speed
74.5 Pts -428% 393 Pts Hugely faster OC multi-core speed.
Market Share
Based on 1,768,152 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.1 % -1,600% 1.7 % Insanely higher market share.
Value For Money
55.2 % -37% 75.4 % Much better value.
User Rating
UBM User Rating
49 % -33% 65 % Much more popular.
Price (score)
$12 Hugely cheaper.
$100 -88%
108 Months -56% 47 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 Pts -49% 86.6 Pts Much faster single-core int speed.
SC Float
Single Core Floating Point Speed
27 Pts -179% 75.3 Pts Hugely faster single-core fp speed.
QC Int
Quad Core Integer Speed
116 Pts -160% 302 Pts Hugely faster quad-core int speed.
QC Float
Quad Core Floating Point Speed
53.8 Pts -381% 259 Pts Hugely faster quad-core fp speed.
MC Int
Multi Core Integer Speed
117 Pts -244% 402 Pts Hugely faster multi-core int speed.
MC Float
Multi Core Floating Point Speed
54.3 Pts -534% 344 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) September 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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