CPUBoss Review Our evaluation of Q9550 vs 5400B among desktop CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

3.9

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Quad Q9550 

CPUBoss recommends the Intel Core2 Quad Q9550  based on its performance.

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VS

Differences What are the advantages of each

Front view of Intel Core2 Quad Q9550

Reasons to consider the
Intel Core2 Quad Q9550

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 4,002 vs 1,425 More than 2.8x better PassMark score
Much better geekbench 2 (32-bit) score 5,132 vs 2,051 More than 2.5x better geekbench 2 (32-bit) score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better performance per watt 1.51 pt/W vs 0.88 pt/W More than 70% better performance per watt
Much better overclocked clock speed (Air) 3.99 GHz vs 3.27 GHz More than 20% better overclocked clock speed (Air)
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Significantly higher Maximum operating temperature 71.4 °C vs 68 °C More than 5% higher Maximum operating temperature
Much better overclocked clock speed (Water) 4.03 GHz vs 2.8 GHz Around 45% better overclocked clock speed (Water)
Front view of AMD Athlon X2 5400B

Reasons to consider the
AMD Athlon X2 5400B

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Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Core2 Quad Q9550 vs Athlon X2 5400B

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core2 Quad Q9550
121,500 MB/s
Athlon X2 5400B
74.95 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Quad Q9550  vs
Athlon X2 5400B 
Clock speed 2.83 GHz 2.8 GHz
Cores Quad core Dual core
Socket type
LGA 775
AM2

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 1.51 pt/W 0.88 pt/W
Typical power consumption 77.19W 52.81W

details

Core2 Quad Q9550  vs
Athlon X2 5400B 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 12 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 71.4°C Unknown - 68°C

overclocking

Overclocked clock speed 3.99 GHz 3.27 GHz
Overclocked clock speed (Water) 4.03 GHz 2.8 GHz
Overclocked clock speed (Air) 3.99 GHz 3.27 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A
Intel Core2 Quad Q9550
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AMD Athlon X2 5400B
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