CPUBoss Review Our evaluation of E5472 vs Q9550 among all 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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon E5472

Reasons to consider the
Intel Xeon E5472

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Much better geekbench 3 Multi-Core score 10,821 vs 5,498 More than 95% better geekbench 3 Multi-Core score
Slightly higher clock speed 3 GHz vs 2.83 GHz More than 5% higher clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Better performance per watt 2.41 pt/W vs 1.51 pt/W Around 60% better performance per watt
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Front view of Intel Core2 Quad Q9550

Reasons to consider the
Intel Core2 Quad Q9550

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better performance per dollar 0.5 pt/$ vs 0.19 pt/$ Around 2.8x better performance per dollar
Better overclocked clock speed (Air) 3.99 GHz vs 3.38 GHz Around 20% better overclocked clock speed (Air)
Higher Maximum operating temperature 71.4 °C vs 67 °C More than 5% higher Maximum operating temperature
Better overclocked clock speed (Water) 4.03 GHz vs 3.58 GHz Around 15% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5472 vs Core2 Quad Q9550

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

Xeon E5472
123,300 MB/s
Core2 Quad Q9550
121,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5472  vs
Core2 Quad Q9550 
Clock speed 3 GHz 2.83 GHz
Cores Quad core Quad core
Socket type
LGA 771
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 95W
Annual home energy cost 19.27 $/year 22.89 $/year
Annual commercial energy cost 70.08 $/year 83.22 $/year
Performance per watt 2.41 pt/W 1.51 pt/W
Typical power consumption 65W 77.19W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,600 MHz 1,333 MHz

details

Xeon E5472  vs
Core2 Quad Q9550 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 12 MB 12 MB
L2 cache per core 3 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 820,000,000 820,000,000
Max CPUs 2 1
Clock multiplier 7 8
Voltage range 0.85 - 1.35V 0.85 - 1.36V
Operating temperature Unknown - 67°C Unknown - 71.4°C

overclocking

Overclocked clock speed 3.38 GHz 3.99 GHz
Overclocked clock speed (Water) 3.58 GHz 4.03 GHz
Overclocked clock speed (Air) 3.38 GHz 3.99 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 Xeon E5472
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Intel Core2 Quad Q9550
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