CPUBoss Review Our evaluation of X5355 vs Q6600 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

Intel Xeon X5355

CPUBoss Winner
Front view of Intel Xeon X5355

Differences What are the advantages of each

Front view of Intel Xeon X5355

Reasons to consider the
Intel Xeon X5355

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Much better geekbench 3 Multi-Core score 9,667 vs 4,490 Around 2.2x better geekbench 3 Multi-Core score
Higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Higher Maximum operating temperature 70 °C vs 62.2 °C Around 15% higher Maximum operating temperature
Front view of Intel Core2 Quad Q6600

Reasons to consider the
Intel Core2 Quad Q6600

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Lower typical power consumption 85.31W vs 97.5W Around 15% lower typical power consumption
Better overclocked clock speed (Air) 3.52 GHz vs 3.24 GHz Around 10% better overclocked clock speed (Air)
Significantly better overclocked clock speed (Water) 3.6 GHz vs 2.66 GHz More than 35% better overclocked clock speed (Water)
Lower annual home energy cost 25.29 $/year vs 28.91 $/year Around 15% lower annual home energy cost
Lower annual commercial energy cost 91.98 $/year vs 105.12 $/year Around 15% lower annual commercial energy cost

Benchmarks Real world tests of Xeon X5355 vs Core2 Quad Q6600

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 X5355
108,000 MB/s
Core2 Quad Q6600
102,800 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 X5355  vs
Core2 Quad Q6600 
Clock speed 2.66 GHz 2.4 GHz
Cores Quad core Quad core
Socket type
LGA 771
LGA 775

features

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

power consumption

TDP 120W 105W
Annual home energy cost 28.91 $/year 25.29 $/year
Annual commercial energy cost 105.12 $/year 91.98 $/year
Performance per watt 1.37 pt/W 1.19 pt/W
Typical power consumption 97.5W 85.31W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,066 MHz

details

Xeon X5355  vs
Core2 Quad Q6600 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 8 MB 8 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 582,000,000 582,000,000
Max CPUs 2 1
Clock multiplier 8 9
Voltage range 1 - 1.5V 0.85 - 1.5V
Operating temperature Unknown - 70°C Unknown - 62.2°C

overclocking

Overclocked clock speed 3.24 GHz 3.52 GHz
Overclocked clock speed (Water) 2.66 GHz 3.6 GHz
Overclocked clock speed (Air) 3.24 GHz 3.52 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 X5355
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Intel Core2 Quad Q6600
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