CPUBoss Review Our evaluation of E5240 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 E5240

CPUBoss Winner
Front view of Intel Xeon E5240

Differences What are the advantages of each

Front view of Intel Xeon E5240

Reasons to consider the
Intel Xeon E5240

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3 GHz vs 2.4 GHz More than 25% higher clock speed
Much more l2 cache per core 3 MB/core vs 2 MB/core 50% more l2 cache per core
Much lower typical power consumption 52.81W vs 85.31W Around 40% lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much better overclocked clock speed (Air) 4.89 GHz vs 3.52 GHz Around 40% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,277 vs 924 Around 40% better PassMark (Single core) score
Much lower annual home energy cost 15.66 $/year vs 25.29 $/year Around 40% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 91.98 $/year Around 40% lower annual commercial energy cost
Newer Feb, 2008 vs Jan, 2007 Release date over 1 years later
Higher Maximum operating temperature 66 °C vs 62.2 °C More than 5% higher Maximum operating temperature
Slightly better performance per watt 1.86 pt/W vs 1.19 pt/W More than 55% better performance per watt
Front view of Intel Core2 Quad Q6600

Reasons to consider the
Intel Core2 Quad Q6600

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Much more l2 cache 8 MB vs 6 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Better overclocked clock speed (Water) 3.6 GHz vs 3 GHz More than 20% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon E5240 vs Core2 Quad Q6600

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5240  vs
Core2 Quad Q6600 
Clock speed 3 GHz 2.4 GHz
Cores Dual 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
SSE4.1
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 105W
Annual home energy cost 15.66 $/year 25.29 $/year
Annual commercial energy cost 56.94 $/year 91.98 $/year
Performance per watt 1.86 pt/W 1.19 pt/W
Typical power consumption 52.81W 85.31W

bus

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

details

Xeon E5240  vs
Core2 Quad Q6600 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 8 MB
L2 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Transistor count 410,000,000 582,000,000
Max CPUs 2 1
Clock multiplier 9 9
Voltage range 0.85 - 1.35V 0.85 - 1.5V
Operating temperature Unknown - 66°C Unknown - 62.2°C

overclocking

Overclocked clock speed 4.89 GHz 3.52 GHz
Overclocked clock speed (Water) 3 GHz 3.6 GHz
Overclocked clock speed (Air) 4.89 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 E5240
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Intel Core2 Quad Q6600
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