CPUBoss Review Our evaluation of E6750 vs E6540 among desktop CPUs (45 to 75W)

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

2.9

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E6750 

CPUBoss recommends the Intel Core2 Duo E6750  based on its overclocking.

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VS

Differences What are the advantages of each

Front view of Intel Core2 Duo E6750

Reasons to consider the
Intel Core2 Duo E6750

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Higher clock speed 2.66 GHz vs 2.33 GHz Around 15% higher clock speed
Much better performance per watt 1.7 pt/W vs 0.98 pt/W Around 75% better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Significantly better overclocked clock speed (Air) 3.67 GHz vs 3.41 GHz Around 10% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.72 GHz vs 2.33 GHz Around 60% better overclocked clock speed (Water)
Front view of Intel Core2 Duo E6540

Reasons to consider the
Intel Core2 Duo E6540

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CPUBoss is not aware of any important advantages of the E6540 vs the E6750.

Benchmarks Real world tests of Core2 Duo E6750 vs E6540

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 Duo E6750
113,500 MB/s
Core2 Duo E6540
99.4 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E6750  vs
E6540 
Clock speed 2.66 GHz 2.33 GHz
Cores Dual core Dual core
Socket type
LGA 775

features

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

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 1.7 pt/W 0.98 pt/W
Typical power consumption 52.81W 52.81W

bus

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

details

Core2 Duo E6750  vs
E6540 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 4 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 291,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 8 7
Voltage range 0.85 - 1.5V 0.85 - 1.5V
Operating temperature Unknown - 72°C Unknown - 72°C

overclocking

Overclocked clock speed 3.67 GHz 3.41 GHz
Overclocked clock speed (Water) 3.72 GHz 2.33 GHz
Overclocked clock speed (Air) 3.67 GHz 3.41 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 Duo E6750
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Intel Core2 Duo E6540
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