CPUBoss Review Our evaluation of E3-1240 vs C2758 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

5.4

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E3-1240 

CPUBoss recommends the Intel Xeon E3-1240  based on its performance, single-core performance and value.

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VS

Intel Xeon E3-1240

CPUBoss Winner
Front view of Intel Xeon E3-1240

Differences What are the advantages of each

Front view of Intel Xeon E3-1240

Reasons to consider the
Intel Xeon E3-1240

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Much higher clock speed 3.3 GHz vs 2.4 GHz Around 40% higher clock speed
Much better PassMark score 8,001 vs 3,162 More than 2.5x better PassMark score
Much better PassMark (Single core) score 1,847 vs 513 More than 3.5x better PassMark (Single core) score
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Much better overclocked clock speed (Air) 3.71 GHz vs 2.4 GHz Around 55% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.4 GHz vs 2.4 GHz More than 40% better overclocked clock speed (Water)
Front view of Intel Atom C2758

Reasons to consider the
Intel Atom C2758

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More cores 8 vs 4 Twice as many cores; run more applications at once
Much lower typical power consumption 16.25W vs 65W 4x lower typical power consumption
Newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more RAM 65,536 MB vs 32,768 MB Supports 2x more RAM
Much lower annual commercial energy cost 17.52 $/year vs 70.08 $/year 4x lower annual commercial energy cost
Much lower annual home energy cost 4.82 $/year vs 19.27 $/year 4x lower annual home energy cost
Newer Jul, 2013 vs Apr, 2011 Release date over 2 years later

Benchmarks Real world tests of Xeon E3-1240 vs Atom C2758

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon E3-1240
3,180
Atom C2758
2,292

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon E3-1240
4,280 MB/s
Atom C2758
52,100 MB/s

PassMark Data courtesy Passmark

Xeon E3-1240
8,001
Atom C2758
3,162

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E3-1240  vs
Atom C2758 
Clock speed 3.3 GHz 2.4 GHz
Cores Quad core Octa core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

TDP 80W 20W
Annual home energy cost 19.27 $/year 4.82 $/year
Annual commercial energy cost 70.08 $/year 17.52 $/year
Performance per watt 2.17 pt/W 4.02 pt/W
Typical power consumption 65W 16.25W

bus

Architecture DMI FSB
Number of links 1 1

details

Xeon E3-1240  vs
Atom C2758 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 32 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.71 GHz 2.4 GHz
Overclocked clock speed (Water) 3.4 GHz 2.4 GHz
Overclocked clock speed (Air) 3.71 GHz 2.4 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 21,333.32 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 65,536 MB
Intel Xeon E3-1240
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Intel Atom C2758
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