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Intel Core i7 2655LE

CPUBoss Winner
Front view of Intel Core i7 2655LE

Differences What are the advantages of each

Front view of Intel Core i7 2655LE

Reasons to consider the
Intel Core i7 2655LE

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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 performance per watt 23.92 pt/W vs 11.4 pt/W More than 2x better performance per watt
Higher clock speed 2.2 GHz vs 1.91 GHz More than 15% higher clock speed
Significantly better turbo clock speed 1,000 MHz vs 792 MHz More than 25% better turbo clock speed
Significantly better PassMark (Single core) score 1,350 vs 398 Around 3.5x better PassMark (Single core) score
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Higher GPU clock speed 650 MHz vs 542 MHz Around 20% higher GPU clock speed
Better geekbench 3 Multi-Core score 3,649 vs 2,624 Around 40% better geekbench 3 Multi-Core score
Better overclocked clock speed (Air) 2.2 GHz vs 1.92 GHz Around 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2.2 GHz vs 1.91 GHz More than 15% better overclocked clock speed (Water)
Front view of Intel Atom E3845

Reasons to consider the
Intel Atom E3845

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Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly better performance per dollar 2.19 pt/$ vs 1.83 pt/$ Around 20% better performance per dollar
Lower typical power consumption 8.13W vs 20.31W 2.5x lower typical power consumption
More cores 4 vs 2 Twice as many cores; run more applications at once
Higher Maximum operating temperature 110 °C vs 100 °C 10% higher Maximum operating temperature
Newer Oct, 2013 vs Feb, 2011 Release date over 2 years later
Lower annual home energy cost 2.41 $/year vs 6.02 $/year 2.5x lower annual home energy cost
Lower annual commercial energy cost 8.76 $/year vs 21.9 $/year 2.5x lower annual commercial energy cost

Benchmarks Real world tests of Core i7 2655LE vs Atom E3845

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

Core i7 2655LE
1,470,000 MB/s
Atom E3845
317,450 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 2655LE  vs
Atom E3845 
Clock speed 2.2 GHz 1.91 GHz
Cores Dual core Quad core
Socket type
BGA 1023
BGA 1170
Is unlocked No No

features

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

power consumption

TDP 25W 10W
Annual home energy cost 6.02 $/year 2.41 $/year
Annual commercial energy cost 21.9 $/year 8.76 $/year
Performance per watt 23.92 pt/W 11.4 pt/W
Typical power consumption 20.31W 8.13W

bus

Architecture DMI FSB
Number of links 1 1

details

Core i7 2655LE  vs
Atom E3845 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C -40 - 110°C

overclocking

Overclocked clock speed 2.2 GHz 1.92 GHz
Overclocked clock speed (Water) 2.2 GHz 1.91 GHz
Overclocked clock speed (Air) 2.2 GHz 1.92 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 HD
Number of displays supported 2 2
GPU clock speed 650 MHz 542 MHz
Turbo clock speed 1,000 MHz 792 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
DDR3L-1333
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 21,333.32 MB/s 12,800 MB/s
Maximum memory size 16,998.4 MB 8,192 MB
Intel Core i7 2655LE
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Intel Atom E3845
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