CPUBoss Review Our evaluation of L7455 vs E5-2660 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 E5-2660 

CPUBoss recommends the Intel Xeon E5-2660  based on its performance, single-core performance and value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon L7455

Reasons to consider the
Intel Xeon L7455

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Much more l2 cache 12 MB vs 2 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 32 vs 2 30 supports more CPUs in SMP configuration
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Front view of Intel Xeon E5-2660

Reasons to consider the
Intel Xeon E5-2660

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Much more l3 cache 20 MB vs 12 MB More than 65% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better PassMark score 13,435 vs 3,836 More than 3.5x better PassMark score
Much better PassMark (Single core) score 1,445 vs 925 More than 55% better PassMark (Single core) score
More threads 16 vs 6 10 more threads
Much better performance per watt 7.69 pt/W vs 2.87 pt/W Around 2.8x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Higher clock speed 2.2 GHz vs 2.13 GHz Around 5% higher clock speed
Much better overclocked clock speed (Air) 2.65 GHz vs 2.13 GHz Around 25% better overclocked clock speed (Air)
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 3.17 GHz vs 2.13 GHz Around 50% better overclocked clock speed (Water)
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Newer Mar, 2012 vs Sep, 2008 Release date over 3 years later

Benchmarks Real world tests of Xeon L7455 vs E5-2660

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L7455
19,744
Xeon E5-2660
6,800

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L7455
1,167
Xeon E5-2660
1,918

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L7455
108 MB/s
Xeon E5-2660
1,540,000 MB/s

PassMark Data courtesy Passmark

Xeon L7455
3,836
Xeon E5-2660
13,435

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon L7455  vs
E5-2660 
Clock speed 2.13 GHz 2.2 GHz
Cores Hexa core Octa core
Socket type
604
LGA 2011

features

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

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Performance per watt 2.87 pt/W 7.69 pt/W
Typical power consumption 52.81W 77.19W

bus

Architecture FSB QPI
Number of links 1 2
Clock speed 1,066 MHz 4,000 MHz

details

Xeon L7455  vs
E5-2660 
Architecture x86-64 x86-64
Threads 6 16
L2 cache 12 MB 2 MB
L2 cache per core 2 MB/core 0.25 MB/core
L3 cache 12 MB 20 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 32 2
Clock multiplier 8 30
Voltage range 0.9 - 1.45V 0.6 - 1.35V
Operating temperature Unknown - 73°C Unknown - 73°C

overclocking

Overclocked clock speed 2.13 GHz 2.65 GHz
Overclocked clock speed (Water) 2.13 GHz 3.17 GHz
Overclocked clock speed (Air) 2.13 GHz 2.65 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 L7455
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Intel Xeon E5-2660
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