CPUBoss Review Our evaluation of L7455 vs 3970X 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 Core i7 3970X 

CPUBoss recommends the Intel Core i7 3970X  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 1 31 supports more CPUs in SMP configuration
Much lower typical power consumption 52.81W vs 121.88W 2.3x lower typical power consumption
Much more l2 cache per core 2 MB/core vs 0.33 MB/core More than 6x more l2 cache per core
Much lower annual home energy cost 15.66 $/year vs 36.13 $/year 2.3x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 131.4 $/year 2.3x lower annual commercial energy cost
Higher Maximum operating temperature 73 °C vs 66.8 °C Around 10% higher Maximum operating temperature
Front view of Intel Core i7 3970X

Reasons to consider the
Intel Core i7 3970X

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Much higher clock speed 3.5 GHz vs 2.13 GHz Around 65% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per dollar 1.11 pt/$ vs 0.07 pt/$ More than 16.2x better performance per dollar
Much better PassMark score 12,923 vs 3,836 More than 3.2x better PassMark score
Much better overclocked clock speed (Air) 4.57 GHz vs 2.13 GHz Around 2.2x better overclocked clock speed (Air)
Much better PassMark (Single core) score 2,047 vs 925 Around 2.2x better PassMark (Single core) score
More l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better performance per watt 8.17 pt/W vs 2.87 pt/W More than 2.8x better performance per watt
More threads 12 vs 6 Twice as many threads
Newer Nov, 2012 vs Sep, 2008 Release date over 4 years later
More l3 cache per core 2.5 MB/core vs 2 MB/core 25% more l3 cache per core
Much better overclocked clock speed (Water) 4.44 GHz vs 2.13 GHz More than 2x better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon L7455 vs Core i7 3970X

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L7455
19,744
Core i7 3970X
19,564

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L7455
108 MB/s
Core i7 3970X
2,690,000 MB/s

PassMark Data courtesy Passmark

Xeon L7455
3,836
Core i7 3970X
12,923

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon L7455  vs
Core i7 3970X 
Clock speed 2.13 GHz 3.5 GHz
Cores Hexa core Hexa core
Socket type
604
LGA 2011

features

Has a NX bit Yes Yes
Supports trusted computing No No
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 150W
Annual home energy cost 15.66 $/year 36.13 $/year
Annual commercial energy cost 56.94 $/year 131.4 $/year
Performance per watt 2.87 pt/W 8.17 pt/W
Typical power consumption 52.81W 121.88W

bus

Architecture FSB DMI 2.0
Number of links 1 1

details

Xeon L7455  vs
Core i7 3970X 
Architecture x86-64 x86-64
Threads 6 12
L2 cache 12 MB 2 MB
L2 cache per core 2 MB/core 0.33 MB/core
L3 cache 12 MB 15 MB
L3 cache per core 2 MB/core 2.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 32 1
Clock multiplier 8 35
Voltage range 0.9 - 1.45V 0.6 - 1.35V
Operating temperature Unknown - 73°C Unknown - 66.8°C

overclocking

Overclocked clock speed 2.13 GHz 4.57 GHz
Overclocked clock speed (Water) 2.13 GHz 4.44 GHz
Overclocked clock speed (Air) 2.13 GHz 4.57 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 Core i7 3970X
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