CPUBoss Review Our evaluation of L7555 vs E4300 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

5.2

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E4300 

CPUBoss recommends the Intel Core2 Duo E4300  based on its power consumption and value.

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VS

Differences What are the advantages of each

Front view of Intel Xeon L7555

Reasons to consider the
Intel Xeon L7555

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much better geekbench 3 Multi-Core score 16,824 vs 1,754 More than 9.5x better geekbench 3 Multi-Core score
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
More threads 16 vs 2 14 more threads
More cores 8 vs 2 6 more cores; run more applications at once
Newer Mar, 2010 vs Jul, 2006 Release date over 3 years later
Better geekbench 3 single core score 1,386 vs 960 Around 45% better geekbench 3 single core score
Better performance per watt 2.79 pt/W vs 1.14 pt/W Around 2.5x better performance per watt
Higher Maximum operating temperature 70 °C vs 61.4 °C Around 15% higher Maximum operating temperature
Front view of Intel Core2 Duo E4300

Reasons to consider the
Intel Core2 Duo E4300

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Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Much better performance per dollar 0.7 pt/$ vs 0.08 pt/$ More than 8.5x better performance per dollar
Much better overclocked clock speed (Air) 3.21 GHz vs 1.87 GHz More than 70% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.6 GHz vs 1.87 GHz Around 95% better overclocked clock speed (Water)
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost

Benchmarks Real world tests of Xeon L7555 vs Core2 Duo E4300

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

Xeon L7555
114,400 MB/s
Core2 Duo E4300
77,000 MB/s

Specifications Full list of technical specs

summary

Xeon L7555  vs
Core2 Duo E4300 
Clock speed 1.87 GHz 1.8 GHz
Cores Octa core Dual core
Socket type
LGA 1567
LGA 775

features

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

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Performance per watt 2.79 pt/W 1.14 pt/W
Typical power consumption 77.19W 52.81W

details

Xeon L7555  vs
Core2 Duo E4300 
Threads 16 2
L2 cache 2 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 8 1
Voltage range 0.68 - 1.35V 0.85 - 1.5V
Operating temperature Unknown - 70°C Unknown - 61.4°C

overclocking

Overclocked clock speed 1.87 GHz 3.21 GHz
Overclocked clock speed (Water) 1.87 GHz 3.6 GHz
Overclocked clock speed (Air) 1.87 GHz 3.21 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

bus

Architecture QPI FSB
Number of links 4 1
Clock speed 2,930 MHz 800 MHz
Intel Xeon L7555
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Intel Core2 Duo E4300
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