CPUBoss Review Our evaluation of E5-4603 vs E8400 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

5.3

CPUBoss Score

Combination of all six facets

Winner
Intel Xeon E5-4603 

CPUBoss recommends the Intel Xeon E5-4603  based on its performance.

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VS

Intel Xeon E5-4603

CPUBoss Winner
Front view of Intel Xeon E5-4603

Differences What are the advantages of each

Front view of Intel Xeon E5-4603

Reasons to consider the
Intel Xeon E5-4603

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Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports more CPUs in SMP configuration 4 vs 1 3 supports more CPUs in SMP configuration
More threads 8 vs 2 6 more threads
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer May, 2012 vs Jan, 2008 Release date over 4 years later
Better PassMark score 5,014 vs 2,160 More than 2.2x better PassMark score
Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 3 GHz vs 2 GHz 50% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 2 GHz More than 2x better overclocked clock speed (Air)
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly better performance per dollar 0.67 pt/$ vs 0.29 pt/$ More than 2.2x better performance per dollar
Much better overclocked clock speed (Water) 4.23 GHz vs 2 GHz More than 2x better overclocked clock speed (Water)
Better PassMark (Single core) score 1,251 vs 1,063 Around 20% better PassMark (Single core) score
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 E5-4603 vs Core2 Duo E8400

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon E5-4603  vs
Core2 Duo E8400 
Clock speed 2 GHz 3 GHz
Cores Quad core Dual core
Socket type
LGA 2011
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
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 1.71 pt/W 1.83 pt/W
Typical power consumption 77.19W 52.81W

details

Xeon E5-4603  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 8 2
L2 cache 1 MB 6 MB
L2 cache per core 0.25 MB/core 3 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 4 1
Voltage range 0.6 - 1.35V 0.85 - 1.36V

overclocking

Overclocked clock speed 2 GHz 4.22 GHz
Overclocked clock speed (Water) 2 GHz 4.23 GHz
Overclocked clock speed (Air) 2 GHz 4.22 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 2 1
Clock speed 3,200 MHz 1,333 MHz
Intel Xeon E5-4603
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Intel Core2 Duo E8400
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