CPUBoss Review Our evaluation of E5700 vs E8400

Performance

Benchmark performance using all cores

Passmark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

Passmark (Single Core)

Overclocking

How much speed can you get out of the processor?

overclock popularity

Value

Are you paying a premium for performance?

Performance Per Dollar

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Pentium E5700

Reasons to consider the
Intel Pentium E5700

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Marginally newer Jul, 2010 vs Jan, 2008 Release date over 2 years later
Higher Maximum Operating Temperature 74.1 °C vs 72.4 °C Almost the same
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 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better performance per dollar 20.93 pt/$ vs 18.41 pt/$ Around 15% better performance per dollar

Benchmarks Real world tests of Pentium E5700 vs Core2 Duo E8400

GeekBench

3D Mark 11 (Physics)

Pentium E5700 Core2 Duo E8400 @ community.futuremark.com

Specifications Full list of technical specs

summary

Pentium E5700  vs
Core2 Duo E8400 
Clock speed 3 GHz 3 GHz
Cores Dual core Dual core
Socket type
LGA 775
Is hyperthreaded No No

features

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

gpu

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 FSB FSB
Number of links 1 1
Clock speed 800 MHz 1,333 MHz

details

Pentium E5700  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 6 MB
L2 cache per core 1 MB/core 3 MB/core
Manufacture process 45 nms 45 nms
Transistor count 228,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 15 9
Voltage range 0.85 - 1.36V 0.85 - 1.36V
Operating temperature Unknown - 74.1°C Unknown - 72.4°C

overclocking

Overclock popularity 13 125

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 4.81 pt/W 5.78 pt/W
Typical power consumption 52.81W 52.81W
Intel Pentium E5700
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Intel Core2 Duo E8400
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