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Differences What are the advantages of each

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
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better performance per watt 1.83 pt/W vs 0.73 pt/W More than 2.5x better performance per watt
Much better overclocked clock speed (Air) 4.22 GHz vs 3.16 GHz Around 35% better overclocked clock speed (Air)
Higher clock speed 3 GHz vs 2.8 GHz More than 5% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Much better overclocked clock speed (Water) 4.23 GHz vs 3.33 GHz More than 25% 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
Front view of AMD Athlon X2 7850

Reasons to consider the
AMD Athlon X2 7850

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Newer Apr, 2009 vs Jan, 2008 Release date over 1 years later

Benchmarks Real world tests of Core2 Duo E8400 vs Athlon X2 7850

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

Core2 Duo E8400
128,000 MB/s
Athlon X2 7850
105.5 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Cinebench R10 32-Bit

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Athlon X2 7850 
Clock speed 3 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
LGA 775
AM2+

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
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 1.83 pt/W 0.73 pt/W
Typical power consumption 52.81W 77.19W

details

Core2 Duo E8400  vs
Athlon X2 7850 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1
Voltage range 0.85 - 1.36V 1.05 - 1.32V
Operating temperature Unknown - 72.4°C Unknown - 73°C

overclocking

Overclocked clock speed 4.22 GHz 3.16 GHz
Overclocked clock speed (Water) 4.23 GHz 3.33 GHz
Overclocked clock speed (Air) 4.22 GHz 3.16 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 Core2 Duo E8400
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AMD Athlon X2 7850
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