CPUBoss Review Our evaluation of E8400 vs 2800+ among desktop 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

Fire Strike

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?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

3.8

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E8400 

CPUBoss recommends the Intel Core2 Duo E8400  based on its performance, single-core performance and overclocking.

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VS

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 newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3 GHz vs 1.8 GHz More than 65% higher clock speed
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 better PassMark score 2,160 vs 438 Around 5x better PassMark score
Much better PassMark (Single core) score 1,251 vs 512 Around 2.5x better PassMark (Single core) score
Much better geekbench 2 (32-bit) score 2,826 vs 682 Around 4.2x better geekbench 2 (32-bit) score
Much better overclocked clock speed (Air) 4.22 GHz vs 2.57 GHz Around 65% better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Much better performance per watt 1.83 pt/W vs 0.42 pt/W More than 4.2x better performance per watt
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Significantly lower typical power consumption 52.81W vs 72.31W More than 25% lower typical power consumption
Much better overclocked clock speed (Water) 4.23 GHz vs 2.13 GHz Around 2x better overclocked clock speed (Water)
Higher Maximum operating temperature 72.4 °C vs 70 °C Around 5% higher Maximum operating temperature
Newer Jan, 2008 vs May, 2004 Release date over 3 years later
Significantly lower annual home energy cost 15.66 $/year vs 21.44 $/year More than 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 77.96 $/year More than 25% lower annual commercial energy cost
Front view of AMD Athlon 2800+

Reasons to consider the
AMD Athlon 2800+

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CPUBoss is not aware of any important advantages of the AMD Athlon 2800+ vs the Intel Core2 Duo E8400.

Benchmarks Real world tests of Core2 Duo E8400 vs Athlon 2800+

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Athlon 2800+ 
Clock speed 3 GHz 1.8 GHz
Cores Dual core Single core
Socket type
LGA 775
754
462

features

Has a NX bit Yes Yes
Has virtualization support Yes No
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 89W
Annual home energy cost 15.66 $/year 21.44 $/year
Annual commercial energy cost 56.94 $/year 77.96 $/year
Performance per watt 1.83 pt/W 0.42 pt/W
Typical power consumption 52.81W 72.31W

bus

Clock speed 1,333 MHz 266 MHz

details

Core2 Duo E8400  vs
Athlon 2800+ 
Architecture x86-64 x86-64
Threads 2 1
L2 cache 6 MB 1 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 72.4°C Unknown - 70°C

overclocking

Overclock popularity 125 1
Overclock review score 4.5 0
Overclocked clock speed 4.22 GHz 2.57 GHz
Overclocked clock speed (Water) 4.23 GHz 2.13 GHz
Overclocked clock speed (Air) 4.22 GHz 2.57 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 Core2 Duo E8400
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AMD Athlon 2800+
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