CPUBoss Review Our evaluation of E8400 vs 450 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

5.7

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo E8400 

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

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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 more l2 cache 6 MB vs 1.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better performance per dollar 13.18 pt/$ vs 2.23 pt/$ Around 6x better performance per dollar
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Significantly lower typical power consumption 52.81W vs 113.2W 2.1x lower typical power consumption
Better cinebench r10 32Bit 1-core score 3,647 vs 3,439 More than 5% better cinebench r10 32Bit 1-core score
Much lower annual home energy cost 15.66 $/year vs 39.59 $/year 2.5x lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 113.44 $/year Around 50% lower annual commercial energy cost
Slightly better performance per watt 1.83 pt/W vs 1.07 pt/W More than 70% better performance per watt
Better overclocked clock speed (Water) 4.17 GHz vs 3.1 GHz Around 35% better overclocked clock speed (Water)
Front view of AMD Athlon II X3 450

Reasons to consider the
AMD Athlon II X3 450

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Higher clock speed 3.2 GHz vs 3 GHz More than 5% higher clock speed
Newer Sep, 2010 vs Jan, 2008 Release date over 2 years later
Better geekbench 3 AES single core score 128,950 MB/s vs 128,000 MB/s Almost the same
Slightly higher Maximum operating temperature 75 °C vs 72.4 °C Around 5% higher Maximum operating temperature

Benchmarks Real world tests of Core2 Duo E8400 vs Athlon II X3 450

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 II X3 450
128,950 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-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 II X3 450 
Clock speed 3 GHz 3.2 GHz
Cores Dual core Tri core
Socket type
LGA 775
AM3
Super 7

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 39.59 $/year
Annual commercial energy cost 56.94 $/year 113.44 $/year
Performance per watt 1.83 pt/W 1.07 pt/W
Typical power consumption 52.81W 113.2W

bus

Clock speed 1,333 MHz 100 MHz

details

Core2 Duo E8400  vs
Athlon II X3 450 
Architecture x86-64 x86-64
Threads 2 3
L2 cache 6 MB 1.5 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 0.85 - 1.36V 0.85 - 1.4V
Operating temperature Unknown - 72.4°C Unknown - 75°C

overclocking

Overclock popularity 125 16
Overclocked clock speed 4.23 GHz 3.86 GHz
Overclocked clock speed (Water) 4.17 GHz 3.1 GHz
Overclocked clock speed (Air) 4.23 GHz 3.86 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 II X3 450
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