CPUBoss Review Our evaluation of E8400 vs N850 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

No winner declared

Too close to call

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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 0.5 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 3 GHz vs 2.2 GHz More than 35% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.17 MB/core More than 18x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 2.21 GHz More than 90% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,251 vs 730 More than 70% better PassMark (Single core) score
Much better overclocked clock speed (Water) 4.23 GHz vs 2.2 GHz More than 90% better overclocked clock speed (Water)
Front view of AMD Phenom II N850

Reasons to consider the
AMD Phenom II N850

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Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Newer Oct, 2010 vs Jan, 2008 Release date over 2 years later
More cores 3 vs 2 1 more cores; run more applications at once
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo E8400 vs Phenom II N850

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
Phenom II N850
110.25 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
Phenom II N850 
Clock speed 3 GHz 2.2 GHz
Cores Dual core Tri core
Socket type
LGA 775
S1

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 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Performance per watt 1.83 pt/W 1.94 pt/W
Typical power consumption 52.81W 28.44W

details

Core2 Duo E8400  vs
Phenom II N850 
Architecture x86-64 x86-64
Threads 2 3
L2 cache 6 MB 0.5 MB
L2 cache per core 3 MB/core 0.17 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 4.22 GHz 2.21 GHz
Overclocked clock speed (Water) 4.23 GHz 2.2 GHz
Overclocked clock speed (Air) 4.22 GHz 2.21 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

Clock speed 1,333 MHz 1,800 MHz
Intel Core2 Duo E8400
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AMD Phenom II N850
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