CPUBoss Review Our evaluation of P8400 vs 4025U among laptop 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

6.5

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo P8400 

CPUBoss recommends the Intel Core2 Duo P8400  based on its .

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VS

Differences What are the advantages of each

Front view of Intel Core2 Duo P8400

Reasons to consider the
Intel Core2 Duo P8400

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Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Front view of Intel Core i3 4025U

Reasons to consider the
Intel Core i3 4025U

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required

Benchmarks Real world tests of Core2 Duo P8400 vs Core i3 4025U

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 P8400
95,500 MB/s
Core i3 4025U
2,415 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo P8400  vs
Core i3 4025U 
Clock speed 2.26 GHz 1.9 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 25W 15W
Annual home energy cost 6.02 $/year 3.61 $/year
Performance per watt 3.83 pt/W 6.62 pt/W
Typical power consumption 20.31W 12.19W

details

Core2 Duo P8400  vs
Core i3 4025U 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 3 MB 0.5 MB
L2 cache per core 1.5 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.54 GHz 1.9 GHz
Overclocked clock speed (Water) 2.26 GHz 1.9 GHz
Overclocked clock speed (Air) 2.54 GHz 1.9 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics 4400
Number of displays supported N/A 3
GPU clock speed N/A 200 MHz
Turbo clock speed N/A 950 MHz

bus

Architecture FSB DMI 2.0
Number of links 1 1
Intel Core2 Duo P8400
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Intel Core i3 4025U
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