CPUBoss Review Our evaluation of P7450 vs N2940 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

7.9

CPUBoss Score

Combination of all six facets

Winner
Intel Core2 Duo P7450 

CPUBoss recommends the Intel Core2 Duo P7450  based on its performance and single-core performance.

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VS

Differences What are the advantages of each

Front view of Intel Core2 Duo P7450

Reasons to consider the
Intel Core2 Duo P7450

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Much better 3DMark06 CPU score 1,900 vs 23 More than 82.5x better 3DMark06 CPU score
Much better geekbench 3 AES single core score 87,200 MB/s vs 52,800 MB/s More than 65% better geekbench 3 AES single core score
Significantly more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 2.13 GHz vs 1.83 GHz More than 15% higher clock speed
Much more l2 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l2 cache per core
Better overclocked clock speed (Air) 2.68 GHz vs 2.25 GHz Around 20% better overclocked clock speed (Air)
Front view of Intel Celeron N2940

Reasons to consider the
Intel Celeron N2940

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Lower typical power consumption 6.09W vs 20.31W 3.3x lower typical power consumption
Significantly better performance per watt 7.82 pt/W vs 3.57 pt/W Around 2.2x better performance per watt
Newer Jul, 2014 vs Jan, 2009 Release date over 5 years later
More cores 4 vs 2 Twice as many cores; run more applications at once
Better geekbench 3 Multi-Core score 2,768 vs 2,093 More than 30% better geekbench 3 Multi-Core score
More threads 4 vs 2 Twice as many threads
Lower annual home energy cost 1.81 $/year vs 6.02 $/year 3.3x lower annual home energy cost
Lower annual commercial energy cost 6.57 $/year vs 21.9 $/year 3.3x lower annual commercial energy cost

Benchmarks Real world tests of Core2 Duo P7450 vs Celeron N2940

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 P7450
87,200 MB/s
Celeron N2940
52,800 MB/s

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core2 Duo P7450  vs
Celeron N2940 
Clock speed 2.13 GHz 1.83 GHz
Cores Dual core Quad core

features

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

power consumption

TDP 25W 7.5W
Annual home energy cost 6.02 $/year 1.81 $/year
Annual commercial energy cost 21.9 $/year 6.57 $/year
Performance per watt 3.57 pt/W 7.82 pt/W
Typical power consumption 20.31W 6.09W

details

Core2 Duo P7450  vs
Celeron N2940 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 3 MB 2 MB
L2 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.68 GHz 2.25 GHz
Overclocked clock speed (Water) 2.13 GHz 2.25 GHz
Overclocked clock speed (Air) 2.68 GHz 2.25 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 2
GPU clock speed N/A 313 MHz
Turbo clock speed N/A 854 MHz

bus

Architecture FSB FSB
Number of links 1 1
Intel Core2 Duo P7450
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Intel Celeron N2940
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