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Differences What are the advantages of each

Front view of Intel Pentium 4 745

Reasons to consider the
Intel Pentium 4 745

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CPUBoss is not aware of any important advantages of the Pentium 4 745 vs the Core2 Quad Q8400.

Front view of Intel Core2 Quad Q8400

Reasons to consider the
Intel Core2 Quad Q8400

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines

Features Key features of the Pentium 4 745  vs Core2 Quad Q8400 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Pentium 4 745  vs
Core2 Quad Q8400 
Clock speed 3 GHz 2.66 GHz
Cores Single core Quad core
Socket type
478
LGA 775

features

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

power consumption

TDP 81.9W 95W
Annual home energy cost 19.73 $/year 51.39 $/year
Annual commercial energy cost 71.74 $/year 130.79 $/year
Typical power consumption 66.54W 135.97W

details

Pentium 4 745  vs
Core2 Quad Q8400 
Architecture x86 x86-64
Threads 2 4
L2 cache 0.5 MB 4 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 130 nm 45 nm
Transistor count 55,000,000 456,000,000
Max CPUs 1 1
Clock multiplier 15 8
Voltage range 1.25 - 1.4V 0.85 - 1.36V
Operating temperature Unknown - 70°C Unknown - 71.4°C

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

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 1,333 MHz
Intel Pentium 4 745
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Intel Core2 Quad Q8400
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