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Intel Pentium 4 531

Front view of Intel Pentium 4 531
Front view of Intel Core2 Duo E8400

Intel Core2 Duo E8400

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Differences What are the advantages of each

Front view of Intel Pentium 4 531

Reasons to consider the
Intel Pentium 4 531

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CPUBoss is not aware of any important advantages of the Pentium 4 531 vs the Core2 Duo E8400.
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 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 45 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 2 vs 1 Twice as many cores; run more applications at once
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
Much better performance per watt 1.83 pt/W vs 1.03 pt/W Around 80% better performance per watt
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Air) 4.22 GHz vs 3.82 GHz More than 10% better overclocked clock speed (Air)
Significantly lower typical power consumption 52.81W vs 68.25W Around 25% lower typical power consumption
Significantly higher Maximum operating temperature 72.4 °C vs 67.7 °C More than 5% higher Maximum operating temperature
Newer Jan, 2008 vs Apr, 2004 Release date over 3 years later
Significantly lower annual home energy cost 15.66 $/year vs 20.24 $/year Around 25% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 73.58 $/year Around 25% lower annual commercial energy cost
Slightly better overclocked clock speed (Water) 4.23 GHz vs 4.15 GHz Almost the same

Benchmarks Real world tests of Pentium 4 531 vs Core2 Duo E8400

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Pentium 4 531
927
Core2 Duo E8400
2,982

GeekBench 3 (Single core) Data courtesy Primate Labs

Pentium 4 531
788
Core2 Duo E8400
1,625

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium 4 531
104,050 MB/s
Core2 Duo E8400
128,000 MB/s

Specifications Full list of technical specs

summary

 Pentium 4 531  vs
Core2 Duo E8400 
Clock speed 3 GHz 3 GHz
Cores Single core Dual core
Socket type
LGA 775

features
Has a NX bit Yes Yes
Supports trusted computing 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 84W 65W
Annual home energy cost 20.24 $/year 15.66 $/year
Annual commercial energy cost 73.58 $/year 56.94 $/year
Performance per watt 1.03 pt/W 1.83 pt/W
Typical power consumption 68.25W 52.81W

bus
Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 1,333 MHz

details

 Pentium 4 531  vs
Core2 Duo E8400 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 1 MB 6 MB
L2 cache per core 1 MB/core 3 MB/core
Manufacture process 90 nm 45 nm
Transistor count 125,000,000 410,000,000
Max CPUs 1 1
Clock multiplier 15 9
Voltage range 1.2 - 1.43V 0.85 - 1.36V
Operating temperature Unknown - 67.7°C Unknown - 72.4°C

overclocking
Overclocked clock speed 3.82 GHz 4.22 GHz
Overclocked clock speed (Water) 4.15 GHz 4.23 GHz
Overclocked clock speed (Air) 3.82 GHz 4.22 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 Pentium 4 531
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Intel Core2 Duo E8400
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