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| Intel Pentium 4 531 vs Core2 Duo E8400 |
VS
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Core2 Duo E8400
![]() | Much more l2 cache 6 MB | ![]() | Much newer manufacturing process 45 nm |
![]() | More cores 2 | ![]() | Supports dynamic frequency scaling Yes |
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Differences What are the advantages of each
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CPUBoss is not aware of any important advantages of the Pentium 4 531 vs the 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 | |||
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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 ![]() | Intel Core2 Duo E8400 ![]() |
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