Intel Pentium 755 vs Core2 Duo E8400 |
Released May, 2004
Intel Pentium 755
- 2 GHz
- Single core
Reasons to buy the Intel Pentium 755
 | Much lower typical power consumption 6.09W | | Much lower annual home energy cost 1.81 $/year |
| | Much lower annual commercial energy cost 6.57 $/year |
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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 |
| | Significantly higher clock speed 3 GHz | | More advanced architecture x86-64 |
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Differences What are the advantages of each
| |||||||
| Much lower typical power consumption | 6.09W | vs | 52.81W | 8.7x lower typical power consumption | |||
|---|---|---|---|---|---|---|---|
| Much lower annual home energy cost | 1.81 $/year | vs | 15.66 $/year | 8.7x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 6.57 $/year | vs | 56.94 $/year | 8.7x lower annual commercial energy cost | |||
| |||||||
| Much more l2 cache | 6 MB | vs | 2 MB | 3x 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 | |||
| Significantly higher clock speed | 3 GHz | vs | 2 GHz | 50% higher clock speed | |||
| More advanced architecture | x86-64 | vs | x86 | A 64-bit architecture allows more RAM to be installed and accessed by the processor | |||
| 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 | |||
| Much more l2 cache per core | 3 MB/core | vs | 2 MB/core | 50% more l2 cache per core | |||
| Much better overclocked clock speed (Air) | 4.22 GHz | vs | 2.35 GHz | More than 80% better overclocked clock speed (Air) | |||
| Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
| Newer | Jan, 2008 | vs | May, 2004 | Release date over 3 years later | |||
| Much better overclocked clock speed (Water) | 4.23 GHz | vs | 2 GHz | More than 2x better overclocked clock speed (Water) | |||
| More cores | 2 | vs | 1 | Twice as many cores; run more applications at once | |||
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Features Key features of the Pentium 755 vs Core2 Duo E8400
clock speed
L2 cache
overclocked clock speed (air)
overclocked clock speed (water)
TDP
Specifications Full list of technical specs
summary | Pentium 755 | vs | Core2 Duo E8400 |
|---|---|---|---|
| Clock speed | 2 GHz | 3 GHz | |
| Cores | Single core | Dual core | |
| Socket type | |||
| 479 | |||
| LGA 775 | |||
features | |||
| Has a NX bit | No | 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 | Yes | Yes | |
power consumption | |||
| TDP | 7.5W | 65W | |
| Annual home energy cost | 1.81 $/year | 15.66 $/year | |
| Annual commercial energy cost | 6.57 $/year | 56.94 $/year | |
| Typical power consumption | 6.09W | 52.81W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
| Clock speed | 400 MHz | 1,333 MHz | |
details | Pentium 755 | vs | Core2 Duo E8400 |
|---|---|---|---|
| Architecture | x86 | x86-64 | |
| Threads | 1 | 2 | |
| L2 cache | 2 MB | 6 MB | |
| L2 cache per core | 2 MB/core | 3 MB/core | |
| Manufacture process | 90 nm | 45 nm | |
| Transistor count | 144,000,000 | 410,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 20 | 9 | |
| Voltage range | 0.99 - 1.34V | 0.85 - 1.36V | |
overclocking | |||
| Overclocked clock speed | 2.35 GHz | 4.22 GHz | |
| Overclocked clock speed (Water) | 2 GHz | 4.23 GHz | |
| Overclocked clock speed (Air) | 2.35 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 755  Report a correction |  Intel Core2 Duo E8400 Report a correction |
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