Intel Xeon L5420 vs E5450 |
Released March, 2008
Intel Xeon L5420
- 2.5 GHz
- Quad core
Reasons to buy the Intel Xeon L5420
 | Significantly lower typical power consumption 40.63W | | Significantly lower annual commercial energy cost 43.8 $/year |
| | Significantly lower annual home energy cost 12.04 $/year |
VS
Released November, 2007
Intel Xeon E5450
- 3 GHz
- Quad core
Reasons to buy the E5450
| | Much higher clock speed 3 GHz | | Better overclocked clock speed (Air) 3.83 GHz |
| | Significantly better overclocked clock speed (Water) 4.1 GHz |
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| |  | Intel Xeon E5450CPUBoss Winner |
Differences What are the advantages of each
| |||||||
| Significantly lower typical power consumption | 40.63W | vs | 65W | Around 40% lower typical power consumption | |||
|---|---|---|---|---|---|---|---|
| Significantly lower annual commercial energy cost | 43.8 $/year | vs | 70.08 $/year | Around 40% lower annual commercial energy cost | |||
| Significantly lower annual home energy cost | 12.04 $/year | vs | 19.27 $/year | More than 35% lower annual home energy cost | |||
| |||||||
| Much higher clock speed | 3 GHz | vs | 2.5 GHz | 20% higher clock speed | |||
| Better overclocked clock speed (Air) | 3.83 GHz | vs | 3.67 GHz | Around 5% better overclocked clock speed (Air) | |||
| Significantly better overclocked clock speed (Water) | 4.1 GHz | vs | 3.85 GHz | More than 5% better overclocked clock speed (Water) | |||
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Benchmarks Real world tests of Xeon L5420 vs E5450
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
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench (64-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Xeon L5420 | vs | E5450 |
|---|---|---|---|
| Clock speed | 2.5 GHz | 3 GHz | |
| Cores | Quad core | Quad core | |
| Socket type | |||
| LGA 771 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 50W | 80W | |
| Annual home energy cost | 12.04 $/year | 19.27 $/year | |
| Annual commercial energy cost | 43.8 $/year | 70.08 $/year | |
| Performance per watt | 2.75 pt/W | 2.1 pt/W | |
| Typical power consumption | 40.63W | 65W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
| Clock speed | 1,333 MHz | 1,333 MHz | |
details | Xeon L5420 | vs | E5450 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 4 | 4 | |
| L2 cache | 12 MB | 12 MB | |
| L2 cache per core | 3 MB/core | 3 MB/core | |
| Manufacture process | 45 nm | 45 nm | |
| Transistor count | 820,000,000 | 820,000,000 | |
| Max CPUs | 2 | 2 | |
| Clock multiplier | 7 | 9 | |
| Voltage range | 0.85 - 1.35V | 0.85 - 1.35V | |
| Operating temperature | Unknown - 57°C | Unknown - 67°C | |
overclocking | |||
| Overclocked clock speed | 3.67 GHz | 3.83 GHz | |
| Overclocked clock speed (Water) | 3.85 GHz | 4.1 GHz | |
| Overclocked clock speed (Air) | 3.67 GHz | 3.83 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 Xeon L5420  Report a correction |  Intel Xeon E5450 Report a correction |
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