Intel Xeon X5670 vs E5645 |
Released March, 2010
Intel Xeon X5670
- 2.93 GHz
- Hexa core
Reasons to buy the Intel Xeon X5670
 | Much higher clock speed 2.93 GHz | | Much higher turbo clock speed 3.33 GHz |
| | Much higher Maximum operating temperature 81.3 °C | | Much better overclocked clock speed (Air) 4.29 GHz |
VS
Released March, 2010
Intel Xeon E5645
- 2.4 GHz
- Hexa core
Reasons to buy the E5645
| | Much better performance per dollar 1.2 pt/$ | | Lower typical power consumption 65W |
| | Lower annual commercial energy cost 70.08 $/year | | Lower annual home energy cost 19.27 $/year |
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Differences What are the advantages of each
| |||||||
| Much higher clock speed | 2.93 GHz | vs | 2.4 GHz | More than 20% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Much higher turbo clock speed | 3.33 GHz | vs | 2.67 GHz | Around 25% higher turbo clock speed | |||
| Much higher Maximum operating temperature | 81.3 °C | vs | 76.2 °C | More than 5% higher Maximum operating temperature | |||
| Much better overclocked clock speed (Air) | 4.29 GHz | vs | 3.39 GHz | More than 25% better overclocked clock speed (Air) | |||
| Much better overclocked clock speed (Water) | 4.5 GHz | vs | 2.4 GHz | More than 85% better overclocked clock speed (Water) | |||
| |||||||
| Much better performance per dollar | 1.2 pt/$ | vs | 0.56 pt/$ | Around 2.2x better performance per dollar | |||
| Lower typical power consumption | 65W | vs | 77.19W | More than 15% lower typical power consumption | |||
| Lower annual commercial energy cost | 70.08 $/year | vs | 83.22 $/year | More than 15% lower annual commercial energy cost | |||
| Lower annual home energy cost | 19.27 $/year | vs | 22.89 $/year | More than 15% lower annual home energy cost | |||
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Benchmarks Real world tests of Xeon X5670 vs E5645
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 X5670 | vs | E5645 |
|---|---|---|---|
| Clock speed | 2.93 GHz | 2.4 GHz | |
| Turbo clock speed | 3.33 GHz | 2.67 GHz | |
| Cores | Hexa core | Hexa core | |
| Socket type | |||
| LGA 1366 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 95W | 80W | |
| Annual home energy cost | 22.89 $/year | 19.27 $/year | |
| Annual commercial energy cost | 83.22 $/year | 70.08 $/year | |
| Performance per watt | 8.54 pt/W | 8.49 pt/W | |
| Typical power consumption | 77.19W | 65W | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3-800 | |||
| DDR3 | |||
| Channels | Triple Channel | Triple Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 31,999.98 MB/s | 31,999.98 MB/s | |
| Maximum memory size | 294,912 MB | 294,912 MB | |
details | Xeon X5670 | vs | E5645 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 12 | 12 | |
| L2 cache | 2 MB | 2 MB | |
| L2 cache per core | 0.33 MB/core | 0.33 MB/core | |
| L3 cache | 12 MB | 12 MB | |
| L3 cache per core | 2 MB/core | 2 MB/core | |
| Manufacture process | 32 nm | 32 nm | |
| Max CPUs | 2 | 2 | |
| Clock multiplier | 22 | 18 | |
| Voltage range | 0.75 - 1.35V | 0.75 - 1.35V | |
| Operating temperature | Unknown - 81.3°C | Unknown - 76.2°C | |
overclocking | |||
| Overclock popularity | 8 | 3 | |
| Overclocked clock speed | 4.29 GHz | 3.39 GHz | |
| Overclocked clock speed (Water) | 4.5 GHz | 2.4 GHz | |
| Overclocked clock speed (Air) | 4.29 GHz | 3.39 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 | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 2 | 2 | |
| Data rate | 51,200 MB/s | 46,928 MB/s | |
| Transfer rate | 6,400 MT/s | 5,860 MT/s | |
| Clock speed | 3,200 MHz | 2,930 MHz | |
 Intel Xeon X5670  Report a correction |  Intel Xeon E5645 Report a correction |
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