Intel Xeon E5-4640 vs E5-2650 |
Released May, 2012
Intel Xeon E5-4640
- 2.4 GHz
- Octa core
Reasons to buy the Intel Xeon E5-4640
 | Much higher clock speed 2.4 GHz | | Much better PassMark (Single core) score 1,423 |
| | Supports more CPUs in SMP configuration 4 | | Much better overclocked clock speed (Water) 2.4 GHz |
VS
Released March, 2012
Intel Xeon E5-2650
- 2 GHz
- Octa core
Reasons to buy the E5-2650
| | Much better performance per watt 6.61 pt/W |
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Differences What are the advantages of each
| |||||||
| Much higher clock speed | 2.4 GHz | vs | 2 GHz | Around 20% higher clock speed | |||
|---|---|---|---|---|---|---|---|
| Much better PassMark (Single core) score | 1,423 | vs | 1,297 | Around 10% better PassMark (Single core) score | |||
| Supports more CPUs in SMP configuration | 4 | vs | 2 | Twice as many CPUs in SMP configuration | |||
| Much better overclocked clock speed (Water) | 2.4 GHz | vs | 2 GHz | Around 20% better overclocked clock speed (Water) | |||
| Better overclocked clock speed (Air) | 2.63 GHz | vs | 2.55 GHz | Around 5% better overclocked clock speed (Air) | |||
| |||||||
| Much better performance per watt | 6.61 pt/W | vs | 1.83 pt/W | More than 3.5x better performance per watt | |||
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Benchmarks Real world tests of Xeon E5-4640 vs E5-2650
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
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Xeon E5-4640 | vs | E5-2650 |
|---|---|---|---|
| Clock speed | 2.4 GHz | 2 GHz | |
| Turbo clock speed | 2.8 GHz | 2.8 GHz | |
| Cores | Octa core | Octa core | |
| Socket type | |||
| LGA 2011 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 95W | 95W | |
| Annual home energy cost | 22.89 $/year | 22.89 $/year | |
| Annual commercial energy cost | 83.22 $/year | 83.22 $/year | |
| Performance per watt | 1.83 pt/W | 6.61 pt/W | |
| Typical power consumption | 77.19W | 77.19W | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 2 | 2 | |
| Data rate | 64,000 MB/s | 64,000 MB/s | |
| Transfer rate | 8,000 MT/s | 8,000 MT/s | |
| Clock speed | 4,000 MHz | 4,000 MHz | |
details | Xeon E5-4640 | vs | E5-2650 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 16 | 16 | |
| L2 cache | 2 MB | 2 MB | |
| L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
| L3 cache | 20 MB | 20 MB | |
| L3 cache per core | 2.5 MB/core | 2.5 MB/core | |
| Manufacture process | 32 nm | 32 nm | |
| Max CPUs | 4 | 2 | |
| Voltage range | 0.6 - 1.35V | 0.6 - 1.35V | |
overclocking | |||
| Overclocked clock speed | 2.63 GHz | 2.55 GHz | |
| Overclocked clock speed (Water) | 2.4 GHz | 2 GHz | |
| Overclocked clock speed (Air) | 2.63 GHz | 2.55 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 | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1600 | |||
| DDR3-1333 | |||
| DDR3-1066 | |||
| DDR3 | |||
| DDR3-800 | |||
| Channels | Quad Channel | Quad Channel | |
| Supports ECC | Yes | Yes | |
| Maximum bandwidth | 51,200 MB/s | 51,200 MB/s | |
| Maximum memory size | 393,216 MB | 393,216 MB | |
 Intel Xeon E5-4640  Report a correction |  Intel Xeon E5-2650 Report a correction |
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