Intel Xeon E5-4655 v3 vs E5-2643 v3 |
Released April, 2015
Intel Xeon E5-4655 v3
- 2.9 GHz
- Hexa core
Reasons to buy the Intel Xeon E5-4655 v3
 | Supports more CPUs in SMP configuration 4 | | Better geekbench 3 Multi-Core score 19,858 |
| | Higher Maximum operating temperature 84.4 °C | | Newer Apr, 2015 |
VS
Released July, 2014
Intel Xeon E5-2643 v3
- 3.4 GHz
- Hexa core
Reasons to buy the E5-2643 v3
| | Much better geekbench 3 AES single core score 3,275,000 MB/s | | Higher clock speed 3.4 GHz |
| | Higher turbo clock speed 3.7 GHz | | Much better performance per dollar 0.92 pt/$ |
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Differences What are the advantages of each
| |||||||
| Supports more CPUs in SMP configuration | 4 | vs | 2 | Twice as many CPUs in SMP configuration | |||
|---|---|---|---|---|---|---|---|
| Better geekbench 3 Multi-Core score | 19,858 | vs | 18,586 | More than 5% better geekbench 3 Multi-Core score | |||
| Higher Maximum operating temperature | 84.4 °C | vs | 77.3 °C | Around 10% higher Maximum operating temperature | |||
| Newer | Apr, 2015 | vs | Jul, 2014 | Release date 9 months later | |||
| |||||||
| Much better geekbench 3 AES single core score | 3,275,000 MB/s | vs | 3,620 MB/s | Around 904.8x better geekbench 3 AES single core score | |||
| Higher clock speed | 3.4 GHz | vs | 2.9 GHz | More than 15% higher clock speed | |||
| Higher turbo clock speed | 3.7 GHz | vs | 3.2 GHz | More than 15% higher turbo clock speed | |||
| Much better performance per dollar | 0.92 pt/$ | vs | 0.06 pt/$ | More than 15x better performance per dollar | |||
| Much better performance per watt | 10.54 pt/W | vs | 2.08 pt/W | More than 5x better performance per watt | |||
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Benchmarks Real world tests of Xeon E5-4655 v3 vs E5-2643 v3
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
Specifications Full list of technical specs
summary | Xeon E5-4655 v3 | vs | E5-2643 v3 |
|---|---|---|---|
| Clock speed | 2.9 GHz | 3.4 GHz | |
| Turbo clock speed | 3.2 GHz | 3.7 GHz | |
| Cores | Hexa core | Hexa core | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| AES | |||
| AVX | |||
| AVX 2.0 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Channels | Quad Channel | Quad Channel | |
| Supports ECC | Yes | Yes | |
| Maximum memory size | 786,432 MB | 786,432 MB | |
details | Xeon E5-4655 v3 | vs | E5-2643 v3 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 12 | 12 | |
| Manufacture process | 22 nm | 22 nm | |
| Max CPUs | 4 | 2 | |
| Operating temperature | Unknown - 84.4°C | Unknown - 77.3°C | |
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 | |
power consumption | |||
| TDP | 135W | 135W | |
| Annual home energy cost | 32.52 $/year | 32.52 $/year | |
| Annual commercial energy cost | 118.26 $/year | 118.26 $/year | |
| Performance per watt | 2.08 pt/W | 10.54 pt/W | |
| Typical power consumption | 109.69W | 109.69W | |
bus | |||
| Architecture | QPI | QPI | |
| Number of links | 2 | 2 | |
| Data rate | 76,800 MB/s | 76,800 MB/s | |
| Transfer rate | 9,600 MT/s | 9,600 MT/s | |
| Clock speed | 4,800 MHz | 4,800 MHz | |
 Intel Xeon E5-4655 v3  Report a correction |  Intel Xeon E5-2643 v3 Report a correction |
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