Intel Xeon E5 2643 v2 vs Core i7 6700 |
Expected September, 2013
Intel Xeon E5 2643 v2
- 3.5 GHz
- Hexa core
Reasons to buy the Intel Xeon E5 2643 v2
 | Much more l2 cache 2.5 MB | | Much more l3 cache 25 MB |
| | Much more l3 cache per core 4.17 MB/core | | More threads 20 |
VS
Released July, 2015
Intel Core i7 6700
- 3.4 GHz
- Quad core
Reasons to buy the Core i7 6700
| | Has a built-in GPU Yes | | Much lower typical power consumption 52.81W |
| | Significantly newer manufacturing process 14 nm | | Slightly higher turbo clock speed 4 GHz |
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Differences What are the advantages of each
| |||||||
| Much more l2 cache | 2.5 MB | vs | 1 MB | 2.5x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| Much more l3 cache | 25 MB | vs | 8 MB | Around 3.2x more l3 cache; more data can be stored in the l3 cache for quick access later | |||
| Much more l3 cache per core | 4.17 MB/core | vs | 2 MB/core | More than 2x more l3 cache per core | |||
| More threads | 20 | vs | 8 | 12 more threads | |||
| Much better performance per watt | 10.7 pt/W | vs | 4.09 pt/W | More than 2.5x better performance per watt | |||
| Supports more CPUs in SMP configuration | 2 | vs | 1 | Twice as many CPUs in SMP configuration | |||
| Supports more RAM | 786,432 MB | vs | 65,536 MB | Supports 12x more RAM | |||
| More cores | 6 | vs | 4 | 2 more cores; run more applications at once | |||
| More l2 cache per core | 0.42 MB/core | vs | 0.25 MB/core | More than 65% more l2 cache per core | |||
| |||||||
| Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
| Much lower typical power consumption | 52.81W | vs | 105.63W | 2x lower typical power consumption | |||
| Significantly newer manufacturing process | 14 nm | vs | 22 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Slightly higher turbo clock speed | 4 GHz | vs | 3.8 GHz | More than 5% higher turbo clock speed | |||
| Much lower annual home energy cost | 15.66 $/year | vs | 31.32 $/year | 2x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 56.94 $/year | vs | 113.88 $/year | 2x lower annual commercial energy cost | |||
| Better overclocked clock speed (Air) | 3.98 GHz | vs | 3.57 GHz | More than 10% better overclocked clock speed (Air) | |||
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Features Key features of the Xeon E5 2643 v2 vs Core i7 6700
clock speed
turbo clock speed
L2 cache
L3 cache
overclocked clock speed (air)
overclocked clock speed (water)
Specifications Full list of technical specs
summary | Xeon E5 2643 v2 | vs | Core i7 6700 |
|---|---|---|---|
| Clock speed | 3.5 GHz | 3.4 GHz | |
| Turbo clock speed | 3.8 GHz | 4 GHz | |
| Cores | Hexa core | Quad core | |
| Is unlocked | No | No | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| AVX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| AVX 2.0 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 130W | 65W | |
| Annual home energy cost | 31.32 $/year | 15.66 $/year | |
| Annual commercial energy cost | 113.88 $/year | 56.94 $/year | |
| Performance per watt | 10.7 pt/W | 4.09 pt/W | |
| Typical power consumption | 105.63W | 52.81W | |
bus | |||
| Architecture | QPI | FSB | |
| Number of links | 2 | 1 | |
| Transfer rate | 8,000 MT/s | 8,000 MT/s | |
details | Xeon E5 2643 v2 | vs | Core i7 6700 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 20 | 8 | |
| L2 cache | 2.5 MB | 1 MB | |
| L2 cache per core | 0.42 MB/core | 0.25 MB/core | |
| L3 cache | 25 MB | 8 MB | |
| L3 cache per core | 4.17 MB/core | 2 MB/core | |
| Manufacture process | 22 nm | 14 nm | |
| Max CPUs | 2 | 1 | |
| Operating temperature | Unknown - 74°C | Unknown - 71°C | |
overclocking | |||
| Overclocked clock speed | 3.57 GHz | 3.98 GHz | |
| Overclocked clock speed (Water) | 4.07 GHz | 4.18 GHz | |
| Overclocked clock speed (Air) | 3.57 GHz | 3.98 GHz | |
integrated graphics | |||
| GPU | None | GPU | |
| Label | N/A | Intel® HD Graphics 530 | |
| Number of displays supported | N/A | 3 | |
| GPU clock speed | N/A | 350 MHz | |
| Turbo clock speed | N/A | 1,150 MHz | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3L-1600 | |||
| DDR3 | |||
| Channels | Quad Channel | Dual Channel | |
| Supports ECC | Yes | No | |
| Maximum bandwidth | 25,600 MB/s | 25,600 MB/s | |
| Maximum memory size | 786,432 MB | 65,536 MB | |
 Intel Xeon E5 2643 v2  Report a correction |  Intel Core i7 6700 Report a correction |
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