Intel Xeon E3-1271 v3 vs Core i7 4790K |
Released April, 2014
Intel Xeon E3-1271 v3
- 3.6 GHz
- Quad core
Reasons to buy the Intel Xeon E3-1271 v3
 | Supports trusted computing Yes | | Lower typical power consumption 65W |
| | Lower annual home energy cost 19.27 $/year | | Lower annual commercial energy cost 70.08 $/year |
VS
Released April, 2014
Intel Core i7 4790K
- 4 GHz
- Quad core
- Unlocked
Reasons to buy the Core i7 4790K
| | Much better performance per dollar 3.69 pt/$ | | Has a built-in GPU Yes |
| | Higher clock speed 4 GHz | | Higher turbo clock speed 4.4 GHz |
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| |  | Intel Core i7 4790KCPUBoss Winner |
Differences What are the advantages of each
| |||||||
| Supports trusted computing | Yes | vs | No | Somewhat common; Allows for safer, more reliable computing | |||
|---|---|---|---|---|---|---|---|
| Lower typical power consumption | 65W | vs | 71.5W | Around 10% lower typical power consumption | |||
| Lower annual home energy cost | 19.27 $/year | vs | 21.2 $/year | Around 10% lower annual home energy cost | |||
| Lower annual commercial energy cost | 70.08 $/year | vs | 77.09 $/year | Around 10% lower annual commercial energy cost | |||
| |||||||
| Much better performance per dollar | 3.69 pt/$ | vs | 0.8 pt/$ | Around 4.8x better performance per dollar | |||
| Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
| Higher clock speed | 4 GHz | vs | 3.6 GHz | More than 10% higher clock speed | |||
| Higher turbo clock speed | 4.4 GHz | vs | 4 GHz | More than 10% higher turbo clock speed | |||
| Much better performance per watt | 11.42 pt/W | vs | 3.4 pt/W | More than 3.2x better performance per watt | |||
| Better overclocked clock speed (Air) | 4.63 GHz | vs | 4.05 GHz | Around 15% better overclocked clock speed (Air) | |||
| Better PassMark (Single core) score | 2,530 | vs | 2,266 | More than 10% better PassMark (Single core) score | |||
| Better PassMark score | 11,194 | vs | 10,063 | More than 10% better PassMark score | |||
| Significantly better overclocked clock speed (Water) | 4.8 GHz | vs | 3.88 GHz | Around 25% better overclocked clock speed (Water) | |||
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Benchmarks Real world tests of Xeon E3-1271 v3 vs Core i7 4790K
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 E3-1271 v3 | vs | Core i7 4790K |
|---|---|---|---|
| Clock speed | 3.6 GHz | 4 GHz | |
| Turbo clock speed | 4 GHz | 4.4 GHz | |
| Cores | Quad core | Quad core | |
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | No | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| F16C | |||
| MMX | |||
| SSE4 | |||
| AVX | |||
| SSE3 | |||
| EM64T | |||
| SSE | |||
| SSE4.1 | |||
| FMA3 | |||
| SSE4.2 | |||
| Supplemental SSE3 | |||
| AES | |||
| AVX 2.0 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 80W | 88W | |
| Annual home energy cost | 19.27 $/year | 21.2 $/year | |
| Annual commercial energy cost | 70.08 $/year | 77.09 $/year | |
| Performance per watt | 3.4 pt/W | 11.42 pt/W | |
| Typical power consumption | 65W | 71.5W | |
bus | |||
| Architecture | DMI 2.0 | DMI 2.0 | |
| Number of links | 0 | 0 | |
| Transfer rate | 5,000 MT/s | 5,000 MT/s | |
details | Xeon E3-1271 v3 | vs | Core i7 4790K |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 8 | 8 | |
| L3 cache | 8 MB | 8 MB | |
| L3 cache per core | 2 MB/core | 2 MB/core | |
| Manufacture process | 22 nm | 22 nm | |
| Max CPUs | 1 | 1 | |
overclocking | |||
| Overclocked clock speed | 4.05 GHz | 4.63 GHz | |
| Overclocked clock speed (Water) | 3.88 GHz | 4.8 GHz | |
| Overclocked clock speed (Air) | 4.05 GHz | 4.63 GHz | |
integrated graphics | |||
| GPU | None | GPU | |
| Label | N/A | Intel® HD Graphics 4600 | |
| Number of displays supported | N/A | 3 | |
| GPU clock speed | N/A | 350 MHz | |
| Turbo clock speed | N/A | 1,250 MHz | |
memory controller | |||
| Memory controller | Built-in | Built-in | |
| Memory type | |||
| DDR3-1600 | |||
| DDR3L-1600 | |||
| DDR3-1333 | |||
| DDR3 | |||
| Channels | Dual Channel | Dual Channel | |
| Supports ECC | Yes | No | |
| Maximum bandwidth | 25,600 MB/s | 25,600 MB/s | |
| Maximum memory size | 32,768 MB | 32,768 MB | |
 Intel Xeon E3-1271 v3  Report a correction |  Intel Core i7 4790K Report a correction |
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