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| Intel Xeon W3520 vs Core i7 6700K |
Released March, 2009
Intel Xeon W3520
- 2.66 GHz
- Quad core
Reasons to buy the Intel Xeon W3520
![]() | Higher Maximum operating temperature 67.9 °C |
VS
Released July, 2015
Intel Core i7 6700K
- 4 GHz
- Quad core
- Unlocked
Reasons to buy the Core i7 6700K
![]() | Much higher clock speed 4 GHz | ![]() | Much newer manufacturing process 14 nm |
![]() | Significantly higher turbo clock speed 4.2 GHz | ![]() | Has a built-in GPU Yes |
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Differences What are the advantages of each
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Higher Maximum operating temperature | 67.9 °C | vs | 64 °C | More than 5% higher Maximum operating temperature | |||
---|---|---|---|---|---|---|---|
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Much higher clock speed | 4 GHz | vs | 2.66 GHz | More than 50% higher clock speed | |||
Much newer manufacturing process | 14 nm | vs | 45 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
Significantly higher turbo clock speed | 4.2 GHz | vs | 2.93 GHz | Around 45% higher turbo clock speed | |||
Has a built-in GPU | Yes | vs | No | Somewhat common; A separate graphics adapter is not required | |||
Much lower typical power consumption | 73.94W | vs | 105.63W | 30% lower typical power consumption | |||
Much better PassMark (Single core) score | 2,349 | vs | 1,196 | More than 95% better PassMark (Single core) score | |||
Significantly better PassMark score | 11,109 | vs | 5,061 | Around 2.2x better PassMark score | |||
Newer | Jul, 2015 | vs | Mar, 2009 | Release date over 6 years later | |||
Significantly better performance per dollar | 0.91 pt/$ | vs | 0.59 pt/$ | Around 55% better performance per dollar | |||
Better performance per watt | 3.49 pt/W | vs | 1.38 pt/W | More than 2.5x better performance per watt | |||
Much lower annual home energy cost | 21.92 $/year | vs | 31.32 $/year | 30% lower annual home energy cost | |||
Much lower annual commercial energy cost | 79.72 $/year | vs | 113.88 $/year | More than 30% lower annual commercial energy cost | |||
Better overclocked clock speed (Air) | 4.61 GHz | vs | 4.38 GHz | More than 5% better overclocked clock speed (Air) | |||
Better overclocked clock speed (Water) | 4.77 GHz | vs | 4.46 GHz | More than 5% better overclocked clock speed (Water) |
Benchmarks Real world tests of Xeon W3520 vs Core i7 6700K
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Xeon W3520
7,257
Core i7 6700K
17,583
GeekBench 3 (Single core) Data courtesy Primate Labs
Xeon W3520
1,935
Core i7 6700K
4,510
GeekBench 3 (AES single core) Data courtesy Primate Labs
Xeon W3520
117,600 MB/s
Core i7 6700K
6,010 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Xeon W3520
6,599
Core i7 6700K
17,169
GeekBench
Xeon W3520
9,166
Core i7 6700K
17,169
PassMark Data courtesy Passmark
Xeon W3520
5,061
Core i7 6700K
11,109
PassMark (Single Core)
Xeon W3520
1,196
Core i7 6700K
2,349
Specifications Full list of technical specs
summary | Xeon W3520 | vs | Core i7 6700K |
---|---|---|---|
Clock speed | 2.66 GHz | 4 GHz | |
Turbo clock speed | 2.93 GHz | 4.2 GHz | |
Cores | Quad core | Quad core | |
features | |||
Has a NX bit | Yes | Yes | |
Supports trusted computing | No | No | |
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 | 91W | |
Annual home energy cost | 31.32 $/year | 21.92 $/year | |
Annual commercial energy cost | 113.88 $/year | 79.72 $/year | |
Performance per watt | 1.38 pt/W | 3.49 pt/W | |
Typical power consumption | 105.63W | 73.94W | |
bus | |||
Architecture | QPI | FSB | |
Number of links | 1 | 0 | |
Transfer rate | 4,800 MT/s | 8,000 MT/s |
details | Xeon W3520 | vs | Core i7 6700K |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 8 | 8 | |
L2 cache | 1 MB | 1 MB | |
L2 cache per core | 0.25 MB/core | 0.25 MB/core | |
L3 cache | 8 MB | 8 MB | |
L3 cache per core | 2 MB/core | 2 MB/core | |
Manufacture process | 45 nm | 14 nm | |
Max CPUs | 1 | 1 | |
Operating temperature | Unknown - 67.9°C | Unknown - 64°C | |
overclocking | |||
Overclocked clock speed | 4.38 GHz | 4.61 GHz | |
Overclocked clock speed (Water) | 4.46 GHz | 4.77 GHz | |
Overclocked clock speed (Air) | 4.38 GHz | 4.61 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 | |||
DDR3-1066 | |||
DDR3-800 | |||
DDR3 | |||
Channels | Triple Channel | Dual Channel | |
Supports ECC | Yes | No | |
Maximum bandwidth | 25,599.99 MB/s | 25,600 MB/s | |
Maximum memory size | 24,576 MB | 65,536 MB |
Intel Xeon W3520 ![]() | Intel Core i7 6700K ![]() |
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