Intel Xeon W3520 vs AMD Opteron 854 |
Released March, 2009
Intel Xeon W3520
- 2.66 GHz
- Quad core
Reasons to buy the Intel Xeon W3520
 | More cores 4 | | Much better overclocked clock speed (Air) 4.38 GHz |
| | Much newer manufacturing process 45 nm | | More threads 8 |
VS
Released August, 2005
AMD Opteron 854
- 2.8 GHz
- Single core
Reasons to buy the AMD Opteron 854
| | Higher clock speed 2.8 GHz | | Much more l2 cache per core 1 MB/core |
| | Supports more CPUs in SMP configuration 8 | | Significantly lower typical power consumption 75.24W |
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Differences What are the advantages of each
| |||||||
| More cores | 4 | vs | 1 | 3 more cores; run more applications at once | |||
|---|---|---|---|---|---|---|---|
| Much better overclocked clock speed (Air) | 4.38 GHz | vs | 2.96 GHz | Around 50% better overclocked clock speed (Air) | |||
| Much newer manufacturing process | 45 nm | vs | 90 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| More threads | 8 | vs | 1 | 7 more threads | |||
| Much better overclocked clock speed (Water) | 4.46 GHz | vs | 2.8 GHz | Around 60% better overclocked clock speed (Water) | |||
| Newer | Mar, 2009 | vs | Aug, 2005 | Release date over 3 years later | |||
| |||||||
| Higher clock speed | 2.8 GHz | vs | 2.66 GHz | More than 5% higher clock speed | |||
| Much more l2 cache per core | 1 MB/core | vs | 0.25 MB/core | 4x more l2 cache per core | |||
| Supports more CPUs in SMP configuration | 8 | vs | 1 | 7 supports more CPUs in SMP configuration | |||
| Significantly lower typical power consumption | 75.24W | vs | 105.63W | Around 30% lower typical power consumption | |||
| Significantly lower annual commercial energy cost | 81.12 $/year | vs | 113.88 $/year | Around 30% lower annual commercial energy cost | |||
| Significantly lower annual home energy cost | 22.31 $/year | vs | 31.32 $/year | Around 30% lower annual home energy cost | |||
Report a correction
Features Key features of the Xeon W3520 vs Opteron 854
clock speed
L2 cache
overclocked clock speed (air)
overclocked clock speed (water)
TDP
Specifications Full list of technical specs
summary | Xeon W3520 | vs | Opteron 854 |
|---|---|---|---|
| Clock speed | 2.66 GHz | 2.8 GHz | |
| Cores | Quad core | Single core | |
| Socket type | |||
| LGA 1366 | |||
| 940 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
details | Xeon W3520 | vs | Opteron 854 |
|---|---|---|---|
| Threads | 8 | 1 | |
| L2 cache | 1 MB | 1 MB | |
| L2 cache per core | 0.25 MB/core | 1 MB/core | |
| Manufacture process | 45 nm | 90 nm | |
| Max CPUs | 1 | 8 | |
| Clock multiplier | 20 | 14 | |
| Voltage range | 0.8 - 1.38V | 1.3 - UnknownV | |
| Operating temperature | Unknown - 67.9°C | 0 - 67°C | |
overclocking | |||
| Overclocked clock speed | 4.38 GHz | 2.96 GHz | |
| Overclocked clock speed (Water) | 4.46 GHz | 2.8 GHz | |
| Overclocked clock speed (Air) | 4.38 GHz | 2.96 GHz | |
power consumption | |||
| TDP | 130W | 92.6W | |
| Annual home energy cost | 31.32 $/year | 22.31 $/year | |
| Annual commercial energy cost | 113.88 $/year | 81.12 $/year | |
| Typical power consumption | 105.63W | 75.24W | |
 Intel Xeon W3520  Report a correction |  AMD Opteron 854 Report a correction |
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