Intel Celeron G540 vs AMD Opteron 840 |
Released July, 2011
Intel Celeron G540
- 2.5 GHz
- Dual core
Reasons to buy the Intel Celeron G540
 | Much newer manufacturing process 32 nm | | Significantly higher clock speed 2.5 GHz |
| | Newer Jul, 2011 | | Lower typical power consumption 52.81W |
VS
Released June, 2003
AMD Opteron 840
- 1.4 GHz
- Single core
Reasons to buy the AMD Opteron 840
| | Supports more CPUs in SMP configuration 8 | | Much more l2 cache per core 1 MB/core |
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Differences What are the advantages of each
| |||||||
| Much newer manufacturing process | 32 nm | vs | 130 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
|---|---|---|---|---|---|---|---|
| Significantly higher clock speed | 2.5 GHz | vs | 1.4 GHz | Around 80% higher clock speed | |||
| Newer | Jul, 2011 | vs | Jun, 2003 | Release date over 8 years later | |||
| Lower typical power consumption | 52.81W | vs | 66.71W | More than 20% lower typical power consumption | |||
| Significantly better overclocked clock speed (Air) | 2.6 GHz | vs | 1.69 GHz | Around 55% better overclocked clock speed (Air) | |||
| More cores | 2 | vs | 1 | Twice as many cores; run more applications at once | |||
| Significantly better overclocked clock speed (Water) | 2.5 GHz | vs | 1.4 GHz | Around 80% better overclocked clock speed (Water) | |||
| Lower annual home energy cost | 15.66 $/year | vs | 19.78 $/year | More than 20% lower annual home energy cost | |||
| Lower annual commercial energy cost | 56.94 $/year | vs | 71.92 $/year | More than 20% lower annual commercial energy cost | |||
| |||||||
| Supports more CPUs in SMP configuration | 8 | vs | 1 | 7 supports more CPUs in SMP configuration | |||
| Much more l2 cache per core | 1 MB/core | vs | 0.5 MB/core | 2x more l2 cache per core | |||
Report a correction
Features Key features of the Celeron G540 vs Opteron 840
clock speed
L2 cache
overclocked clock speed (air)
overclocked clock speed (water)
TDP
Specifications Full list of technical specs
summary | Celeron G540 | vs | Opteron 840 |
|---|---|---|---|
| Clock speed | 2.5 GHz | 1.4 GHz | |
| Cores | Dual core | Single core | |
| Socket type | |||
| LGA 1155 | |||
| 940 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE4 | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| SSE4.2 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
details | Celeron G540 | vs | Opteron 840 |
|---|---|---|---|
| Threads | 2 | 1 | |
| L2 cache | 1 MB | 1 MB | |
| L2 cache per core | 0.5 MB/core | 1 MB/core | |
| Manufacture process | 32 nm | 130 nm | |
| Max CPUs | 1 | 8 | |
| Clock multiplier | 25 | 7 | |
overclocking | |||
| Overclocked clock speed | 2.6 GHz | 1.69 GHz | |
| Overclocked clock speed (Water) | 2.5 GHz | 1.4 GHz | |
| Overclocked clock speed (Air) | 2.6 GHz | 1.69 GHz | |
power consumption | |||
| TDP | 65W | 82.1W | |
| Annual home energy cost | 15.66 $/year | 19.78 $/year | |
| Annual commercial energy cost | 56.94 $/year | 71.92 $/year | |
| Typical power consumption | 52.81W | 66.71W | |
 Intel Celeron G540  Report a correction |  AMD Opteron 840 Report a correction |
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