AMD Athlon II X2 255e vs 255 |
First seen on January, 2013
AMD Athlon II X2 255e
- 3.1 GHz
- Dual core
Reasons to buy the AMD Athlon II X2 255e
 | Much lower typical power consumption 36.56W | | Much lower annual home energy cost 10.84 $/year |
| | Much lower annual commercial energy cost 39.42 $/year |
VS
Released January, 2010
AMD Athlon II X2 255
- 3.1 GHz
- Dual core
Reasons to buy the 255
| | Much more l3 cache 1 MB | | Much more l3 cache per core 0.5 MB/core |
| | Has virtualization support Yes | | Higher Maximum operating temperature 74 °C |
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Differences What are the advantages of each
| |||||||
| Much lower typical power consumption | 36.56W | vs | 116.42W | 3.2x lower typical power consumption | |||
|---|---|---|---|---|---|---|---|
| Much lower annual home energy cost | 10.84 $/year | vs | 42.79 $/year | 3.9x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 39.42 $/year | vs | 113.7 $/year | 2.9x lower annual commercial energy cost | |||
| |||||||
| Much more l3 cache | 1 MB | vs | 0 MB | Compared to all cpus, 1 MB l3 cache is just OK | |||
| Much more l3 cache per core | 0.5 MB/core | vs | 0 MB/core | Compared to all cpus, 0.5 MB/core l3 cache per core is just OK | |||
| Has virtualization support | Yes | vs | No | Somewhat common; Boosts performance of virtual machines | |||
| Higher Maximum operating temperature | 74 °C | vs | 72 °C | Around 5% higher Maximum operating temperature | |||
Report a correction
Features Key features of the Athlon II X2 255e vs 255
clock speed
L2 cache
L3 cache
TDP
Specifications Full list of technical specs
summary | Athlon II X2 255e | vs | 255 |
|---|---|---|---|
| Clock speed | 3.1 GHz | 3.1 GHz | |
| Cores | Dual core | Dual core | |
| Is unlocked | No | No | |
features | |||
| Has a NX bit | Yes | Yes | |
| Has virtualization support | No | Yes | |
| Instruction set extensions | |||
| SSE4a | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| 3DNow! | |||
| Supports dynamic frequency scaling | Yes | Yes | |
details | Athlon II X2 255e | vs | 255 |
|---|---|---|---|
| Threads | 2 | 2 | |
| L2 cache | 2 MB | 2 MB | |
| L2 cache per core | 1 MB/core | 1 MB/core | |
| L3 cache | 0 MB | 1 MB | |
| L3 cache per core | 0 MB/core | 0.5 MB/core | |
| Manufacture process | 45 nm | 45 nm | |
| Max CPUs | 1 | 1 | |
| Operating temperature | Unknown - 72°C | Unknown - 74°C | |
power consumption | |||
| TDP | 45W | 65W | |
| Annual home energy cost | 10.84 $/year | 42.79 $/year | |
| Annual commercial energy cost | 39.42 $/year | 113.7 $/year | |
| Typical power consumption | 36.56W | 116.42W | |
bus | |||
| Clock speed | 2,000 MHz | 2,000 MHz | |
 AMD Athlon II X2 255e  Report a correction |  AMD Athlon II X2 255 Report a correction |
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