Intel Atom is a series of Ultra Low Voltage processors made for ultraportables called "netbooks" and ultra small form factor desktops called "nettops". Because of their low clock speed, Intel Atom CPUs are highly energy efficient. The Atom CPU uses its own micro architecture, which gives certain Atom CPUs Hyper-Threading.
| Model |
Core |
Clock Speed |
Thermal Design Power |
TDP to Clock Speed Ratio (W/GHz) |
| Atom N270 |
Diamondville (45 nm) |
1.6 GHz |
2.5 W |
1.56 |
| Atom N280 |
Diamondville (45 nm) |
1.66 GHz |
2.5 W |
1.51 |
| Atom Z500 |
Silverthorne (45 nm) |
800 MHz |
0.65 W |
0.69 |
| Atom Z510 |
Silverthorne (45 nm) |
1.1 GHz |
2 W |
1.82 |
| Atom Z510P |
Silverthorne (45 nm) |
1.1 GHz |
2.2 W |
2 |
| Atom Z510PT |
Silverthorne (45 nm) |
1.1 GHz |
2.2 W |
2 |
| Atom Z515 |
Silverthorne (45 nm) |
1.2 GHz (burst speed) |
1.4 W |
1.67 |
| Atom Z520 |
Silverthorne (45 nm) |
1.33 GHz |
2 W |
1.5 |
| Atom Z520PT |
Silverthorne (45 nm) |
1.33 GHz |
2.2 W |
1.65 |
| Atom Z530 |
Silverthorne (45 nm) |
1.6 GHz |
2 W |
1.25 |
| Atom Z530P |
Silverthorne (45 nm) |
1.6 GHz |
2.2 W |
1.38 |
| Atom Z540 |
Silverthorne (45 nm) |
1.86 GHz |
2.4 W |
1.29 |
| Atom Z550 |
Silverthorne (45 nm) |
2 GHz |
2.4 W |
1.2 |