rapsberry pi

[som99]

If you plan to overclock and use the GPIO for anything then use the 2A one tho in most cases the 1,2A one will also be enough. Also if you plan on adding usb devices you want to use the bigger one but using external drives will most likely need a powered USB hub.

If you only plan to use it as it is with only a flashdrive and such the 0,7A one will do just fine (even moderate overclocking will survive on 0,7A)

If you do not use the 2A one for something else then use it, if you use a weaker one and you drain more then it can give the pi will shut off.

Happy new year to you also

[som99]

I dont know how to use it till i see the performance, dont know what OS is lighter or how emulators run in it (amstrad, c64, spectrum, mame). Need some cooler if is overcloked?

Thanks.

Then go for the 1A one and your safe. Regarding overclocking,  if you want to stay on the safe side without risking the hardware you won't need a passive or active cooling solution, if you want to push it then you will need extra cooling, I myself have made a 2x2cm aluminum heatsink and mounted a 2x2cm fan on it taking power from the GPIO since I push it hard tho I overvolt the cpu quite a bit, I've found that if I use it caseless I won't need the fan but long runs in the case and the fan was needed. Some say that you won't need an active fan at 1GHz but I find it way to hot to feel safe using it for long periods in the case.

Normal overclocking = no cooling but you can always stick a small heatsink on there if you want to be extra safe.