Hi i am looking into buying either a GeForce GTX 560 Ti or the GTX 650 2GB Ti but i am worried that my 450w psu wont be able to run the GTX 560 Ti because i saw that it has higher power consumption and i really don't want to buy a new psu at the moment my money is a bit tight.
If it's really a good one(full power delivery @good temps and from a quality brand), it can do for a 560 ti(cutting it close), the psu must have also two 6-pin pcie connectors.
If your psu doesn't meet the requirements above described, i recommend going with the 650ti.
I want an image of the current power supplies sticker
I am running the 650 ti(less power then the 560 ti) on a 300 watt power supply...mwaaaaaahaaahaaaahaaaaa!!!
The 560 ti seems to hang right in with the HD 5870 power wise, not quite a lightweight. My 5870 system tends to hang in the 250 watt(at the wall) range on most games, but can get up to 360 or so with OCCT's power supply test