|it should be but you didn't mention your POWER SUPPLY
if you have 450 watt PSU it should do fine and give you no problem at all however if you have lower i suggest you get a new PSU.
also. make sure your PSU has those PCI-E connector thing for the graphics card since the GTX 560 ti needs a separate power....
PS: if you want a GTX 560 ti i suggest you get a GTX 560 ti Twin Frozr two from MSI
it has great feature on it......it also runs much cooler than reference GTX 560ti up to 20C
GTX 560 ti user