you didnt state your full specs.
anyway, here are some 560ti benches:http://www.anandtech.com/bench/Product/547http://www.anandtech.com/bench/Product/330
you can always google for more benchmarks and reviews.
it is one of the 'best performance for money' cards out right now. i've heard that it overclocks well and has good sli scaling.
tom's 560ti review:http://www.tomshardware.com/reviews/nvidia-geforce-gtx-560-ti-gf114,2845.html
best gfx card for money article:http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-4.html