As you can see, the 560SC is a super clocked 560. It is still below the 560TI in performance.
Maybe not the answer you are looking for. If you look here:http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-7.html
You can see the 560TI family is one notch below the Radeon 7850 family, which actually costs less. The 7850 starts at $165, while the 560TI starts at $180.http://www.tomshardware.com/reviews/gaming-graphics-card-review,3107-3.html
As you can see, the 7850 1GB is a best buy for the money.
The 560 is an older technology chip that draws a lot of power and runs hot and noisy. If you want to stay with Nvidia, go with a 660, which starts at $210.