When NVIDIA launched the GeForce GTX 550 Ti, it was significantly less powerful than the GeForce GTX 560 Ti. So it was obvious that NVIDIA would eventually slot a new graphics card in between the GeForce GTX 560 Ti and the GeForce GTX 550 Ti. That day has arrived, and that graphics card is unsurprisingly named the NVIDIA GeForce GTX 560."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips