Nvidia is steadily filling in the gaps in its product line. Late last year, Nvidia had the GTX 460 768MB and GTX 460 1GB cards. The 1GB GTX 460 was effectively replaced at the $250-$270 price point by the GTX 560 Ti. Now the company is delivering the GTX 560, which will be priced from $199 - $220.
Palit's GTX 560 offers 2GB of frame buffer, if that's what you're into.
Unlike the GTX 460 768MB cards, which only offered a 192-bit memory bus, the GTX 560 supports a 256-bit wide bus. The Palit card is slightly unusual in supporting a 2GB frame buffer, but its specs are otherwise pretty stock. It’s not factory overclocked, but given the tweaking and streamlining that are part of the improvements of the GF114 (560) over the GF104 (460), we do expect some performance benefits. The GTX 560 does have eight fewer shader units than the GTX 560 Ti.
Don't look now, but there's a slim chance you could order a GeForce GTX 560 (non-Ti) a day ahead of schedule. Here's the deal: Nvidia isn't planning to launch the GTX 560 until tomorrow, but someone over at Newegg is apparently getting a little antsy and listed a couple of cards in-stock and ready to ship today. An honest mistake?
Probably so. News and rumor site Fudzilla says Newegg listed GTX 560 cards from both Palit and MSI, each one sporting a custom cooler. By the time we jumped over to Newegg, however, the cards were either snatched up or pulled from the site. We'd guess it was the latter, but if it's the former, there's a chance more stock will come in throughout the day.
In any event, the GTX 560 will sell tomorrow, and if today's (inadvertent?) listings are any indication, expect to pay between $200 (what the Palit was listed at) to $225 (MSI). That would fit with Nvidia's claim that the GTX 560 slides in between the GTX 460 and GTX 560 Ti cards.