If there weren't enough new graphics cards on the market already, Nvidia is making sure that every price point and market niche is considered. And I mean every one. This week alone, it's released three new boards, though you'll only find two available in systems built by desktop manufacturers.
The GeForce GTX 560 is the best performer of the three, though not to be confused with (though it will be) the GTX 560 Ti. The Ti-less $200 card replaces the GTX 460 and competes against the AMD Radeon HD 6870. It will appear in numerous overclocked versions from Nvidia's partners, so you'll pay a little more for that privilege.
HotHardware took a look at two overclocked 560s and, not surprisingly, found that they performed better than their 460 predecessors and, in most cases, the Radeon HD 6870, though not as well as the 560 Ti. Overall, it appears to be another solid card to confuse buyers in the $200 range.
You won't be as excited with the GT 545 and 530, which will only appear via OEM systems. According to Fudzilla, one flavor of the GT 545 will have 144 CUDA cores, a core clock speed of 720MHz and either 1.5GB or 3GB of GDDR3 memory. Alternatively, there's a version with GDDR5 memory that uses a 128-bit memory bus instead of a 192-bit one and an 870MHz core clock speed.
On the low end, the GT 530 features 96 cores running at 700MHz, 128-bit memory bus, and 1GB or 2GB of video memory. Needless to say, it will be a better option than integrated graphics, but demanding gamers will want to steer clear.