Well, a 648 core clock on the GTX 260 Core216 would make it comparible now to the GTX 285 in the same way that the stock clocked GTX 260 Core216 compared to the GTX 280. Meaning that the typical 10% headroom these cards have, you can definitely compare to a GTX 285 if not beat it.
The GTX 275 is really a waste. The only benefit will be price vs. performance against the GTX 285 in SLI, as single card users would prefer running a single GTX 260 Core216 55nm overclocked than purchase a new card thats simply a super-superclocked version of what they have now.
I am very happy I went with GTX 260 Core216 SC for SLI, as SLI overclocking is not something I enjoy for every day gaming. This is where the GTX 275 will fit. The only issue is that this market is already very very bloated with GT200 mid-high range cards.
What they need to do is drop the shaders to 160 or so and drop the frame buffer from 448-bit/896mb to 256-bit/512mb and make a card bridging the gap (mainly the gap being the old g92 tech) between the GTS 250 and GTX 260.
The GTX 275 is really a waste. The only benefit will be price vs. performance against the GTX 285 in SLI, as single card users would prefer running a single GTX 260 Core216 55nm overclocked than purchase a new card thats simply a super-superclocked version of what they have now.
I am very happy I went with GTX 260 Core216 SC for SLI, as SLI overclocking is not something I enjoy for every day gaming. This is where the GTX 275 will fit. The only issue is that this market is already very very bloated with GT200 mid-high range cards.
What they need to do is drop the shaders to 160 or so and drop the frame buffer from 448-bit/896mb to 256-bit/512mb and make a card bridging the gap (mainly the gap being the old g92 tech) between the GTS 250 and GTX 260.