Anyone have knowledge of this card ?

Palit is a European company that recently starting selling in different places...so they are a respectable company.

The 1GB version might have some gains over the regular card, yet there won't be the huge gain that one might except.

The memory size is increased by 2x, but it still has a 256 bit. If that was doubled also, then the card would show some good gains.

So it might get an extra framerate or two, but at the price gains over the 512, you might want to consider the 512mb also.

This kind of thing has come up before, Its basically a marketing gymic. It wont make your games run any faster than the 512 card does, todays games/apps dont need that much ram.
However having said that if the price isnt much differance than a standard card then its worth it.
Can you link us to the site and we can see what kind of price they are asking and recomend you a better/differant alternative.
Mactronix

yeah but the bus is still 256-bit... its just a marketing gimmick don't get it

Actually I don't think the extra 512MB will make much difference at all, even at really high resolutions. There may be a couple of exceptions but for the most part 1GB is overkill. Get a 512MB GTS instead.

I think if you buy it you're will not get the performance that you just paid.
A 512mb version will go good.
Get an OC version if you got more cash in hand.

Its actually cheaper than the 512 version, I am concerned that the clocks havent been included in the specs.
This card from newegg is the same price and like your palit card also has the advantage of a non standard cooler. Its an overclocked version so would actually be faster than the palit. You would need 2 slots though.
Mactronix

Good deal, get it.