Will the dual gpu card deliver the same performance as two cards in SLI mode? Is this the same or there is some difference?
In theory yes. In practice no.
To keep the card within some vague attempt at a reasonable power draw, either the core/memory frequency is likely to be lowered or very little overclocking headroom will be available.
After the release of the new Radeion, a single 460 doesn't seem to be a good idea.
That depends on (your) budget, pricing in your region and what you expect out of the card regarding game IQ and resolution. The GTX 460 hasn't suddenly become a bad card, and nor has the HD 6870/6850 re-invented the wheel.
But I hope that the Radeon is just as good in Crossfire, because the 460 was brilliant.
Crossfire (and SLI) scaling is in large part down to driver profiles. The latest Catalyst 10.10 drivers have improved Crossfire scaling significantly in a number of games
I hope to see here a review of the new Radeon in CF mode
I'm sure it's not too far away.
best option......now that i hear the radeon 5970 is going to be 10% faster than the gtx 480
It already is....and them some.
Depending on the price this product may become very interesting (in case it gets on the market). SLI out of the box. I am wondering whether this product would work on AMD chipsets (boards).
All any AMD and Intel board needs for this card (or any other PCI Express based card) is a functioning PCIe x16 slot.
Wow! If it's priced properly, it could seriously hamper GTX 480 sales methinks.
Not majorly. The GTX 480 is probably nearing EOL very rapidly, if reports floating around regarding the new Fermi silicon revision are true ( 512 shader/ lowered double precision (compute) emphasis, 128 TMU, 750-800MHz core/ 4000-4600MHz effective memory).
I don't think nvidia will be overly sad to see the 480 retired.