Radeon HD 7xxx series?

ambam

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I've got some questions about the upcoming ATI Radeon HD 7xxx series of graphics cards.

*Are these cards a completely new architecture or just a 28nm die shrink of the HD 69xx?

*Will they offer almost twice the performance like the HD 5000 > HD 4000 did?

*How much video memory will these cards have? More than 2GB?

*I heard that they are supposed to use GDDR5+ memory. What is GDDR5+?

*These cards are going to go along with the next-gen processors/chipsets motherboards from AMD and Intel, and will use PCIe 3.0 x16. Will they be reverse-compatible with PCIe 2.0 x16?

*Will they use a new version of DirectX?

*Are these cards due for release in 2011 or 2012?

*I've heard rumors about 2160p monitors. Will these cards support resolutions beyond 2560x1600?
 

turboflame

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Based on rumors:

*They are supposedly based on the same VLIW 4 architecture as the HD 6900 series.

*Ideally yes considering how many more transistors they can pack into 28nm over 40nm.

*Probably no more than 2GB, 2GB is overkill as it is in most cases.

*No idea

*PCI express is always backwards compatible, a PCI-E 3.0 card should work in a PCI-E 2.0 slot

*Probably not, I don't think the specs for DX12 have even been finalized yet.

*Supposedly we'll see a card or two by the end of the year.

*By the time that becomes standard, you'd want a new video card anyway.
 

ambam

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Do you have anything to support that claim?