AMD Cayman info (or rumor)

[Mechanical Man]

IF it is 4D, 1920 shaders, and 860 clock I'm going to predict about 50% faster then a 5870 in most games. In games with heavy tessellation it should be more, but it isn't clear how much.

I guarantee you, it is 4D. Very reliable source.

I posed this question in another forum. What about AMD's sweet spot strategy. They always like to keep margins high with respect production costs. If this is true TDP would be more like 225W and smaller die than what is rumored. If that's the case they are just happy to sit within 10% of GTX 580 or just below it.

HD6950 has PCI-e 6+6pin connectors, so <=225W, HD6970 has 6+8pin connectors so <=300W.

HD6870 has 6+6pin and is <150 in real powerdraw. I would guess from that that HD6970 is ~210-230W. Think about what 50% more power gives you in performance compared to Barts..

[kadozer]

I guarantee you, it is 4D. Very reliable source.



HD6950 has PCI-e 6+6pin connectors, so <=225W, HD6970 has 6+8pin connectors so <=300W.

HD6870 has 6+6pin and is <150 in real powerdraw. I would guess from that that HD6970 is ~210-230W. Think about what 50% more power gives you in performance compared to Barts..

Another good way to look at it. Been awhile since AMD took a chance. Hoping they go all out and bring a real enthusiast powerhouse since this was originally meant for 32nm.

[Lanek]

I invit you to read the report of Beyond3D about Fermi architecture ( vs Cypress ), and see where the strong and the weakness are on Cypress ... and just imagine if they have work a little bit on thoses weakness ( parrallel/geometry / data flow loss) how much the gain can be against Fermi... this will not come only by the 4VLIW ( who increase double floating point perf by around 20-25% and single precision by 40%( 1 cycle will be executed 20% faster just by this change for double float precision, and 40% for single at minimum)....