1.
If there is so much Tessellation in play in the DX11 patch, it's surprising as to how little performance difference there is between an HD6950 and HD6870 at 1920x1080. In contrast, the performance difference between a GTX570 and GTX560 Ti is ~ 20%.
Either AMD drivers are completely unoptimized, not allowing the 6950 to lead the 6870, or the 2 Tessellation engines in the 6950 are no better than 1 in the 6870 (ie, some other bottleneck in AMD's architecture).
With Crysis 2, Lost Planet 2, HAWX 2, Civilization 5, Unigine Heaven, it's now all too obvious that in its current form (VLIW-4) AMD's architecture is completely hopeless in Tessellation, even after the "driver" optimization, which allows AMD cards to reduce the Tessellation scale.
Based on the 42% lead that the GTX580 has over the 6970 at 1080P, HD7000 is going to need a miracle in Tessellation architecture re-work (GCN?) if it hopes to be able to compete with Kepler in next generation DX11 games with this setting ON.
Either AMD drivers are completely unoptimized, not allowing the 6950 to lead the 6870, or the 2 Tessellation engines in the 6950 are no better than 1 in the 6870 (ie, some other bottleneck in AMD's architecture).
With Crysis 2, Lost Planet 2, HAWX 2, Civilization 5, Unigine Heaven, it's now all too obvious that in its current form (VLIW-4) AMD's architecture is completely hopeless in Tessellation, even after the "driver" optimization, which allows AMD cards to reduce the Tessellation scale.
Based on the 42% lead that the GTX580 has over the 6970 at 1080P, HD7000 is going to need a miracle in Tessellation architecture re-work (GCN?) if it hopes to be able to compete with Kepler in next generation DX11 games with this setting ON.



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