Here's Game Informer's interview with Adam Beissinger (Stardock)
http://www.gameinformer.com/b/featu...k-gives-us-a-peak-at-stunning-new-engine.aspx
And here is the link again to Tekzilla's interview with Dan Baker of Oxide (someone posted it a couple of pages back).
https://revision3.com/tekzillabites/amd-mantle-demo
Sharing the link again, so y'all can use it to reference the time frames I'm talking about below.
At aroound 0:30, Dan says that AMD's claims r.e. Mantle performance have "been not only proven, but in fact conservative for what we've seen and tested".
At around 2:20, he talks about the Nitrous engine already being highly optimized for D3D, and that they were already quite proud of the performance they eeked out of D3D (Nitrous is highly D3D optimized), but that the 'when he first hit the switch, he was amazed with how fast Mantle was out of the box', even before any serious optimizations.'
At 1:40 (a little earlier in the interview) he talks about having to back off of some fidelity/workload with DirectX, not because the graphics card couldn't keep up, but because of the DX driver CPU cost.
So, at least on the Oxide end, it would appear that Dan is quite happy working with Mantle. The Tekzilla guys managed to get some pretty good ingame footage in their interview. What impresses me the most about the demo is that each of the 7000 ships has it's own AI, and it's own Physics, being run in the background.
This makes me think that "Massive" style battles a la Lord Of The Rings, are now very much within our reach on the PC.
http://en.wikipedia.org/wiki/MASSIVE_%28software%29
One other note, I found title #20 that AMD referred to in their slide. Oxide currently has at least THREE titles planned with Mantle support, not just two. Oxide disclosed that another unnamed title, along with the 'Mars' game from Mohawk Games, and the new Star Control game, were being developed using Nitrous. See the Game Informer link above for the discussion about this.