With Mantle being released, I've been playing BF4 at frame rates above 60 at ultra gfx settings on my R9 280X. Back in DirectX, I usually got like 50 FPS. But I kind of want to record my gameplay with Mantle. If I were to use Open Broadcaster to record BF4 while in windowed, I'd slump down to 50- FPS. It's not all that playable IMO, and much less is it enjoyable.
So, here is my question: Is there any software available that can record Mantle without a frame drop or without having to run the game in windowed?