Performance dropping in BF4 due to mantle issues.
Performance dropping in BF4 due to mantle issues.
Based on what I've observed, most i5 models can't handle AMD's DX overhead in BF4, and even i7s face challenges. A high-end i7 like the 5820k might offer some relief, but the performance gap remains due to differences between AMD's Mantle and DX. @OP Mantle is effective in CPU-heavy scenarios. If your GPU reaches its limit before the CPU, improvements won't be noticeable. Monitoring GPU usage can provide useful insights. Mantle doesn't improve overall performance. Please try again and keep track of your GPU activity.
I analyze AMD DirectX overhead from PCLab.PL with a bowl of salt, noting the figures seem inflated. I tested BF4 on a 290x Tri-X with an Xeon E3-1230V2, using both DirectX and Mantle; Mantle only added about 5 FPS at most in my setup, while the 290x outperforms the 780@1100MHz chip I owned previously.
Pclab is right. I'm getting the same results on my PC (4670k+290X). Bf4 DX is unplayable for me, average fps around 60. It never drops below 60 with Mantle. I did a benchmark in Star Swarm and I've seen the same issue as in BF4. Here's how GPU usage looks like:
Omega drivers perform well with Mantle. AMD confirms Mantle remains in beta, targeting 3gb and 4gb cards. I frequently play BF4 and find it functions excellently. I'm excited about upcoming AMD releases next year. Both AMD and Nvidia are likely preparing GPUs for 4K gaming.