I've been looking for a decent forum discussion about the HD 6000 and HD 7000 generation of GPUs running Nvidia Physx and FXAA. I know that some people were able to run Physx in games w/ Hybrid Physx . But what about running it w/ a single Radeon card (e.g. 7950) in your system? Is that possible?
some games can be force activated settings by changing files, or the program letting you change the settings. for borderlands 2 situation, it can be changed by changing a non in game file. when not using an nvidia gpu, physx is pushed onto the cpu. the cpu cannot compute as fast as a nvidia gpu in that case, so a performance loss is a bit greater.