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Test with high end GPU for low end GPU- is it possible?

Hi all,

I am planing on buying GTX 1080 soon.
I wonder if, while running an UE4 project, it is possible to “simulate” the performance of a lower end GPU like GTX980, 780, 680, etc.

My goal is to see how my project will run on a client’s machine with a less powerful GPU without having to buy such GPU in addition to my 1080.

I do realize there are graphics settings for that but I am far away from being able to implement such thing at my current level of development.

Would lowering the 1080 clock speeds, or using some specialized software help in that regard?

Or is that all just not going to work?

Thanks a lot.

There’s no real substitute for using the real hardware.

Thanks for the reply, ambershee.