Installed new GTX 750 Ti on system with an APU, do I need turn off integrated graphics?

Edric Valentine

Honorable
Jul 9, 2016
10
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10,510
I installed a GTX 750 Ti on my PC with an A8-7600, do I have to turn off its integrated graphics? I have a feeling that some games are running on the integrated graphics rather than the discrete GPU because Sims 3 performance is still quite the same but I can see a difference on other games like BioShock Infinite and Rise of the Tomb Raider. Thanks!