* gfxCardStatus tells you which card is currently in use by adjusting the menubar icon showing an ‘i’ icon for the Intel HD GPU, and an ‘d’ icon for the discrete card, whether it’s an NVIDIA GeForce or an ATI or AMD card. * Manually switch between the MacBook Pro GPU’s on demand through a menu bar application! The third party app allows GPU switching and GPU control, as well as the following: If you do not have dual GPU capabilities the tool will not work. The nice little app is works with the all modern MacBook Pro’s and later with an integrated GPU and discrete GPU. It’s really that simple to switch your GPU manually. Choose “Integrated” or “Discrete”, or “Automatic Switching” to let Mac OS determine what GPU to use on its own.Install gfxCardStatus and then click on the “i” menu when it appears in the menu bar on the Mac.Once you have gfxGraphicsCardStatus installed you will gain a menu item which you can use to toggle the GPU card to the integrated GPU or the discrete GPU. You can get gfxCardStatus here for free, it’s donationware so if you’re thrilled with the app throw the developer a couple bucks. How to Manually Switch Graphics Card on MacBook Pro

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