You can download it from and start using it straight away. I’ve a couple of options missing and some different settings available, but it depends on what model of Mac you have and the Graphics Card present in your machine.Īll in all its quite a handy little app, and its Free. Lists dependent processes to see which apps are currently using the discrete GPU processor. The temperature difference between hot and cold side, thus cooling capacity will be lower, needing more TEC elements. 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. Generally, its additional files, such as preference files and. running at 2.5 instead of 6 amps results in an efficiency increase from COP 0.4 to 2.6. When installed, gfxCardStatus creates files in several locations. Which I don’t personally use, but then I tend to hot swap between on/off PSU far too often. To optimize energy efficiency, run TECs at lower current then their maximum rated value: f.e. Actually, this was my choice and Im pretty satisfied with how it works. One useful feature built-in is the ability to auto switch the graphics card in use based on the current power source. Since it will get boring to follow this procedure every time you want to use CUDA, you can download gfxCardStatus (which is free and open-source) and switch between graphics cards in a couple of clicks directly from your menu bar, as you can see in the following picture. It works quite well, sometimes you request a change and your machine won’t honour it straight away, normally this is down to another application doing something graphics heavy, so locking the control out. Most of the time it spends all its time just in my Task Bar sleeping showing which card I have enabled (i for the power saving low powered card, and d for the high-powered card). GfxCardStatus is a menu bar application for OS X that allows users of dual-GPU 15” and 17” MacBook Pros to view which GPU is in use at a glance, and switch between them on-demand. You have one for Power Saving and one for High Performance graphics.Ĭody Krieger wrote a handy little App that will let you change Graphic Cards without having to logout, quite handy if you want to just muck about for a bit and then open up Team Fortress 2, or do some Video work. Specific to Macs with Dual Graphics cards, normally the only way to change cards is to log out and log in again, after changing the preference under Power Settings. Heres a little handy app that works quite well.
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