![]() Do laptops actually totally power off one of the graphics cards until it's needed, or the only difference comes from desktop GPUs just using more power in general compared to laptop ones? I assumed switchable graphics in laptops keep both GPUs working at all times, but the one that doesn't get any workload keeps running at low frequencies, pretty much like desktop GPUs/iGPUs. I'm not sure I fully understand the power usage difference tho. Yep, that's exactly what they've been doing. Doing this only has down sides, more latency (Nothing noticable though) and more power usage. They are most likely letting the Nvidia card do the calculations, copy the output in to memory which is then read and displayed by the Intel HD. The Intel HD and Nvidia GPU don't have a direct connection to eachother like in laptops. It's looks similar but is not the same thing, and the GPU isn't switchable in these cases. Tho it required modified drivers or something. ![]() ![]() Originally posted by Snow:I've seen people having that feature on desktop as well.
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