Maximum PC

If you enable/install Virtu and use the motherboard graphics port you limit the hardware acceleration that programs like Photoshop are now getting out of the GPU to what is onboard the CPU. This is immediately apparent in the "Performance" section of Photoshop preferences where acceleration options are grayed out if Photoshop has been started while the monitor is plugged into the motherboard graphics port. Restart Photoshop with the monitor plugged into your graphics card and the advanced GPU acceleration options are again available.Since Virtu, according to the authors of the article in the current issue does not actually save power, and clearly does degrade performance in everyday use -I don't know how they skipped a program like Photoshop in their tests-Virtu seems to actually be useless except to test that the graphics section of your CPU actually works without having to remove your GPU card.