mudgel
In Win 7 and Vista, Aero is important for allowing the OS graphics engine to offload to the GpU. If you turn it off then the CPU has to handle all graphics throughput adding a burden that's not necessary.
In SONAR X1 I think it was Seth who said that a 1 Gig graphics card was recommended even though it is only a 2D application. From my personal experience lve found that leaving Aero on, my DAW performs better than with it turned off.
If you don't use Aero then their are no advanced graphics that are "straining" the CPU.
If you leave Aero turned off
Your GPU still acts like a GPU... and in fact it doesn't have to "strain" to provide all the silly Aero eye candy.
That's why Microsoft only describes Aero as a visual enhancement and that is why no one can ever produce any official Microsoft documentation that explains how Aero is required for, or enhances, performance.
I've been waiting for years, for someone who explains that Aero is a performance enhancement, to produce a link to a Microsoft document that substantiates the claim.
The system isn't *strained* by the graphic requirements until you turn on the multiple layers of transparency. That's why Microsoft partnered with Nvidia to find a way to provide the entertainment value of fancy graphics while making sure a GPU was tweaked for it.
There are lots of features on GPUs that 99% of the apps on a Microsoft system don't use.
It's a case of a justifying a justification... it's a zero sum system... it's a luke warm attempt to copy some features from the Mac OS gui.
You can safely leave Aero off and it will not hurt your system.
best regards,
mike