I can understand your point; but I had a while back tried installing on Windows 7 with the same issue; and Windows 8 actually seems to have huge under the hood improvements which seem to make performance in most areas better than Windows 7. (Despite some obvious buffs in the area of user experience; 8 Seems to be a huge improvement over 7 strictly from a performance standpoint.)
I am open to further testing or reporting of any data needed to resolve this.
I don't have my laptop handy, but check the Nvidia control panel and see if there is an option to select the Nvidia card for your machine. I have a AlienWare machine and I can change between the Intel onboard and the Nvidia card.
I get completely different Windows performance results switching between the two graphics cards on my machine.
My machine is a Server style board; no built-in graphics. See specs:
2.83 Core-2 Quad (Q9500)
16 GB Gskill 800 mhz DDR2 Memory
SATA-1 SSD System Drive
1 GB Graphics (Nvidia 9800GT)
(I do realize my Graphics card is not a Quadro; which is preffered, but for 98.5% of it's use it woks with Autodesk software including Alias.)
Has there been a fix posted for this? I haven't found one just yet? We have one user out of the group that seems to be having this issue. I believe it occured when we installed Revit 2014 on his system, which inturn installed .net 4.5
For Inventor 2013, Service Pack 2 Update 3 was supposed to have solved most of our .NET4.5 compatibility problems. The latest update is posted here:
You'll need to install SP2 first.
Let me know if that is not working for you.