> does OS4 support more than two channel sound anyway?
OS4 uses AHI so most likely not. Still this doesn't warrant selling a VT1723-based card as a VT1724-based one. But maybe it's really a VT1724 card and it's just the picture that has been poorly chosen.
> The HD5450 doesn't sound like much of an upgrade.
Performance-wise it should be a downgrade even.
> Maybe its just getting harder to find the 4650s.
Yes, and Warp3D has been announced for HD5xxx but not for HD4xxx.
