is Visiontek X1300 512mb graphic card stable in Vista?

is Visiontek X1300 512mb graphic card stable in Vista? I'm going to return
Ati Radeon 9550 agp 8x and replace it with Visiontek x1300 512m graphic card
instead. Is the rating for this card 4.5?

 

It may get a slightly lower rating as you're running on AGP and not PCI-E,
which of course is a much faster interface. But I've had good results on
all my PCs that run an x series ATI card... right down to the x200
integrated at 128mb, and still supports Aero.

 

does visiontek X1300 512m graphic card uses the system memory? Any idea if
the X1050 uses system memory also? on Ati Radeon 9550 it uses shared system
memory:

Total Available Graphic Memory 767 MB,
Dedicated Video Memory 256mb
System Video Memory 0MB
Shared System Memory 511mb

 

What does the Visiontek website say?

 

It's NOT used memory, but it's the AGP Aperture Size. When a game needs more
memory, it will use the system RAM via AGP Aperture Size.