MSI GTX560 ... HAWK ??

[sargan]

I have separate Q on PCIe2 vs PCIe3 ...

If I do go ahead with a PCI GPU .... I had been looking at MSI GTX560Ti

Sticking with the 1GB video RAM variants ... there is the
560GTX Ti TwinFrozrII
and 560GTX Ti Hawk

The difference seems to be that Hawk is overclocked to 950 MHz
currently on offer at around £160

Is this a good card to get, or are non-HAWK variants preferred.
This is for a non-gaming PC ... GP business, Photoshop & Video Editing (will use GPU acceleration)

 

[fantastik250]

That is correct the hawk version is an overclocked card. You may want the overclock version. (If you are not planning to overclock the card yourself)

As for the PCI-E 2.0 vs 3.0

You can read this here:
http://www.tomshardware.com/forum/360499-33-dual

Hope that helps