Gaming and £D Design GPU

[Arenesus]

I'm deciding on a new GPU for a build whihc is mainly gaming and some £D mechanical designing (CAD and Solidwords) aswell as encoding to the design to a Rapid Prototyper (3D Printer) and CNC machine.

I was originally looking at this card:
Gigabyte HD 6950 ATI - AMD Radeon Graphics Card - 2GB
http://www.scan.co.uk/products/2gb-gigabyte-hd-6950-pci-e-21-(x16)-5000mhz-gddr5-gpu-800mhz-1408cores-2x-mdp-2x-dvi-hdmi

But was reccomended to try another card seeing as the ATI is apparently useless at the design aspect so I then chose this one:
MSI GeForce GTX 560 Ti TWIN FROZR II 1GB NVIDIA Graphics Card
http://www.scan.co.uk/products/1gb-msi-gtx-560-ti-twin-frozr-ii-oc-40nm-4200mhz-gddr5-gpu-880mhz-shader-1760mhz-384-cores

I am looking to spend around £220 on a card but I can go a bit further if need be, any suggestions will be appreciated.

[Bobsama]

Solidworks doesn't appear to support either for HW acceleration.

[RacingTurtle]

Reckon you've gotta go Nvidia for GPU acceleration on design programs.

What size screen do you have? That GTX560 is a great card but if you're gaming at higher resolutions then maybe a GTX570?

http://www.scan.co.uk/products/1280mb-msi-gtx-570-oc-40nm-4200mhz-gddr5-gpu-786mhz-shader-1572mhz-480-cores-dl-dvi-mini-hdmi

[Arenesus]

This card has caught my eye and I think I can push for the price

http://www.scan.co.uk/products/1280mb-gigabyte-gtx-570-40nm-3800mhz-gddr5-gpu-732mhz-shader-1464mhz-480-cores-dl-dvi-mhdmi

My screen is a 23" Samsung Syncmaster

[STEvil]

Reckon you've gotta go Nvidia for GPU acceleration on design programs.

What size screen do you have? That GTX560 is a great card but if you're gaming at higher resolutions then maybe a GTX570?

http://www.scan.co.uk/products/1280mb-msi-gtx-570-oc-40nm-4200mhz-gddr5-gpu-786mhz-shader-1572mhz-480-cores-dl-dvi-mini-hdmi

Depends on the program, gotta do research on what each one supports then see what cards bench the highest on it.