The graphic card does contribute in a fast work flow and productivity. Under 'Preference' in photoshop, select 'Performance', there is an option for 'Enable 3D Acceleration'.
In photoshop, the size of ram comes first, with ideal range being from 1.6GB to 2.2GB, with a maximum of 4GB being the threshold. Followed by processor and graphic card.
You can try running this program to test the different speed of your components:
http://www.retouchartists.com/pages/speedtest.html???
Here are the results, from running speedtest on my Macpro with both 4GB and 8GB configuration:
1 Memory State, 0 Apps
4GB: 27.5 sec 8GB: 27.8 sec
1 Memory State, Apps CS3 PS, AI, ID, LR, FH MX, DW, FL, Nikon NX and Safari
4GB: 35.1 sec 8GB: 29.5 sec
30 Memory State, Apps CS3 PS, AI, ID, LR, FH MX, DW, FL, Nikon NX and Safari
4GB: 1:17.3 sec 8GB: 1:07 sec
30 Memory State, Apps CS3 PS, AI, ID, LR, FH MX, DW, FL, Nikon NX and Safari
Simultaneously with all these running
- NX opening 7 x Nikon D2X raw (unopen size 22mb)
- CS3 AI Converting 54.2mb CMYK file (artwork size 170x66cm) to 138.1mb CMYK 200dpi PSD
4GB: 5:36.6 sec 8GB: 1:33.7 sec
Try running the program with your on-board GPU first, then when you have upgrade your GPU, run it again to see the differences in time. Hope this helps.
