Here you go, download and run the BitBit 2D benchmark.
http://www.karpfenteich.net/colorful/bitblt.html

couldn't resist, but hope it's accurate
HD 3870 results - 1680x1050, Vista x64

BitBlt:
avg: 2461.0 fps [2884.0 MB/sec]
max: 3975.1 fps [4658.3 MB/sec]
min: 97.6 fps [114.4 MB/sec]

ReverseBlt:
avg: 727.9 fps [853.0 MB/sec]
max: 4292.0 fps [5029.7 MB/sec]
min: 103.5 fps [121.3 MB/sec]


"Thomas Andersson" wrote in message
...
Luca Villa wrote:

Now I miss the final prove that I would not perceive this 2D speed
difference when I'm working with tens of standard Windows
applications/ windows. For example every time I unlock Windows I
currently have to wait 10-15 seconds for all the windows and icons to
be restored/ painted on the screen. My system has a Geforce 7300
card. I wonder if the graphic card can positively influence this
speed.

Then skip the expensive gfx card (That won't help here) and get more ram
and a faster CPU (That WILL help).