Here's a quote from a laptop forum:
" I've had the 7426gx for a little over a week now.
The video card is indeed identical to a 9600...and it's overclocking ability is nothing short of amazing. It's default core clock is 300Mhz...using ATITool I learned that it could run at 418MHz with no errors indefinitely. The ram can only go to 216 from 202 though. To play it safe, I run mine at 400/215 when benchmarking. In games, I don't bother to overclock. I can play Doom 3 at 1024x768 with all effects on (except AA) and it runs okay. Sometimes it dips down to 15fps in areas with a lot of lights and activities, but those are rare. In corridors it gets over 50fps and it averages over 30. Half Life 2 runs phenomenally at 1280x800 with no AA but everything else set to high and 8x Aniso and it averages over 40fps. In big open active areas, there are dips, but it's the same with my 9800 Pro on my desktop. What more can you ask for? The screen is so small (compared to a 19" LCD) I don't really miss anitaliasing at all...and that's about the only thing a GeForce go 6800 will let you do that this 9600 can't.
As for benchmarks, with the stock clock it gets 20fps in Aquamark 3 (1024,768, no AA, 4x Aniso, Highest detail). Running at 400/215, it gets 25fps, which is higher than some reviews of Mobility Radeon X600s I've seen running on Pentium Ms.
I don't actually play these games very much on it...that's what the desktop is for...but it's fun to be able to do so every now and then.
The 3700 processor is off the hook...fast as hell. Overall, I love this laptop."