I was bored, so I decided to see just how low I could go with my laptop. I downclocked its T7300 to 800MHz, and fired up Orthos and OCCT GPU in the background as well. Ended up scoring 90. As in, ninety 3d marks. I've never seen a double digit score before. This is with an X3100 (intel 965) IGP, by the way.
Average framerates for the tests were around 0.2-0.3fps. (sm2 score = 33, sm2 = 29, cpu = 499)
edit: whoops, completely forgot to boost Orthos's priority. I'm rerunning 3dmark now with Orthos at max priority. This could take a while... it took about 15 minutes to bring up the loading screen after I clicked the button to start the test.