More like low to medium depending on the resolution. Highly doubt you'll get playable frame rates on high with a 635m. I barely get some settings on high with my 650m.http://www.notebookcheck.net/NVIDIA-GeForce-GT-635M.669...
Benchmarks there show low settings at 45.8 FPS. Medium drops it into the 20's.
Having said that, high settings in BF3 are a lot to expect from a laptop without spending $1200. That HP is a very nice unit and the best you have mentioned so far.
Also, would you link back to the original thread so this doesn't look funny to the mods.