HD 7670m vs. GT 635m for SONY Vegas Editing and Rendering

I'm looking for a laptop to do video editing on. I won't be gaming, but I would like to use this laptop to edit HD video (not in-game, but like, from a camera) using SONY Vegas Movie Studio Platinum Suite 12. I know for sure that Intel's HD graphics are NOT supported, and aren't very powerful in the first place. Would either of them be able to edit and render videos in SONY Vegas Movie Studio at ALL?

Which mobile graphics unit is more powerful, which would be better for video editing? Both choices feature i5 CPUs.

I know this would also fit into the laptop category, but I've got a question about the video card itself, not the laptop as a whole.

SONY Vegas Movie Studio Platinum Suite 12 System Requirements:

NVIDIA

Requires a CUDA-enabled GPU and driver 270.xx or later.

GeForce GPUs: GeForce GTX 4xx Series or higher (or GeForce GT 2xx Series or higher with driver 285.62 or later).
Quadro GPUs: Quadro 600 or higher (or Quadro FX 1700 or higher with driver 285.62 or later).

NVIDIA recommends NVIDIA Quadro for professional applications and recommends use of the latest boards based on the Fermi architecture.

AMD/ATI

Requires an OpenCL-enabled GPU and Catalyst driver 11.7 or later with a Radeon HD 57xx or higher GPU. If using a FirePro GPU, FirePro unified driver 8.85 or later is required.

Thanks in advance!