For completeness, from Infraworks hardware requirements:
Any DirectX® 10.1 capable graphics card with 2 GB (or more) graphics memory, supporting 8x Antialiasing (8x AA), such as NVIDIA Quadro® 5000 or 6000 for desktops and NVIDIA Quadro 2000M or GeForce® GT 650M for laptops; (Any DirectX 10.1 capable graphics card with 1 GB graphics memory supporting 2x antialiasing (2x AA) minimum)
I find it quite interesting that the desktop requirements are for Quadro 5000 or 6000, vs. 2000M-series for the laptop. There's a huge difference between them in terms of capability and price, enough to question if there was a typo. If a laptop can run a 2000M, then a 2000 should be suitable for light work on a desktop as well. I'll also note the mid- to high-end GTX series qualify, and can run circles around more expensive Quadro cards.
From memory, the above-mentioned Lecia Cyclone still uses OpenGL in viewer mode so that usually means it performs best on a Quadro (full OpenGL support is one of their main claims to fame, the other being higher precision calculations).
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