for your information, i own an old nvidia quadro fx1700.

And i can easily produce that 1080p animation in realtime (preview render) without any time to render (except the video codec operation).

http://www.youtube.com/watch?v=U5_HvmBklRI

 

i don't know what would be the result with a 1000$ video card, but i guess it would be near and not very much better than mine (<150$). Before my quadro, i had a oldest ati (HD2400) and i could not affor me this realtime render with it. So i guess the first price in nvidia quadro is enough (for me at least!) but i 'm curious like you of what will be the same render with better quadro...

i think i would need a bigger vcar like you told only in the case i needed more memory to store the texture in vram (with many characters, properties,landscape in my scene..).

As you can see, my animation use only one character with 4K textures.

By the way, i really would like someone build a sample scene (for poser 7 8 and pro 2010), upload it somewhere and build a topic for compare opengl render with different card.