I had left it in "Very High" for 1/3 of the SP campaign and it was only seeing a few posted rates I thought I would see what I could get. I didn't think it would be that undemanding but apparently it is.
So the test:
Running a reliable FPS Counter (idealy FRAPS) can you achieve a minimum of 30 FPS in Extreme mode?
If your framerate goes below 30 FPS it counts as a fail.
You must test various demanding scenes where there is quite a bit going on, a typical busy multiplayer game or a "busy" scene from the campaign.
Your must benchmark over at least 3 minutes where you are not static (plenty of moving around).
Obviously the lower the spec that can still pass the test, the more interesting it is.
I found I got a 47 FPS average with a minimum FPS rate of 42 using the following spec, so there is clearly some headroom left for many others.
How low can you go?!?
My specs:
Intel Quad Core 9400
4 GB DDR 800Mhz
Geforce GTX 260 Saphire Calibre