So far it looks quite impressive, but I will suspend any judgement on this until we get some actual benchmark results. Of course, the raw fill rate is probably the most important factor for me; given a choice between extra fps than better quality, I almost always take the latter.

However, is there much point in getting this if the rest of your hardware is not top-of-the-line as well, i.e. how dependent is it on other hardware? (I only have an Athlon 1400 TB, 512mb 266mhz ddr and a AGP4x motherboard)
Also, the card is apparently double sized and takes up two card slots on your computer case due to the unusual cooling mechanism.