System Specs:Dell XPS Gen III Pentium 3.4 GB ATI800XT (came with system)REPLACED by ATI1900XGT 256 meg.Just to let others know that I experienced no true FPS increase in either FS9 or FSX.I'll find out if the rendering with the 1900 part is better than the 800 part (more detail and effects).I had a good buy, and decided to upgrade the vid card. I guess no matter what, Flight sim 9 and X is truly CPU limited. It seems that I had plenty of headroom not even utilized with the ATI X800XT part!!!Oh well...I'll keep the ATI1900XGT part in place and have the X800XT as a spare for the rainy day, lol.The only thing I can do for now I guess is to see what fastest CPU part can be placed in my Gen III rig. If anybody knows by having already done that...please advise. I'll give a quick call to Dell and see what they suggest.Cheers!Mitch R.

I went from a 128MB ATI 9800 Pro to a 512MB GeForce 7600 GS OC and experienced a profound difference. Also I had noticed before that with my 2GB of DDR system RAM I was having any easier time with the FSX demo than others with similar cards and 1GB were.I don't have my copy of FSX Deluxe yet... maybe in today's mail (I hope, I hope) but with the demo the more the memory the more fps. I have the demo set to max everything at the moment and is running pretty good... seen a couple of hesitations but overall very smooth. Earlier on Sunday (after installing the new card) I only had aircraft detail and water maxed and it was zipping along.512 meg seems to be the threshold... and 2 gig of sys RAM helps too. :)BTW - I have a 2.8 ghz P4 with 2 250GB HDs.

Hi,I imagine that you would have had significant gains!What I see with my setup, is that going from an ATI xxx series to an ATI xxxx series really does not give performance gains. Any current CPU out there right now is below the performance threshold of my two cards.I didn't know that until I put the X1900XGT 256 meg in saw that it gave no better performance than my X800XT 256 meg in FPS's.My FSX frame rates stayed around the 10 mark on the ground with both. I do concede that mostly likely the X1900XGT part is sending a finished screen refresh faster than its slower cousin, but if the CPU can not address it any faster than what the X800XT was vamping, then what true good is it to upgrade into the ATI XXXX series from a XXX series card.I gather that a lot of other person's systems have high-performance vid cards that are being severely 'limited' by the bottle-neck of the Pent 4's and Dual Core whatever GB....There are a lot out there that have paid to see the max that their vid card will render, but alas...like myself, will never see it. Not with the current crop of CPU's and their respective speeds.It all becomes redundant, as the parts are all DX9 and new CPU's and DX10 vid cards are on the horizon. Hopefully, the CPU bottle-neck will be finally addressed with those issues.... Here's hoping!Cheers!Mitch R.