What!? That's less than I bought my card!
If you're converting it into £'s that is...
I don't think it's any better than your though, if it's any consolidation. Benchmarks from guru3d put it just slightly above our lovable 8800gtx.
i think im still eligible for the steup program. you ever done that before mike? from what i understand you just send in your old card, pay the difference, and they mail you the new one? sounds easy enough, i just dont know if i could survive without a video card for a couple weeks
9800GTX has better overclocking potential than GTS 512, so no they are not same thing. 9800GTX overclocked to its max would still be better than GTS 512 overclocked to its Max
At stock speeds, 9800GTX performs almost as as 8800Ultra
Check this review
http://www.tomshardware.com/2008/04/01/nvidia_geforce_9800gtx_review/
Not to mention that 9800GTX supports 3-way SLI and HybridPower technology
Did you read the entire review? The 4% processing power came out to be more than that in actually applications.
Chances are, if you're willing to buy a high-end card, you want performance. If you want performance, you'll usually be willing to overclock. Then the 9800GTX becomes much better than the 8800.