GT 240 have been bashed by review just because it's overpriced for the performance. If you can find it for around 50-60$ then it's a decent card.
For the next gen, I wouldn't say 2 or 3 time faster. GF100 and derivative are not 2 or 3 time faster than previous gen card. The card that replace the 240 already exist and it's the GTS430 which is not really faster since she perform mostly like ( or under ) a 5670 that is a bit over a GT240. the 5 series are for the high end card and 4XX for lower card.
Martin_metal_88
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