<< No, not really. A stock LE is significantly slower than a GTS. >>
Yeah, maybe, but then again a stock LE has the HyperZ inactivated and it's running much slower @ 148/296 MHz than even the RAM's speed rating. (6 ns, hence 333 MHz.). The GTS comes with the same speed RAM.
Say a GTS can overclock to 400 MHz. That's a 20% overclock over the stock 166 speed. The LE may also hit that speed at a 35% overclock since they have the same RAM. Say even if it hits only 380 MHz, that's still a 28% overclock, and there's no guarantee a GTS will hit 400 stably either and indeed, many don't. And that's not even counting the HyperZ hack. For the record, I can bench at 410 MHz on my LE, although it is unstable. I get a few artifacts at 400 MHz. It's stable at 390+, but I run it at 382.
So arguably one may expect the LE to overclock much better than the GTS percentage wise. That said, the GTS at 333 is still faster, probably about 15% (or maybe 20% on a good GTS day) on average I'd guess compared to an LE+HyperZ at 333. Similarly, the GTS is probably about 15% faster overclocked as well assuming that they overclock similarly over 333. So, if you have the extra bux and you can get a GTS with good 2D, that's great, because it's a fast card. However, in this price bracket I'd just skip the GTS and go right to the Geforce2 Pro. OTOH, if you're on a budget then the LE is great too, and of course you're guaranteed good quality 2D.