Ok.. I think you guys just seriously mixed up the comparisons between the mobile video cards.
First of all the ATI lineup
*Older Gen = Newer Gen
Low-End X300 = X1300
Low-Mid X600 = X1400
Midrange X700 = X1600
and the nVidia lineup
Low-End 6200go (64bit) = 7300go (64bit)
Low-Mid 6400go (64bit) = 7400go (64bit)
Midrange 6600go = 7600go
Seriously.. the 7300go and the 7400go are clear successors of the 6200go and 6400go respectively. They are not better than any of the ATI cards that I just posted because of their 64bit memory interface except for the 7300go though (scores higher than expected).
I am basing performance from 3DMark05 @ ORB
From ATI cards
X300 = scores about 1000-1300 (overclocked scores get high up to 2000, odd)http://service.futuremark.com/compare?3dm05=882268
X1300 = scores about the same as the X300 ranges from 1100-1300 (very few benchmarks so its hard to tell if it can go any higher)http://service.futuremark.com/compare?3dm05=1952055
X600 = scores about 1700+http://service.futuremark.com/compare?3dm05=830320
X1400 = scores about 1800-2000 (reaches 2000+ easily with slight OCs)http://service.futuremark.com/compare?3dm05=1991440
X700 = scores about 3000+ (almost doubles the X600 scores since it has 8 pipelines)http://service.futuremark.com/compare?3dm05=1073662
X1600 = scores an amazing 4500+ (a clear step up from the X700 and goes to a whopping 12 pipelines)http://service.futuremark.com/compare?3dm05=1973451
now to the nvidia line of cards
6200go = scores about 800-1000 (a very limited card because of the 64bit architecture, X300 seems to be a better choice)http://service.futuremark.com/compare?3dm05=1723420
7300go = no scores in ORB database but ive researched the net and scores are near 1300-1500 or even higher (even though its 64bit interface is crippling this card, very similar to X1300)
6400go = only 1 record in ORB database which scored about 1078 (a very slight step up from the 6200 go with 64bit interface, due to limited results, score range may be inaccurate)http://service.futuremark.com/compare?3dm05=1920287
7400go = scores about 1800-2000 (very comparable to the X1400 but still has 64bit memory interface which limits its performance)http://service.futuremark.com/compare?3dm05=1901832
6600go = scores about 2500-2700, though some setups are overclocked to the extreme and can reach 3000. (a very good card that has 8 pipelines, still X700 seem to be better)http://service.futuremark.com/compare?3dm05=1373752
7600go = still no record at ORB, relatively new to the market, according to a forum member, he posted a complete result with a score of 3432 (compared to X1600, scores seem a little bit off since the 7600 go is only an 8 pipeline card)http://www.laptopvideo2go.com/forum/...showtopic=8896
All results can differ with 10% +/- tolerance since they were compared with different laptops (processor, memory, hdd, frequency clocks, these can all alter the scores)
IMHO, I wished ATI could do a better job in making their newer cards run faster than their older ones, for example, the X1400 is a limited card due to its 4 pipeline, but its highly optimized core only make it stand up.
For nVidia, they need to make those shitty 64bit memory interfaces to at least 128bit, 64bit is nowhere near good.
I based these scores from 3DMark05 and did not come from me from scratch, if you like to post your opinion or something then don't hesitate to post.