I have yet to see any significant gains from either the Leadtek or Gainward.
In fact I have yet to see a reviewer o/c the Gainward or Leadtek card over what a Visiontek, MSI/PNY, or any other brand can do.
Everybody saying they can get 4600 speeds out of the 4400 is nothing new.
ALL the cores are the same- All the memory is the same.
The only difference is heatsink design. Which has yet to show any improved gains.
I run at 315/660 with no problems, no xtra heatsinks, barely any cooling in the case, with a cheap card.
Here's a quote from GamePC 4600 shootout-
<< As for the much heralded Leadtek Winfast A250 Ultra TD card that everyone is talking about, we were somewhat disappointed in this card, not only because it didn't overclock incredibly faster than the competition, but also was quite a bit louder compared to other GeForce4 cards in testing. Not to mention, it costs quite a bit more too.
If nothing else, remember this if you read this shootout. Every GeForce4 Ti4600 card performs exactly the same. Sure, there are some small variances here and there, but when you look at the numbers as a whole, we generally see a 1-2% variation of benchmark scores between the different cards. When shopping for a GeForce4 card, don't go with a name brand just because you hear they're faster, go with the card that's right for your budget and has the features that you're looking for. >>