
Regarding the Dayton, any 4200 128MB should reach around 310/566 (average around 300/550) so it depends how competative the price is and other factors like sw bundle. Adding a better HSF and RAM HS tend to do little more than invalidate the warranty, of course o/c'ing is likely to do that, but if they get a cards back that appears untampered with they will check it for manu defects and you may still get a refund, if they get a modded card back they won't even bother checking for manu defects which may have been the cause. The biggest reason for this is that the lowest GF4TI core I have heard of when o/c'ed is 280mhz, the highest is 325mhz, this would be just as likely the difference in production than inadequate cooling, in all of the reviews I've read HSF design makes VERY little difference (even those silly double fan & huge HS designs). Regarding the RAM, HS do help to disperse the heat and prevent the RAM from running so hot and should therefore prolong the RAM's life when o/c'ed. However, HS seems to make no difference at all when it comes to o/c'ing, the RAM used on GF4TI cards exceed the technical limit of the RAM in all cases I've seen. Technically 4.0ns should reach a maximum of 500mhz but 550mhz is about the average o/c on a 4200, again 3.6ns technically 550mhz but reaches an average of around 620mhz even on 42000 cards with TSOP implimentation ... heat really doesn't seem to be a problem.

I've never used a Suma gfx card, and I don't know which countries they usually distribute to either. Still I would expect the price to be around the 4400 mark, although it is technicaly (from the review at least) as good as a 4600. In any case '2D' IQ for all GF4TI cards I've seen reviewed suggest that differences are now small (unlike GF3 days where diffs were huge), Leadtek have had a few votes for being at the better end while MSI & PNY have been at the other end for IQ.