64-bit vs 128-bit

[pengwin]

im looking to get a low end videocard for a friend and i noticed that the 7300GT comes in 64 and 128 bit version, is it what is the performance difference and it is worth the extra cash for the 128 bit?

thanks

 

[skud]

the 128bit will be far superior

 

[manicmenace]

you want the 128bit, its the type of ram they put in i.e. the architechture it uses bus width to be exact, higher bus width = faster on the same card you wont see much difference though

 

[thelostchild]

you want the 128bit, its the type of ram they put in i.e. the architechture it uses bus width to be exact, higher bus width = faster on the same card you wont see much difference though

I've always found the difference between them to be suprisingly high, the extra bandwidth is always useful

 

[manicmenace]

on a 7300... u know where i'm coming from ! lol

 

[quantumsheep]

im looking to get a low end videocard for a friend and i noticed that the 7300GT comes in 64 and 128 bit version, is it what is the performance difference and it is worth the extra cash for the 128 bit?

thanks

Well, the 128bit has double the bandwidth of the 64, making it better. But when buying a 7300GT make sure it's the GDDR3 model not the quite frankly atrocious GDDR2 model.

 

[sailer]

Hi Penqwin, haven't seen you around for awhile. Anyway, the 128 bit will be much better. Its not just the doubling of the bits, but how they work together in a mathmatical progression. As I understand it, a 64 bit will provide 4096 (64x64) paths to work from, while a 128 bit card will provide 16384 (128x128) paths. This is a little simplified, but should show the advantage.

Only question would be, why the 7300 GT? Unless constrained by budget, the 7600 GT would be be far and away a better card. If budget is a problem, an ATI X800 GTO 128 bit would be a better card and it sells for about the same. And as others have said, with the 7300 GT, make sure its the GDDR3 model, not the GDDR2.

 

[pengwin]

yeah, ok thats what i was thinking, that performance would be about 50% better on the 128bit.

anyways i found a better deal

X1300XT, its an X1600 core underclocked. 75 dollars




yeha i've been busy lately, i'll try to get back on the forums