About 128 or 64 bit

[lulumara]

Hi just want to know what's the different between 128 and 64 bit in Graphic cards? I bought a 64 bit asus graphic cards 4350 in newegg but kinda don't know what's the purpose of it. Gonna use it my dell 5150 computer.

 

[bomberboysk]

Its just the difference in memory bus width, eg- 256 bit bus is twice as wide as 128bit bus. Bigger bus=more memory bandwidth.

 

[newgunner]

I think you are referring to the memory interface? If so, in general the more there is the better but overall performance is dependent on other factors as well.

A quick definition from wiki: Memory Interface: This is the form of interface the graphics core has with its video RAM. As a number, it refers to how much data, in bits, can be read from or written to the memory every clock cycle the memory goes through.

 

[lulumara]

Thanks for good information I'm learning a lot on this site Cheers!!