First post, by okenido
Is there a way to tell which bus width a GPU has, just by looking at the card ? This info is often not easy to find, I was wondering if we could calculate it from the ram chips datasheet.
For example I have two geforce 4mx440 cards, both have four memory chips on board :
- The first uses HY5DU561622CT-5 chips, labeled as " 256M(16Mx16) gDDR SDRAM" https://www.skhynix.com/eolproducts.view.do?p … =04&rc=graphics
- The second uses HY5DU283222Q chips, labeled as "128M(4Mx32) GDDR SDRAM" https://www.skhynix.com/product/filedata/file … oad.do?seq=4243
Does the "x16 / x32" in the chip description means their bus width is 16bit / 32bit ? So we could guess the first card has 4x16 = 64bit bus width, while the second has 4x32 = 128bit bus width ?