HD 4550 memory speed.

jmsk · Feb 12, 2011

http://www.tigerdirect.ca/applications/searchtools/item-details.asp?EdpNo=6411278&pagenumber=1&RSort=1&csid=ITD&recordsPerPage=5&body=#ReviewStart

Hi all,

Ive got the HD 4550. 1GB card. Though it seems the highest my memory can go is 500mhz. When I open the Catalyst control centre, the highest I can set it to is 500mhz. So I'm wondering why its advertised as 1000mhz, but I can only actually get half of that.

Thanks.

rolli59 · Feb 12, 2011

It is Dual Data Rate effective 1000 Mhz actual 500Mhz!

jmsk · Feb 12, 2011

Ok, so that means I am getting 1000mhz out of it? Sorry but I'm still learning about video cards.

rolli59 · Feb 12, 2011

No problem. Same applies to system ram for example DDR2 800 runs at 400 but has effective 800 because of the DDR.

jmsk · Feb 12, 2011

Great, thanks for the information.

stillerfan15 · Feb 14, 2011

rolli59 :

So the same applies to my ATI 5570 that shows 850HHz Memory clock?? Thanks,
Dave

rolli59 · Feb 14, 2011

Yes if it is advertised GDDR3 at 1700Mhz then it would show as 850MHz.