AFDS: the Trinity GPU derived from the HD 6900s Posted on 16/06/2011 at 07:39 by Damien
At the presentation of its future architecture, AMD accidentally gave away an important detail on the GPU used in its forthcoming Trinity APU: it will be derived from the Radeon HD 6900 architecture. To recap, this architecture is based on vec4 processing units, which have a slightly higher yield per surface unit making it easier to increase their number, instead of vec5s.
A laptop prototype equipped with Trinity.
While we thought a few days ago that the Trinity GPU might have 640 “cores” we then thought that this total would be made up of 128 vec5 processing units. Given that it’s been confirmed that vec4 units are used, while it is possible that Trinity does have 160, we reckon it’s more probable that there are 128 vec4 units, or 512 “cores”, which is likely to be enough to give a 50% gain in processing power.