David Wong from Wells Fargo asked great and direct question during AMD’ss financial Q1 2014 conference call, as he wanted to know the future of AMD’s graphics chips beyond 28nm.
When asked whether AMD will have have any 20nm GPUs this year or next year, Lisa Su SVP and General Manager of AMD’s Global Business Unit said: “We are 28nm this year, we have 20nm in design, and then FinFET thereafter. So that’s the overall product portfolio.”
Lisa didn’t want to be specific about graphics versus other products but it looks like 20nm is 2015 for both APUs and GPUs. AMD surprised many observers with its latest Hawaii generation of 28nm parts that ended up quite competitive and cheaper than competing products, but the real 20nm successor might be coming in 2015.
Nvidia apparently is working hard to ship its 20nm GPUs before the end of the year. GPUs will definitely benefit in shrinking from 28nm to 20nm. As the power consumption goes down, you can put much more transistors and greatly increase the computational power GPUs on new nodes. At the same time, you need less current to power the transistors and you are making the more efficient GPU and the performance per watt increases significantly.