Navi has been shown to perform better than Vega with less bandwidth and less power. My guess is that Navi has undergone some last minute changes while AMD was transitioning from GF's 7nm to TSMC's and that it was not possible to implement that new architecture in time for Renoir. The "Vega" GPU inside Renoir is likely a more refined version of the architecture found in Radeon VII, which was in fact different from 14nm Vega in other areas than the manufacturing node.Maybe Vega can run with lesses memory bandwide? And Navi needs at least ddr5 to give enough memory speed?
What about the actual CPU ? Will AMD finally launch APUs with 6c/12t and 8c/16t configs ?A benchmark run of AMD's forthcoming Renoir APU has appeared in the SiSoftware database.
AMD Renoir APU Pops Up With 8 CUs Clocked up to 1.75 GHz : Read more