Asus has allegedly enabled AMD Smart Access Memory (SAM) on first-generation Ryzen CPUs, according to a Reddit user.
AMD’s SAM feature facilitates the CPU having full access to GPU memory, lifting certain memory constraints and giving considerable performance gains of up to 10% in some games.
SAM currently only works with AMD’s Big Navi graphics cards in tandem with Ryzen 5000 series processors and a 500-series motherboard, and it was believed the feature wouldn’t come to older chips due to the way they handled a particular instruction (PDEP).
…
Continue here:
https://www.techradar.com/news/amds-special-radeon-rx-6800-xt-boost-isnt-as-exclusive-as-we-thought