During last night’s announcements, AMD also confirmed that they will be enabling Smart Access Memory on their Ryzen 3000 series CPUs. Smart Access Memory, AMD’s marketing wrapper for resizable base address register was previously exclusive to their Ryzen 5000 series CPUs but has since been activated on Intel systems. AMD will now enable CPUs from their 2nd-gen Ryzen 3000 lineup to use this feature except the Ryzen 3200G and Ryzen 3400G APUs.
Resizable BAR is part of the PCI Express standard which allows CPUs to access a graphics card’s entire memory pool instead of the traditional way of seeing them in small chunks. This allows applications, particularly games, that can take advantage of the larger addressable memory space to improve performance, some as great as more than 10%.
Resizable BAR requires a supporting motherboard, CPU, GPU and drivers to work. Check with your manufacturer on complete details.
