AMD's Smart Memory Access was recently announced. In unoptimized games, they're projecting a 5% performance boost between their stock overclock and SMA (rumors

AMD's Smart Memory Access was recently announced. In unoptimized games, they're projecting a 5% performance boost between their stock overclock and SMA (rumors put the overclock at only around 1%). The bigger issue here is bandwidth. AMD hasn't increased their APU graphics much because the slow DDR4 128-bit bus isn't sufficient (let alone when the CPU and GPU are both needing to use that bandwidth). I also didn't mention PCIe lanes. They are notoriously power hungry and that higher TDP chip not only has way more, but also has PCIe 4 lanes which have twice the bandwidth and a big increase in power consumption (why they stuck with PCIe 3 on mobile). It's also notable that even equal cache sizes are not created equal. Lowering the latency requires more sophisticated designs which also use more power. https://www.amd.com/en/technologies/smart-access-memory https://www.amd.com/en/technologies/smart-access-memory