Not just 128 bits wide (standard on high end laptops and most desktops), but 8 channels. The latency is halved and over the last decades I've only been seeing

Not just 128 bits wide (standard on high end laptops and most desktops), but 8 channels. The latency is halved and over the last decades I've only been seeing very modest improvements in latency to main memory on the order of 3-5% a year.