[jsheard]

> The new idea is having 512 bit wide memory instead of PC limitation of 128 bit wide.

It's not really a new idea, just unusual in computers. The custom SOCs that AMD makes for Playstation and Xbox have wide (up to 384-bit) unified memory buses, very similar to what Apple is doing, with the main distinction being Apples use of low-power LPDDR instead of the faster but power hungrier GDDR used in the consoles.

[atq2119]

Yeah, a lot of it is just market forces. I guess going to four channels is costly for the desktop PC space and that's why that didn't happen, and laptops just kind of followed suite. But now that Apple is putting pressure on the market, perhaps we'll finally see quad channel becoming the norm in desktop PCs? Would be nice...