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I haven't been following closely enough to know what the obstacles are, but I wonder why some of these vendors don't experiment with wider system memory buses t
by saltcured 3y ago
I haven't been following closely enough to know what the obstacles are, but I wonder why some of these vendors don't experiment with wider system memory buses to increase the bandwidth along with these iGPUs gaining more interesting cache and IO topologies.
My memory is that we used to see more variation with single, dual, triple, and quad channel memory configurations in essentially prosumer/pro desktops. But lately, it seems like everyone has just stuck to dual channel and minor variations in memory timing of the same DDR generations.
- clamchowder 3y agoiGPUs like the ones in PHX/MTL have to go into handhelds and ultrabooks, so they're going to be power and thermally limited in before 2-4 MB of cache + LPDDR5 becomes a major bottleneck. Now if you can give the iGPU a 80W power budget instead of maybe 15W, that's a different story. But at that point you're competing with discrete GPUs that can show up with GDDR6, and maybe an iGPU doesn't make so much sense anymore.