4 ms·
> Whom is Amazon going to sell low-bin Gravitons to? It isn't cost effective to run them, just like it's not cost effective to use low-binned Intel or AMD chips
by tengbretson 6y ago
> Whom is Amazon going to sell low-bin Gravitons to? It isn't cost effective to run them, just like it's not cost effective to use low-binned Intel or AMD chips in datacenters. It's intrinsic to the way all chips are manufactured.
If they're starting with designs that are very energy/heat efficient then couldn't they fuse off the bad parts of the dies and then glue like 10 of them onto a single interposer and still have a tdp competitive with x86 server parts?
- mechagodzilla 6y agoNo. First of all, the efficiency is part of the binning process (some chips are just worse than others). But adding the logic to be able to scale to that many die (high speed SERDES, large caches with lots of cache coherency traffic flying around) takes up more power, and doing the engineering for a large interposer where one wasn't needed before, enlarging the package the interposer sits in, etc. is expensive. Gluing together a lot of defective die on an expensive interposer/package is a bad idea from just about every perspective.