Haswell’s GPU prowess is due to Crystalwell

Rumor: Haswell’s GPU prowess is due to Crystalwell

Crystalwell is not L4 cache on package as many have been surmising, it is more GPU memory on an interposer. We are told the GT3 variants of Haswell will have 64MB of on-package memory connected through an ultra-wide bus. While it won’t necessarily eliminate memory bandwidth problems, it will go a long long way toward minimizing the problem.