Archean Posts: 5,652 +103 Apr 4, 2012 #1 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.
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.
