What's new
  • Please do not post any links until you have 3 posts as they will automatically be rejected to prevent SPAM. Many words are also blocked due to being used in SPAM Messages. Thanks!

AMD RDNA 3 Rumored to Have INSANE Specs! Navi 31 With Dual 80 CU’s Chiplets, 2.5x Performance ?!


Staff member
Folding Team
Oct 2, 2006

Let’s get started with AMD, and wow, we got a WILD rumor on our hands. On the CPU side, the company is already very familiar with Multi-chip module designs. It started with the first generation of Epyc and threadripper for the first generation of Zen, to the chiplet based Ryzen 3000 and 5000 CPU’s on desktop.

Anyway, it has been rumored that AMD would move that technology to their graphics products too. Many patents have popped up supporting that. In fact, the latest one was filed about a year and a half ago and was just published about a month ago on December 31rst of last year.

The patent describes how multiple GPU chiplets can be connected via a high bandwidth passive crosslink called HBX. It wouldn’t connect the actual fixed-function hardware like the compute units but rather it would unify the cache. Every module has its own set of l1 and L2 cache only accessible by the one chiplet, but the l3 cache is actually shared via the Crosslink we talked about earlier….


Well-known member
Folding Team
Feb 7, 2019
Been running LG phones since the first nexus 5 which was made for google by LG. Since then LG3/4/5/6/7/8x playing leap from between my wife and myself where I have ended up with odd numbered phones and she has had the even numbered ones.

Always assumed AMD would try to do chiplet GPUs.