AMD's Radeon R9 380X 'Fiji XT' GPU Die Size and GCN Specification Leaked - Releasing in June 2022

Some very interesting information was posted over at Bitsandchips.it recently. The report states apparent within information about AMD'due south upcoming Fiji XT dice challenge that it boasts a die size of 550mm². The report also lists other information and concludes with the fact that AMD will exist releasing the R9 380X sometime in June, just before Computex 2022.

A very conveniently named poster of an one-time Goggle box Prove. @ZDF Enterprises

Fiji XT has a die size of 550mm², rocks GCN 1.two and HBM, releasing before Computex 2022 - Alleges Italian Study

Permit's go step by step over the claims made by the commodity. First of all, Fiji XT apparently has a dice size of 550mm². That is a pretty huge die, considering that Hawaii was around 438mm². Notwithstanding, that nonetheless is comfortably away from TSMC's 28nm fabrication limit (which is 600-650mm² depending on the exact procedure).  For those interested, if you remember the dice shot analysis of the GM200 I did, I arrived at an reply of 632mm² with a loftier confidence and error of margin of 2.5%. That equates to ~619mm² on the lower jump. Even if you were to assume a lower confidence and 5% MoE, that equates to ~600mm² on the lower bound - still a larger die than the 550mm² mentioned here.

The 2nd thing mentioned is something we have known and reported for a long time - HBM retention. Unless AMD changes its listen, HBM is definitely on rails. It could come as a pure HBM retentiveness standard completely replacing GDDR5 retentivity or it could come as a a Hybrid retention standard with the HBM acting equally buffer. Either way,retention bandwidth bug are about to go not real. Thirdly they mention that with Fiji AMD should shift to a better, more efficient tiled version of GCN: 1.2. This is the same GCN architecture that appeared on Tonga and should provide a very decent architectural heave. Couple that with over 550mm² of dice size higher up and you have got a very formidable chip.

Now I am fairly confident that the assay I did would meet atleast the 5% error of margin (or low confidence), and so that puts the GM200 cadre at exactly 50mm² more dice area than the Republic of the fiji islands XT GPU at minimum. However, the Republic of the fiji islands XT is actually the R9 380X not the R9 390X. The R9 390X should be called Bermuda XT. I find it very interesting that AMD has left itself a margin to expand on the 28nm procedure; or could information technology be that their financial troubles are greater than anticipated? Taping dies is very very expensive, so I don't see the R9 390X arriving any fourth dimension soon, pregnant the Fiji GPU will remain the top tier AMD product for quite some fourth dimension. The GPU is thought to have 300W TDP (but imagine the functioning with that kind of TDP) something I wholeheartedly support on loftier cease GPUs. Equally you probably already know, AMD will be using a hybrid cooler to absurd this monster. It is expected to make it in June 2022, presently before Computex, Taipei.

Source: https://wccftech.com/amds-fiji-xt-gpu-monolithic-die-surface-area-550mm2-claims-italian-report/

Posted by: feldmanbefterver.blogspot.com

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