Relayer They don't seem to have a lot of defective chips either though.

How do you arrive at that conclusion? I haven't seen any indication of wafer volumes.What I have seen is:The Tonga salvage part launching before the full die. How often does AMD do that?A general paucity of Fury/Fury X parts in the retail channel (including some pointed talk of what amounts to drip-feeding the channel by etail reps such as OcUK's Gibbo - who if I remember correctly got the lions share of the UK's Fury X supply.While there are as many Fury X reviews as those of the (non-X) Fury, the Fury X reviews were staggered over almost two weeks as review samples were shuttled around the globe. The (non-X) Fury - despite being limited to two AIB designs (Asus Strix and Sapphire Tri-X) - again, when was the last time that happened ( freezing out Gigabyte, HIS, MSI, VisionTek, XFX, and as far as I know, PowerColor's SKU hasn't hit retail yet in any numbers) had wider coverage on its launch day.Ask yourself - if this was another vendor with limited supply, staggered reviews with the salvage part SKU receiving more site review coverage, and limited AIB involvement that cut out a number of IHV-specific AIB's, what would your initial conclusion be?I don't know what the yields are - and I suspect you don't either - but there is a lot of circumstantial evidence surrounding not just Fiji, but Tonga also regarding availability of full die parts. HBM/Interposer likely play a large part in Fiji's availability, but Tonga suffers no such manufacturing issue....and if the reason a full die Tonga wasn't released for discrete desktop is because of weakness against incumbent parts, why reuse the architecture en-bloc for Fiji?