I'm not blind the anything. Up until now, if AMD purchasers wanted more than 8 cores then they'd look at Threadripper. Ryzen 3000 offers (let's say) 16 cores so those purchasers who just want more cores are now spared the expense of the HEDT platform and kit they won't use. But like I said, Threadripper is not about having more cores, it's everything else that comes with it. And if Threadripper 3 starts at 16 cores, then where's the cannibalism? The crossover is a tiny, tiny portion of the Venn diagram for those looking solely at core counts.
I think I see the basis of the misunderstanding.
This isn't about people who actually need the features of HEDT downgrading to a mainstream platform so all the talk of the benefits of HEDT is really irrelevant.
This is about mainstream users who purely want more cores moving to HEDT just for that.
I saw it with Intel HEDT when DAW users and others jumped to HEDT purely for the extra cores.
Sure, some also wanted some of the extras and some gamers even convinced themselves that they actually needed more PCIe lanes when if I recall correctly the difference between 8x and 16x in dual GPU setups was insignificant.
Maybe this will make it clearer.
If Ryzen 3 topped out at 8C and TR3 16C is £500 do you think there is a market for 16C at that price even with the X series boards costing an extra ~£160 or so for TR?
Threadripper 1950X is just slightly over £500 today at certain stores and at 7nm there should be a decent profit on TR3 16C in that price range.
There is clearly interest in the supposed 12C and 16C AM4 chips based on this thread so clearly there's a market for them.
Do you really think that if 16C is TR only that hardly anybody who would otherwise would have bought it for AM4 at a similar price would buy it?
I think AMD would noticeably expand sales of TR if they did that.
So in not doing that they are definitely losing extra sales for TR.
Not losing TR sales to AM4 but losing out on people choosing AM4 over TR.
This is what I think you have missed.
I don't think this is a bad thing for consumers at all as most have no real interest in HEDT as a platform.
So in sacrificing more potential sales for TR they can really push ahead and totally annihilate Intel for the mainstream desktop platform which is great for consumers.
Surely TR is strong enough that it doesn’t need propping up anyway by limiting AM4?
Maybe you saw the word cannibalisation as a negative thing whereas I see it as a positive.