How much die area to be exact? Flute confirms Sony is willing to gimp the cpu cache by a massive amount to save on fire area and tdp. Are we looking at over 10 mm2?Even though I'm a card carrying member of the HBM fan club, there's nothing it can do that GDDR6 can't with a little more power. You'd have to prove it has more advantages than just power savings and a little die area IMO.
Cost savings could be huge considering how expensive gddr6 is. $10 per 1 gb means 160 dollars for 16 gb. 8gb hmb2 plus 12 gb ddr4 should be much cheaper right?