SK Hynix lists their GDDR6 memory as available

[WYP]

8Gb memory chips with speeds of up to 14Gbps.



Read more about SK Hynix' GDDR6 memory.

 

[AngryGoldfish]

That's quite a disparity in performance and density compared to Samsung, but I can imagine these will serve XX60 and XX70 cards while the XX80 and above will see Samsung GDDR6.