According to a report coming from Digitimes.com, the issue is in the packaging of the RX Vega GPU and HBM2 memory on a single interposer, which is probably why we have seen different packages of Radeon RX Vega GPUs, coming from different sources. Other reports also suggested that the issue can be attributed to the problems with Advanced Semiconductor Engineering's (ASE) packaging technology.
Courtesy of Techpowerup.com
While there is certainly a shortage of HBM2 memory, which has been confirmed by various sources, the the recent announcement of the production ramp up at Samsung, as well as further production increase from SK Hynix, is likely to eventually overcome this problem.
AMD is facing heavy RX Vega shortages and as we wrote earlier, we expect to see higher Radeon RX Vega 64 and RX Vega 56 stock as well as custom versions of both versions sometime next month. AMD also announced that it is working to increase Vega stock in the coming weeks.
The shortage heavily impacts the price of these cards on retail/e-tail shelves and despite AMD's assurance that it is sticking to the announced SEP (suggested e-tail price), Radeon RX Vega 64 has been selling at way over its US $499 MSRP.
Hopefully, AMD will be able to overcome the shortages and finally put some pressure on Nvidia's higher-end lineup.