Yes, with the volatility of the DRAM market, no DRAM manufacturer would lock themselves into a multiyear contract at a set price. Likewise no device maker would lock themselves into a multiyear contract at a set price. For example, Sony would look pretty silly if they had a 5 year contract for GDDR and then the year after they made the contract, the price of GDDR dropped below what they were contracted for.
Contracts are likely to be either short term for fixed pricing or tied to prevailing market price trends for longer term contracts.
Contracts for set prices are also likely tied to set # of chips. IE - DRAM makers must supply the entire market, one DRAM consumer therefore can't get a contract that would potentially require all DRAM allocation be allotted to them. After a certain point, they will be required to compete with other DRAM consumers for the limited supply available.
In other words, at the start of this console generation, Sony would have had an easier time negotiating favorable pricing as demand from GPU manufacturer's was relatively steady and were still in decline at that time due to a weak PC market.
http://www.iconnect007.com/index.ph...arket-slides-nvidia-dominates/88229/?skin=ein
Even then, GPU makers in 2013 shipped 65 million units in
1 quarter. GPU shipments dwarfed PS4 shipments even back then. However, due to a declining market, GDDR supply was thus higher than demand and thus Sony could get favorable pricing despite being a lower volume consumer.
https://wccftech.com/nvidia-amd-discrete-gpu-market-share-report-q3-2017/
While no numbers for volume of units shipped, it shows that GPU shipments have been growing and are at a 5 year high.
So, since 2013, discrete GPU shipments have increased and PS4 shipments have increased. While some SKUs use HBM or GDDR6, the vast majority of boards still use GDDR5.
In other words, NV and AMD will have an easier time negotiating bulk pricing. But everyone is paying more for GDDR now compared to 2013.
While cryptocurrency isn't the only market increasing demand for GPUs (AI is increasingly putting pressure on GPU makers as well) and hence GDDR, it was unexpected, and hence caught the industry by relative surprise. Everyone has been scrambling not only to meet demand of traditional consumers (PS4 included), but also the demand for cryptocurrency.
Regards,
SB