It's not by a hair if Samsung 980 read/write is 6500/5000. That's 1.5 GB more. So, it's possible for PS5 to have such SSD speed or little more.
According to this article isn't 5% at most, over 5% or even 10%
DRAM, NAND Flash, SSD, Module and Memory card, and provides market research on spot and contract prices, daily news, market views and reports, and monthly datasheets of semiconductor industry.集邦科技
dramexchange.com
Btw. HBM2 price dropped significantly recently. 3 years ago from 160$/GB to todays 120$/16GB. If Vega has HBM 2 memory, well, that was 3 years ago, then PS5 3 years later can have HBM 2. And also, Sony is still silent on RAM type because some reasons.
You can't rely on DRAM Exchange as a representation of what the memory will cost the end-user (client) purchasing it from a given manufacturer. It's more as a valuation on the memory similar to a stock (kind of the reason they went with that website name to begin with). Yes a client can go to a supplier and use the price as a quote for bargaining, but chances are they are not going to get it at that price. Plus there are other market and industry factors that can't be reflected in the quoted rates. In a way, it's similar to when tech companies give theoretical performance numbers vs. real-world measurable performance metrics; they don't always align, and for certain use-cases they mis-align badly.
The 10% quoted figure is just the worst-case scenario speculative; these sort of things happen all the time and generally the worst-case is never reached, not even close. The RAM industry as a whole just got out of some rather nasty price-hiking (same with the GPU market); they aren't going to let that type of scenario play out so soon again. Also you have to consider that price increases can also be reflective of there being too much demand and the increases are meant as a way to stem some of that demand. Apple IIRC is looking to utilizing GDDR6 for upcoming products, but if you look at the timing of the supposed price increases with the system launches, it's most logical to conclude that Microsoft and Sony are also part of the reason for that demand, most likely for their next-gen gaming consoles.
Sony has been quiet on a lot of things, but when we look behind the scenes, it's easy to assume that not all of those reasons have been for keeping cards close to play as an ace in the hole. It
could be due to having a surprise with HBM, but there's
just as likely a chance they could be using GDDR6 and don't feel a need to mention that ATM since the amount on its own may not come off as super-impressive (won't represent an 8x increase in RAM, same with XSX) and that it'll be a known commodity. Going by past trends, I'm going to go with the latter of those, which is more than sufficient for gaming tasks and gaming-related data compression routines.
The current rumored bandwidth of PS5 and Xsex of its GDDR6 RAM is 500+ GB/Sec. Is there some sort of ESRAM, EDRAM which can be implemented/added in conjunction with GDDR6 so that it can 'boost' the bandwidth to 800GB-1 TB/sec range (similar to HBM2-HBM2E-HBM3E memory)?
Not really; the DDR3 +_ESRAM combo in XBO was already supposedly a nightmare for devs back then, because while the ESRAM gave a lot of bandwidth, that particular bandwidth was only applicable to the 32MB of ESRAM, not the 8GB of DDR3. MS even got called out (deservedly so) for trying to fudge the bandwidth numbers by combining the DDR3's bandwidth with the ESRAM's to state total system bandwidth (it may not've been MS tho, but media doing such instead).
Any ESRAM/EDRAM/NVRAM/MRAM/FRAM whatever either system would add as bandwidth "booster" would be applicable to that particular memory only; devs would still need to manage data between that memory and the GDDR6, whatever total system bandwidth you'd get would be between the two memories and therefore their own sizes. However, going with one of those other memories as a secondary pool would limit Sony or MS to a pool size of only a few megabytes, since they're all costly.
You're likely looking at 32-64MB at
most for any of them, with BOM prices probably going between $15-$40 for them depending on the type and the size. Some of them, like FRAM, I don't even think are manufactured in capacities reaching 32MB, so you'd be looking at multiple chips, in parallel for best results (but that increases the real estate for the chips on the motherboard).
www.resetera.com
