Although not related to Nintendo's new hardware equipped with Drake, Samsung projects LPDDR6 to be released at around late 2025 to early 2026 according to Samsung's DRAM roadmap shown during
Samsung Memory Tech Day 2022.
if Nintendo keeps going with this Switch or adjacent concepts (ARM+NV+LP) devices, they are in for gaining a lot I think in terms of memory speeds. Really great gen-on-gen leaps while also being lower power consumption and not even factoring more efficient architectures wrt Memory Bandwidth utilization
With LPDDR5 on a 128-bit memory interface it should be at most 102.4GB/s.
With 5X on a 128-bit memory interface it should be 136.5GB/s at most.
With LPDDR6 and it’s projected 17000MT/s, so it should be double the 5X projection and offer ~273GB/s on a 128-bit interface, this is really fast for a portable!
And here’s only in theoretical, but let’s assume that LPDDR6X is a 20-30% improvement, then that would be 327.6-354.9GB/s!
Which would be right in line with when Nintendo’s next console should come out I think… or maybe they’ll go with LPDDR7 by then? Who knows!
And this assumes all goes well of course…
But here’s where I posit the question, with LPDDR seemingly gaining a lot in bandwidth, would we see the next consoles from the other platforms move to LPDDR memory as a way of reaching higher memory capacity?
Currently, they utilize several GDDR6 memory modules to meet their bandwidths of 560+336, 448GB/s and 224GB/s respectively. However, this was the smaller increase in available memory gen on gen compared to previous generations.
The PS6 and Series X^2 for instance would need to offer a memory capacity upgrade, will they go a smaller increase to 24GB for the system or 32GB? Here’s where I think that LPDDR memory can actually help since they can tend to come in higher capacity…
But not the best in terms of bandwidth vs GDDR, though they do have a lower latency and are only worse to DDR memory.
Like for example, the Series X has a 320bit interface and has high speed of 560GB/s, with LPDDR6 it would be equivalent of 682GB/s but it’s several years late by then. Not a major increase but not a
negligible one either. PS6 by comparison would only be 546GB/s.
However, it can probably be a 32GB console for devs to work with over a 24GB console. This is only speculative of course.
This is all still pretty expensive of course but… again only speculative.
Consoles could use HBM but that has an obscene level of latency and it is the worst of the bunch compared to DDR, LPDDR and GDDR.
Perhaps…. Mixing of tweets concepts could be the way for consoles as they move forward, using LPDDR can help reach higher capacity for less modules, but also adding more cache to the SoC, even a separate tile, to help reduce memory bandwidth constraints in those consoles in the long term.