this post was submitted on 29 Jul 2024
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My guess would be that Framework releases a model/mainboard featuring Ryzen AI 300 (Zen 5). It'll probably be a while as they are in the process of releasing Core Ultra Series 1 right now, and these CPUs have been out since mid-December 2023.
So I wouldn't expect a new AMD model to be released before 2025. Maybe it'll be announced at the end of this year though.
The Ryzen AI 300 apparently only uses soldered RAM, so probably not.
It's definitely supported (although many manufacturers will use LPDDR5 for faster speeds at the cost of upgradability/repairability), see https://www.amd.com/en/products/processors/laptop/ryzen/300-series/amd-ryzen-ai-9-365.html
Isn't FP8 a type of socket? I'm not totally up to date on this stuff but that's my understanding.
Also, I'm pretty confident that LPDDR5 isn't faster than DDR5. The numbers aren't comparable and you'd need to halve the LPDDR5 numbers to get the DDR5 equivalent. Otherwise they'd put LPDDR5 in desktops.
DDR5 is supported up to 5600 MT/s (that's as high as JEDEC spec currently goes for DDR5 SODIMMs afaik) while I've seen Ryzen AI notebooks using LPDDR5X with 7500 MT/s. Latency should also be lower on LPDDR5X as it can be physically closer to the CPU.
There are some performance comparisons on older Ryzen CPUs/APUs showing that the iGPU benefits a lot from faster LPDDR compared to DDR.
You're right, I wasn't up to date on LPDDR5 vs LPDDR5X as far as speed goes.
But it still looks like Ryzen AI 300 won't support SODIMM at all.
We have yet to see what other AI 300 SKUs support when they release then I guess, and I usually take whatever LTT says with a big grain of salt. That being said, Linus might have some insider information because of his Framework investment. Framework will very likely know by now what their next mainboard supports in terms of memory.
It's a weird timeline. CAMM2 modules are basically right around the corner, and Intel's Core Ultra 2 only supports on-chip memory, and now AI 300 seemingly only supports soldered memory? This is all a bit weird to me.
I'd be fine transitioning to CAMM2 modules and making SODIMM obsolete, but a Framework mainboard with soldered on memory wouldn't sit right with me.