Why do all similar products have a hard limit on the 128 GB VRAM part? For that price, I hoped to get at least 224 GB VRAM

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wmf 3 hours ago | parent | next [-]

The 495 is going to support 192 GB. It depends on the memory bus.

128 bit: 96 GB?

256 bit: 192 GB

512 bit: 384 GB?

1024 bit: 768 GB?

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croes 3 hours ago | parent | prev | next [-]

Because it’s a limit of the platform

https://community.frame.work/t/was-there-no-possible-way-to-...

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jauntywundrkind 3 hours ago | parent [-]

From the replies,

> A shame, really, as the Ryzen 7640U, 7840U, 7840HS, and 7940HS all support 256GB of RAM.

To be fair, those platforms support dual dimms per channel, which Strix Halo would not, at least not at it's high speeds.

But reciprocally Gorgon Halo 400 just launched and it supports... 192GB. And is the exact same APU.

Memory chips did finally have their first big doubling per chip semi recently (available last February), with 48 & 64GB dimms becoming available. There is some reasonable lag here, that Strix Halo & Gorgon Halonuse lpddr5x, which perhaps had some lag, that 32GB (x4) was the best available. But now with Gorgon Halo being 192GB capable but not 256GB, it sure feels looks & seems like this is just bad spirited fuckery from AMD. https://forum.level1techs.com/t/where-are-the-ddr5-unbuffere...

	▲	wmf 2 hours ago \| parent [-]
		I assume they validated certain DRAM chips when the 395 first came out and they're just not going to validate any more. So newer DRAM is validated for the 495. We can't compare DDR5 and LPDDR5 since they are completely different; if 256 GB DDR5 is possible that doesn't mean anything.

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HDThoreaun 2 hours ago | parent | prev [-]

All the gpu makers make all their profit selling datacenter products. They don’t want consumer/home lab stuff with lower margins to replace their data center products so they handicap the vram in those products to make them less enticing for datacenter use.