Posted by intelkishan 2 hours ago
The difficult question is more whether foreseeable memory demand will remain at the current level, grow further, or shrink again.
Really?
How long do we have to wait until that ... cost reduction hits us?
Likewise it's probably dwarfed by improvements in how we make dram - continuing the roughly exponential (maybe a bit less recently) scaling of chips - but not necessarily.
The 2x from returning to previous costs is interesting because it's practically guaranteed, and it's on top of everything else. We're just currently "overpaying" (relative to the stable market price) for the manufacture of dram because of a sudden increase in demand.
That is to say at least you were able to buy them at $350 today, with the current trajectory there will be no supply at all in few months.
Looking at the current prices, even of the same RAM, is just insane. Those companies really need to pay us compensation damage here. The whole "free market" notion does not work when you have de-facto monopolies and mega-corporations abuse average Joe and average Jane.
Those are not normal pricing. Before the pricing collapse in early 2020, 96GB DDR5 would have cost about $450 to $500. And I will need to restate again the cost of DRAM hasn't really changed much in the past 20 years. Its price just goes up and down in cycles.
So in reality it is more like going from $500 to $1300. But consumer felt it was more like going from $200 to $1300.
Crucial are already selling DRAM made by CXMT. And China are already throwing money at it. I doubt the memory bubble will burst in next 12-24 months. As in going back to money losing DRAM pricing. As they will all pivot to HBM or other money making products. But the bulk of lower end consumer DDR5 or LPDDR5 will goes to Chinese Foundry. Assuming they have figure out how to do them well. Which they have improved but are still so far away from industry leaders.
Normally memory maker will push the next DDR standard to market just to push out Chinese competitors, I am not sure it will work the same this time around. DDR5 have plenty of other usage / demands.
Historically the price has always trended downward. When I first got into computing $200 could buy you 128 MB (yes M) of ram. Really nice systems had 512 MB.
That's obviously changed over the decades as process shrinks have lead to higher memory density. We should generally expect that ram will cheaper up and until the point where process shrinks stop happening. They've definitely slowed, but they haven't stopped.
Crucial was disestablished this year.
I don't see it going away. I mean, it may not grow as fast as now, but I don't see it growing away either. I get why the memory makers do not want to bankrupt themselves, but it feels like there's got to be some way to push that risk off onto model providers and other people in the ecosystem to allow us to grow ram capacity more like 50% per year.
What if its in everyone's interest to buy computers at say 1/3rd the rate and switch everything over to HBM?
the discrepancy between compute and memory has been growing for ages, perhaps a painful switch to HBM is exactly what we need?
Would you rather have 3 intermediate computers with low memory bandwidth, or wait a little longer statistically so that we can all enjoy a new computer at 1/3rd the rate but much higher bandwidth than the area ratio?
As for 20-25% growth not being enough, I think it's not that far off, if we assume data center build out plans hit a wall and slow down significantly, and the AI heat starts to cool off.
I don't think 20-25% may be enough in the short term but if the AI build out stops within this year, we have a massive oversupply instead of a under supply.
Let me explain, imagine CXML grows massive and builds a lot of fabs, so much so that it becomes the leader in multiple segments, then the market demand cools off.
Then CXML the company that invested massively has oversupply so it undercuts every other memory company.
Aka, Samsung, SK Hynix are dead, and to protect Micron now US has 10000% tariff on the supply of memory.
Imagine. Because that has happened, if you don't play the boom and bust game someone will because the market is very large during a boom, and generally the player scaling more isn't the one with margins to protect and generally has the ability to undercut others.
Asian memory chip giants were made by under cutting European and American companies, American companies adapted by moving manufacturing to Asia, and European ones got bought for pennies or dissolved.
But can massive gains still be made? Definitely.
The entire AI hype is based on the paper Attention is all you need, and Attention is basically loading a huge matrix of all the tokens in memory, how well you can optimize this attention layer is basically how most architectures are trying to solve for performance and memory usage.
Only one with significant gains in it is DeepSeek (or so I would like to believe because others don't make their work open for folks like me not in Big AI Labs to read). Their MLA architecture reduced KV-cache memory requirements by upto 90%, ofc that's purely architectural change.
With some quantization like Turboquant from google you could push it down to ~1/3 of that. So 96% memory savings when talking about kv-cache.
But the models are close to being saturated for quantization based memory optimizations. We will have to see some architectural changes for a significant shift now.
We just haven’t reached the diminishing return of gen AI capabilities yet.
Models will get more useful if you have higher context size or higher param size. Then people will just use the models even more, leading to even more memory demand.
The VRAM in the 5090 is only made by one country in the world.
The 50xx series is special, because its ram is so dependent on a single commodity. It’s not like a 4090 or a 3090; their VRAM chips have been around for years.
If there’s a shortage or interruption in DDR7 VRAM, it seems like every GPU that requires it would explode in value.
I hope I don’t regret posting this because I’d really like to buy one myself…
I really need to shut up, or bite the bullet and by one.
If you graph the tokens per second on the 5090, your jaw will hit the floor at how cheap it is
The RTX 5090 is faster than an H200. It just has less ram (32 vs 141), doesn't have NVLink, and technically isn't allowed to be used in a datacenter.
The datacenter GPUs sell at an 80% margin. They're incredibly overpriced. But the laws of supply and demand are undefeated and so here we all are.
H200 has HBM and much more 64-bit compute
RTX 5090 has more CUDA cores that run at a higher clock speed. H200 has more RAM and significantly more RAM bandwidth.
Which one is net faster depends on your use case. But you may be very surprised that many workflows are faster on an RTX 5090!
People used to get into gaming pcs as an affordable hobby, now it’s making general aviation look like plan B.
Can’t afford a computer because they bought up all the supply? They’ll conveniently sell it back to you with a subscription!
You’ll own nothing and be happy.
They've intentionally crafted an unsustainable business model in an effort to get users in the front door and raise their MAUs. We've seen this story before. We should know precisely where it's headed.
If hyperscalers are using more RAM, and that RAM is not available for consumers, it means all the heavy stuff will happen in the cloud. Why would we want both the hyperscalers and consumers to have RAM simultaneously? Consumers would want more RAM to run local models but then hyperscalers capacity will be unused.
Most users don't seem to care about storing everything they generate in cloud services and this could easily be sold as an alternative to owning "expensive" desktop or laptop hardware.
However, that the hyperscalers and AI companies aren't doing this says a lot about their true beliefs about how much future demand AI will have.
AI companies claim they will need a ton of massive expansion, but are unwilling to take on the risk of the capital needed for that expansion.
I'm hearing a lot of sad whining from AI folks about how these chip makers are holding them back, but who actually has the money to finance the expansion easily? Chip makers have been through this game far longer, when Sam Altman went around claiming it was time for $7T of fabs the AI companies made it clear that they were willing to make ridiculous claims, eliminating credibility.
What's needed now is for them to funnel a tiny amount of their massive piles of cash into financing fabs directly.
Just look at how Intel has struggled to compete in recent years, and they have been in the business for decades.
They forgot Moore's main lesson: only the paranoid survive. They thought they could coast, and it nearly killed them.
"Only the Paranoid Survive" is rather a quote and book title by Andrew S. Grove.
Also had to do an Intel build, and there was no way we were going cudimm at current prices. =3