Comment by Neywiny

6 hours ago

HBM is also DRAM. I also think it's kind of a weak argument to say that them discontinuing ddr3 (which while in use still today in industrial/embedded was on the way out for consumers 10 years ago) and ddr4 which last had consumer CPUs for it 3 years ago is meaningful. What we need now is ddr5. Turning off the old fabs and moving those resources including people to ddr5 is a good thing. That's not price fixing. It's possible price fixing is in play, but discontinuing products people objectively don't use as much anymore isn't it.

Switching off DDR3 manufacturing I can understand, but DDR4 machines are still quite relevant and usable… Ryzen 5000 series boxes for example don’t feel meaningfully weaker than they did when new. My 5950X tower certainly doesn’t, and it’d really be nice to be able to upgrade its RAM should I need to because it will continue to be useful for quite some time.

AMD just re-released their 5800X3D for AM4 board users who wish to upgrade which is further evidence that shutting off DDR4 production is premature.

  • They're running a business not a charity. Their job is to manufacture what the market as a whole demands. If they can make more money making HBM than DDR4 then they have to make HBM. Why would a business go out of its way to make less money?

    • 1. The AI bubble is an insane distortion and the gravy train isn’t going to last forever. Betting the farm on everlasting datacenter demand is myopic.

      2. In a healthy, competitive market there would be smaller manufacturers that’d be happy to take up the big guys’ discarded business.

      9 replies →

Dropping DDR-4 is anything but meaningful. It'll easily last 10 more years, machines from this gen are still much more affordable and quite powerful. In fact for most dev and gaming workflows the difference between the DDR-4 and DDR-5 generation of hardware is more or less negligible. I am exaggerating a bit -- but really, not too much.

Of course it might be a ploy to sheep-herd consumers and companies towards the expensive DDR-5. I would not put that below the ring of RAM producers.

  • >Dropping DDR-4 is anything but meaningful. It'll easily last 10 more years, machines from this gen are still much more affordable and quite powerful. In fact for most dev and gaming workflows the difference between the DDR-4 and DDR-5 generation of hardware is more or less negligible. I am exaggerating a bit -- but really, not too much.

    How much % of the DRAM market do you think is made from computer enthusiasts upgrading their Zen 1/2 CPUs to Zen 3? Note intel and AMD both switched to DDR5 well before the exit from DDR3/DDR4 ("2024-2025", according to the complaint).

    • Note though that for Intel, the first gen of DDR5 CPUs also supported DDR4, and many buyers bought the DDR4 versions of their boards because at that point DDR5 RAM was much more expensive for gains that were marginal at best, which effectively makes Intel’s following generation of DDR5 CPUs the actual transition point.

I was hoping it was a typo, and they actually meant 4 and 5... I didn't even know people made products that still use ddr3.

> objectively don't use as much anymore

Consumers use these every single day in embedded devices without knowing it.

I wouldn't be surprised in the slightest if the embedded DDR3/DDR4 market greatly exceeds the number of consumer desktop computing devices in terms of "devices with memory" (not in sheer IC count or nominal size though.)

The level of design effort and PCB expense to go from DDR3 to DDR5 is enormous.

It's easy to see why your argument is wrong with a simple hypothetical: what if they were still making DDR4 today? Would people still buy it?

The answer is an obvious "fuck yeah", even if you ignore the DDR5 price gouging. People will buy it because people still have DDR4 hardware, and that hardware is still extremely relevant.

So if there's a market for it, but none of the suppliers are trying to sell to it... Wtf is happening? Basic capitalism logic says any rational supplier would sell DDR4 for easy profits, meeting an unmet demand. That it isn't happen points to some kind of collusion, IMO.

  • Because the market pays less for DDR4 than for HBM (or DDR5), and since HBM is heavily modified, vertically stacked DRAM, it competes for the same raw inputs and fab space than DDR4 used.

    If I can produce DDR4 for modest profit or HBM for a lot more profit I will obviously produce HBM. And given physical realities producing HBM takes from existing DDR4 production capacity. Worse still, it takes roughly 3GB of ram to produce 1GB of hbm iirc.

  • > People will buy it because people still have DDR4 hardware

    The question is whether there’s enough meaningful demand for aftermarket DDR4 upgrades to make it worthwhile to a manufacturer to keep producing DDR4 instead of switching to HBM and DDR5.

    Micron claimed retail is a rounding error, a market not worth serving. So you’d presumably need to find industrial buyers who would be willing to buy DDR4.