Nvidia's willingness to pay exorbitant prices for early 2nm wafers subsidizes the R&D and the brutal yield-learning curve for the entire node. But you can't run a sustainable gigafab solely on GPUs...the defect density math is too punishing. You need a high-volume, smaller-die customer (Apple) to come in 18 months later, soak up the remaining 90% of capacity and amortize that depreciation schedule over a decade.
Apple OTOH operates at consumer electronics price points. They need mature yields (>90%) to make the unit economics of an iPhone work. There's also the binning factor I am curious about. Nvidia can disable 10% of the cores on a defective GPU and sell it as a lower SKU. Does Apple have that same flexibility with a mobile SoC where the thermal or power envelope is so tightly coupled to the battery size?
For example the regular M4 can have 4 P-cores / 6 E-cores / 10 GPU cores, or 3/6/10 cores, or 4/4/8 cores, depending on the device.
They even do it on the smaller A-series chips - the A15 could be 2/4/5, 2/4/4, or 2/3/5.
For Apple, they have binning flexibility, with Pro/Max/Ultra, all the way down to iPads - and that’s after the node yields have been improved via the gazillion iPhone SoC dies.
NVIDIAs flexibility came from using some of those binned dies for GeForce cards, but the VRAM situation is clearly making that less important, as they’re cutting some of those SKUs for being too vram heavy relative to MSRP.
The Pro and Max chips are different dies, and the Ultra currently isn't even the same generation as the Max. And the iPads have never used any of those larger dies.
> NVIDIAs flexibility came from using some of those binned dies for GeForce cards
NVIDIA's datacenter chips don't even have display outputs, and have little to no fixed-function graphics hardware (raster and raytracing units), and entirely different memory PHYs (none of NVIDIA's consumer cards have ever used HBM).
Otherwise, yes, if a chip doesn't make M4 Max, it can make M4 Pro. If not, M4. If not, A18 Pro. If not that, A18.
And even all of the above mentioned marketing names come in different core configurations. M4 Max can be 14 CPU Cores / 32 GPU cores, and it can also be 16 CPU cores and 40 GPU cores.
So yeah, I'd agree that Apple has _extreme_ binning flexibility. It's likely also the reason why we got A19 / A19 Pro / M5 first, and we still don't have M5 Pro or M5 Max yet. Yields not high enough for M5 Max yet.
Unfortunately I don't think they bin down even lower (say, to S chips used in Apple Watches), but maybe in the future they will.
In retrospect, Apple ditching Intel was truly a gamechanging move. They didn't even have to troll everyone by putting an Intel i9 into a chassis that couldn't even cool an i7 to boost the comparison figures, but I guess they had to hedge their bet.
No, that's entirely wrong. All of those are different dies. The larger chips wouldn't even fit in phones, or most iPad motherboards, and I'm not sure a M4 Max or M4 Pro SoC package could even fit in a MacBook Air.
As a general rule, if you think a company might ever be selling a piece of silicon with more than half of it disabled, you're probably wrong and need to re-check your facts and assumptions.
There are two levels of Max Chip, but think of a Max as two pros on die (this is simplification, you can also think of as pro as being two normal cores tied together), so a bad max can't be binned into a pro. But a high-spec Max can be binned into a low-spec Max.
Not binning an M4 Max for an iPhone, but an M4 Pro with a few GPU or CPU cores disabled is clearly a thing.
Same for NVIDIA. The 4080 is a 4090 die with some SMs disabled.
The desktop 4090 uses the AD102 die, the laptop 4090 and desktop 4080 use the AD103 die, and the laptop 4080 uses the AD104 die. I'm not at all denying that binning is a thing, but you and other commenters are exaggerating the extent of it and underestimating how many separate dies are designed to span a wide product line like GPUs or Apple's computers/tablets/phones.
As you cut SMs from a die you move from the 3090 down the stack, for instance. That’s yield management right there.
If you want binning in action, the RTX ones other than the top ones, are it. Look for the A30 too, of which I was surprised there was no successor. Either they had better yields on Hopper or they didn't get enough from the A30...
> They need mature yields (>90%) to make the unit economics of an iPhone work.
Sauce on the number?
iPhones are luxury goods with margins nowhere near typical for consumer electronics. Apple can easily stomach some short term price hikes / yield drops.