3 ms·

I would be very surprised if AMD isn't looking into "HBM-lite", i.e. same 2.5D structure, but instead of the parallel HBM interface, using a serial IF/GMI inter

I would be very surprised if AMD isn't looking into "HBM-lite", i.e. same 2.5D structure, but instead of the parallel HBM interface, using a serial IF/GMI interface (fewer pins, higher frequency), so that you can mount it on a much cheaper organic (PCB) interposer.

rowanG077 3y ago
HBM is slower per pin then DDR. If you reduce the pin count so that you can mount on a separate PCB then DDR will beat it.
nsteel 3y ago
Are you talking about HMC or something different? Serial interfaces have their own problems, HBM usually makes more sense.