4 ms·

Why Apple packs something like 64 Gb on the CPU chip and NVIDIA cannot?

• bryanlarsen 2y ago
  Apple uses LPDDR4 which comes in densities of up to 16Gb AFAICT. So they can have ~5X as much memory using the same bus width.
  • nhubbard 2y ago
    Apple uses LPDDR5X, not LPDDR4, iirc
    • xxs 2y ago
      Of course it's ddr5 not 4.
      • IndrekR 2y ago
        From PCB perspective, LPDDR5(X) interface is quite different from regular DDR5. Same with DDR4 and LPDDR4. Source: have designed few boards with different memory interfaces.
• wmf 2y ago
  LPDDR dies can stack but GDDR cannot?