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Leak Points to LPDDR6 in AMD’s Medusa Halo APUs, Promising a Big Bandwidth Leap

Reported LPDDR6 support would lift shared memory throughput crucial for integrated graphics as well as AI inference.

Overview

  • A leak from Olrak29_ suggests the Ryzen AI MAX 500 “Medusa HaloSoCs will adopt LPDDR6, with reporting anchored to JEDEC’s 14,400 MT/s spec and 38.4 GB/s per module.
  • Using JEDEC figures on a presumed 256-bit bus, journalists estimate up to 460.8 GB/s of bandwidth, roughly an 80% increase over current Strix Halo.
  • Prior rumors of a widened 384-bit controller would push projected throughput to about 691.2 GB/s, though AMD has not confirmed any bus width.
  • Current Halo parts ship with LPDDR5X-8000 at about 256 GB/s, with a reported Gorgon Halo refresh targeting 8,533 MT/s for roughly 273.1 GB/s.
  • Coverage places Medusa Halo in the 2027–2028 window with Zen 6 CPUs and RDNA 5 GPUs, while noting AMD has not officially detailed the lineup or memory configuration; rivals include Intel’s LPDDR5X-9600 Panther Lake and Apple’s 819 GB/s M3 Ultra.