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Leaked Diagrams Outline AMD’s RDNA 5/‘UDNA’ GPU Stack With 96-CU Flagship and 512-Bit Bus

Plausible but unconfirmed forum posts point to a four-die family, a revised CU definition, and cache changes drawn from datacenter designs ahead of expected 2026 production.

This new AMD Radeon gaming GPU leak looks amazing, could beat the RTX 6080
An image about AMD's next-gen RDNA 5 flagship gaming GPU pictured, 96 Compute Units, 512-bit memory bus
Image

Overview

  • Block diagrams shared by leaker Kepler_L2 depict four next-gen AMD GPUs with 96, 40, 24 and 12 compute units.
  • The top die is shown with eight shader arrays, 16 shader engines and 16 unified 32-bit memory controllers for a potential 512-bit interface, with coverage noting up to 128 MB of Infinity Cache.
  • The 40‑CU design is pictured with six memory controllers implying a 192‑bit bus, while the 24‑CU and 12‑CU dies show eight and four controllers respectively, with some reports suggesting LPDDR5X for lower tiers.
  • Outlets reconcile earlier 192‑CU rumors by reporting a shift in AMD’s counting such that one new CU roughly corresponds to a previous‑gen WGP, making 96 “new” CUs akin to 192 by the old measure.
  • Reporting frames all specifications as leak-driven and subject to change, with mass production expected around Q2 2026 and talk of AMD preparing a genuine high-end option to challenge Nvidia remaining speculative.