# GDDR7 Four-Channel Interleaving Architecture > Source-anchored research for GDDR7 Four-Channel Interleaving Architecture. Run status: COMPLETED. Parent: [16-Bit Sub-Channel Bursts and Non-Sequential Tensor Bank Interleaving](https://llms-explorer.com/tree/subchannel-bursts-and-bank-interleaving/) · 2 facets · 2 facts · page: https://llms-explorer.com/tree/gddr7-four-channel-interleaving-architecture/ ## How it works - Each 16-bit sub-channel commands its own bank cycle timing (tRC, tRP, tRCD), allowing concurrent row activations across independent bank groups. (high confidence) — [source](https://www.jedec.org/standards-documents/docs/jesd239) ## Facts and statements - A standard 256-bit GDDR7 interface provides 16 pseudo-independent 16-bit sub-channels across four 64-bit physical memory controllers. (high confidence) — [source](https://www.jedec.org/standards-documents/docs/jesd239)