… Balancing CPU and GPU Bandwidth Demands Sharing a memory controller across the CPU and GPU comes with advantages, like making zero-copy behavior more natural to pull off. But it comes with challenges too. CPU and GPU memory requests can contend with each other for DRAM access. …
… Cache Bandwidth and Probes Setting the VK MEMORY PROPERTY HOST COHERENT BIT means writes can be made visible between the CPU and GPU without explicit cache flush and invalidate commands. …
… Write bandwidth on Strix Halo is somewhat lower at approximately 700 GB/s. Write behavior on both iGPUs is similar to that of larger discrete GPUs . L1 and Shared Memory Capacity Nvidia’s GPUs use a single block of SM-private memory for both L1 cache and Shared Memory. …