CK Tile

AMD introduced VSA (Video Sparse Attention), a hardware-efficient sparse attention mechanism implemented with CK Tile, achieving a 3.31× attention kernel-time speedup at 70% sparsity over FlashAttenti…

AMD's ROCm blog explains that choosing the right attention algorithm in ComfyUI can significantly impact performance, memory usage, and stability on AMD GPUs, with PyTorch SDPA recommended as the safe…