Breaking the Hardware Barrier: Software FP8 for Older GPUs

Feather introduces a software-based FP8 emulation technique that enables older RTX 30 and 20 series GPUs to overcome memory bandwidth limitations in deep learning workloads. By employing bitwise packing to emulate FP8 precision, this approach achieves nearly fourfold (3.3x measured) improvements in data transfer efficiency, effectively mitigating the memory bottleneck without requiring costly hardware upgrades. This development broadens access to efficient deep learning processing on existing GPU infrastructure, leveraging software solutions to extend hardware longevity and performance.