There are a lot of similarities, but the granularity is finer. The idea is that you make a decision to launch one workgroup (typically 1024 threads) when the input is available, which would typically be driven by queues, and potentially with joins as well, which is something the new work graph stuff can't quite do. Otherwise the idea of stages running in parallel, connected by queues, is similar. But I did an analysis of work graphs and came to the conclusion that it wouldn't help with the Vello (2d vector graphics) workload at all.