The basic architecture still matters. GPUs still lose throughput upon divergence regardless of their increased ability to run more kinds of divergent flows corr

The basic architecture still matters. GPUs still lose throughput upon divergence regardless of their increased ability to run more kinds of divergent flows correctly due to having separate PCs, and SIMD still has more trouble with instruction latency (including due to bank conflict resolution in scatter/gather) than barrel threaded machines, etc. This is not to detract from the importance of the improvements to the base architecture made over time