Pure speculation until I see actual benchmarks. Benchmarks are very easy too. Most of us have a copy of Norton Utilities, which includes a benchmarking program. There were also other popular benchmarking apps for 68k Macs.
If I had a flash disk solution in my hands right now, I would do the benchmark comparisons and post them for all of us. But I don't have that so I appeal to those of you who do. Cut the speculation and put down some facts. Benchmark numbers speak louder that our "guesses."