I don't think so, if you're just doing a staight batch job with no sorting, iterative processing, etc, then they'll probably be a very similar speed. If you ha

I don't think so, if you're just doing a staight batch job with no sorting, iterative processing, etc, then they'll probably be a very similar speed. If you have to sort one of the datasets first, then Spark will likely be faster, but it all depends on a ton of factors that are task specific.