Thanks for the info. The tl;dr is "It's fantastic to see that I've been able to use a machine that costs 1/10th of the one used in the 8 x Tesla K80s benchmark

Thanks for the info. The tl;dr is "It's fantastic to see that I've been able to use a machine that costs 1/10th of the one used in the 8 x Tesla K80s benchmark but still have queries running within 33% of the previous performances witnessed." However, I'm suspicious of the numbers in those articles since the author lists only 4 data points in each trial and doesn't mention the stdev in his measurements. One of his measurements was .964 vs .891 so it looks like the Titan Xs were 90% as fast as K80s if the numbers can be trusted.