Accuracy against time, one point per published measurement, every number taken from the paper that measured it — hover for the backbone, the test resolution, the card it was timed on and the citation. Two chips hold one card each; the third puts both cards on one axis, which is what the field usually does. Before you press it, decide what a 22 ms Titan X number and a 64 ms M40 number can honestly be said to have in common.