https://bugs.winehq.org/show_bug.cgi?id=51340
--- Comment #4 from Henri Verbeet hverbeet@gmail.com --- (In reply to François Gouget from comment #3)
With a tolerance of 7 there is no failure anymore, at least on Windows 10 1507 with the 391.35 driver. So if rounding that to 8 is acceptable then the attached patch could fix this issue in both cases.
That's fine.