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Forza Motorsport 7 in Prague - R9 390X stuttering fixed

Radeon Software Adrenalin Edition 18.3.3 release notes lists under the fixed issues section that Forza Motorsport 7 stuttering during gameplay has been resolved. At the end of the last year in a 3-way dGPU shootout the R9 390X fared pretty well against the GTX 1060 and RX 580, but it exhibited huge stutter pikes. To check out whether those spikes are gone, the same race is rerun with the very same settings - this time with Radeon Adrenalin 18.3.4.

As you can see from the frame time graph the spikes are gone!