A frame rate test comparing the performance of Trackmania Turbo running on the PS4 and the PS4 Pro. The native resolution of Trackmania Turbo is 1920×1080 on the PS4. The PS4 Pro version uses a dynamic resolution with 2024×1139 being the lowest pixel count found and 2880×1620 being the highest pixel count found.
The PS4 Pro version in 1080p mode downsamples this resolution to 1920×1080. This can be seen here (http://imgur.com/a/02rrv) which contains similar screenshots of the ps4, ps4 pro in 1080p and the ps4 pro in 1080p after starting in 4k. The version tested for both the PS4 and PS4 Pro was 1.02.
The performance shown on the PS4 during the clip starting at 2:32 is not representative of the general performance on PS4. Both versions can experience frame time spikes at the start of a race (http://imgur.com/a/lPcsl).
Source: VG Tech