Forza Horizon 4 PC Performance Review

Dynamic Optimisations - Does it work?

Forza Horizon 4 PC Performance Review

Dynamic Optimisations - Does it work?  

Perhaps the most noteworthy addition to many modern console games is the idea of dynamic optimisation, with games changing their resolution or graphical settings depending on recorded frametimes. Is the game performing too close to its framerate target, or dipping below it? Why not allow your game to adjust some graphical options or reduce the game's internal resolution to mitigate these small dips? This design change has allowed developers to push games further in areas that offer plenty of performance headroom while maintaining fairly stable performance in taxing locations.   

Moving these options to PC has always been an appealing option, as while playing a game with a constant resolution and fixed in-game settings is nice, it is nicer to be able to play a game without feating massive performance dips and spikes. Wouldn't it be better if your games could optimise themselves on the fly? At a minimum it will save some users time, the time typically spent on manual graphical settings adjustment.   

Forza Horizon 4 offers PC gamers a Dynamic Optimisation option, which is designed to adjust the game's graphical settings on the fly to deliver enhanced performance levels. 

Sadly, this option doesn't seem to work, at least in a noticeable way. We tested this feature using an RX Vega 56 at 4K, both with an unlocked framerate and with a defined 60FPS framerate target. No matter what we tried, we never got Forza's Dynamic graphical settings to work as expected, with the setting providing performance changes that are unnoticeable in practice. Perhaps Playground Games can address this with a future patch. 
  

Forza Horizon 4 PC Performance Review  

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Most Recent Comments

05-10-2018, 16:45:39

Greenback
Considering 1080p is my best (poor eye sight) I'm well impressed at how well it runs on Ultra, and I do like the Forza Horizon gamesQuote

06-10-2018, 03:30:11

Dicehunter
Vega 64 only 1.6FPS behind a 1080 Ti at 1440P, Impressive.Quote

06-10-2018, 05:48:32

WYP
Quote:
Originally Posted by Dicehunter View Post
Vega 64 only 1.6FPS behind a 1080 Ti at 1440P, Impressive.
Yeah, Forza is a great showing on Radeon's Vega graphics cards. It's well strange that the RX 580 and GTX 1060 are level pegging, but the Vega 64 demolishes the GTX 1080.

Anyway guys, all feedback is appreciated here. Feel welcome to post criticism, especially for the video, as it is our first time doing that.Quote

06-10-2018, 11:21:13

AngryGoldfish
Wow, that is the first time I've ever seen Vega match a 1080Ti in gaming. Even games that favour Vega specifically like Far Cry 5 and Wolfenstein II don't show Vega being on par with the 1080Ti; it was always still slightly behind, at least from what I've seen and remember. Very impressive.

Also, OC3D's video game analysis articles are one of the only places I know of that shows performance scaling with different in-game settings. There's nothing worse than seeing a graph for a game where a GTX 1080 or Vega 64 can't hit 60 FPS at 1440p in a new game at max settings but easily hits 80 FPS with just a couple of superfluous settings turned down or off. So thanks very much for the extra work.

On a similar note, what I think could be the best way to test a game is to have target FPS points. So for instance you'd have a GTX 1050/RX 460, GTX 1060/RX 580 and GTX 1080/Vega 64 comparison, and you'd show what the graphics settings would need to be in order to hit 60, 90 or 120 FPS, maybe with screenshot comparisons as you guys already do. So if I had a GTX 1060, I'd know that in AC Odyssey I'd have to use FXAA and High shadows in order to hit 60 FPS at 1080p, or I'd have to turn off a couple of other things to hit 90 FPS. The same thing for the other cards. It would take a lot of work and may not be possible for most, but it would be the best way to do things in my opinion. I always appreciated Nvidia's breakdown of AAA games and their graphics settings. It basically meant that if I had for example a GTX 970 and still wanted to hit 60 FPS at 1080p, I'd know that either I'd need to upgrade my graphics card, or how far I'd have to reduce the in-game settings to hit that point, or whether that was something I was willing to do.

Again, excellent work, Mark and all those involved.Quote

06-10-2018, 11:22:23

Offitmassive
Look at the vega 56 compared to 1080 too!Quote
Reply
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