Have you played FH5 on the PC? Because it has a whole bunch of options these days: MSAA (up to 8x), FXAA, TAA are available if you are not using upscaling. If you use DLSS or FSR then their implementations include antialiasing (the normal AA modes are greyed out).
So you can't turn on "just" DLAA, it comes with DLSS or you use another AA technology.
Personally I have found the following in FH5:
- 8x MSAA is the best at removing jaggies, however it has a weak spot in thin horizontal lines such as on advertising hoardings. I believe they use 4x MSAA on the Xbox Series X in Performance Mode which does a pretty good job.
- DLSS gives me roughly 10% more performance over 4x MSAA (all other settings equal) on my 1440p 165Hz HDR PC monitor. But the cost in FH5 is a slight fuzziness of the big picture (only really notice when stationary) and DLAA instead of MSAA which is better at horizontal lines but crap at diagonal power lines (they look aliased with DLAA but fine with even 4x MSAA).
Also if you look at FM7 on the PC:
- There is no upscaling tech, but even 8x MSAA is surprisingly jaggy. Horizon is definitely better there.
- There's the option to implement "resolution scaling", i.e. to draw a higher resolution than the screen and downscale. I found that 150% scaling with 8x MSAA looks damn near jaggie-free. Really very impressive screen quality. This option does come at a cost, though. Around 35% more GPU performance needed to use 150% scaling over 100% scaling. Probably something for RTX5080 owners to worry about if they use it in FM2023 at 4k
Of course, FM7 on the Xbox was tuned for Xbox One X at 4k and never updated for the Series X, so it is jaggie city even on a Series X. Might even be 2x MSAA looking at the game, or at best a weak 4x MSAA. FH5 on the other hand at 4k in Performance Mode is also 60fps on the Series X console, and the implemented 4x MSAA does a great job there. Jaggies are very limited. But it almost certainly has some kind of dynamic resolution in play to stay at 60fps on the console, but it's not very noticeable under gameplay.
So we have:
- Drawing native resolution with AA tech (I think most FM games got close to this, but probably all Forzas have had some dynamic resolution scaling at times, and all Horizon games)
- Dynamic resolution scaling (Forza has used this heavily in the past and it was available on all PC versions too)
- Upscaling tech (FSR only on consoles, DLSS or FSR on PCs). The tech was first tried in FH5, with a relatively low performance benefit (10% or so). And DLAA was no better than 4x MSAA, just different. We will have to see what it looks like in FM2023.
Now FSR and DLSS were "shoe-horned" into FH5's engine after release, whereas FM2023 will get it at launch. But I still expect:
- For PC players they will offer the choice between AA or upscaling tech, just like they do in FH5
- Probably 4x or 8x MSAA will be the best option again
- If resolution scaling is implemented, I will try 150% scaling and 4x MSAA to get the best image quality on my RTX3070.