Forza Horizon 4 PC Performance Review

VRAM Usage - This game likes having lots of VRAM!

Forza Horizon 4 PC Performance Review

VRAM Usage - This game likes having lots of VRAM!

Microsoft's Xbox One X console was designed for resolutions beyond 1080p, with one of the console's key upgrades being the addition of 4GB of additional VRAM. This extension to the console's frame buffer that has allowed Microsoft's first party developers to release games with high-resolution texture packs, allowing Xbox One X enhanced games to look a lot better than their console counterparts.  

Now how does this impact PC? These same Xbox One X-oriented high-resolution textures will also appear within modern PC titles, with the X-series console giving developers more an more reason to utilise plenty of VRAM within their games, making many modern PC titles VRAM hogs. Long gone are the days where 2GB of VRAM is enough for today's PC games with maxed  out textures. 

Below is a table which should show you how VRAM usage scales with Forza Horizon 4's graphical settings, fulling the GTX 1060's frame buffer when w used the game's maximum settings. These VRAM measurements are maximum values that are taken from five minutes of gameplay, which includes driving in Forza Horizon's overworld and racing in the Autumn rally season. Forza Horizon 4's in-game benchmark typically uses less VRAM than this testing scenario.  

Forza Horizon 4 PC Performance Review

Below we have also included some data which should show how VRAM usage scales with resolution, with 1080p Ultra settings being able to fill more than 4GB of VRAM, while 4K Ultra can occupy more than 6GB of VRAM. Forza Horizon 4 will have no trouble making use of your system's VRAM, though it remains a long way off filling graphics cards like the GTX 1080 Ti or RTX 2080 Ti. 

Forza Horizon 4 PC Performance Review  

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Most Recent Comments

05-10-2018, 16:45:39

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

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

06-10-2018, 05:48:32

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

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

Look at the vega 56 compared to 1080 too!Quote

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