BF4 Eyefinity Memory Usage

foxtrot779

Honorable
Nov 28, 2013
13
0
10,510
Bf4 uses an insane amount of my system's memory. I have 8 gb of RAM as well as 3 gb of vram on my 2 7970 running an eyefinity setup at 5948 x 1080. I see pagefile usage of 11+ GB, 5+ GB of RAM usage, and 3+ (sometimes 4+ GB) GB of vRAM usage in BF4. What the hell is going on? I have all anti aliasing turned off, texture filtering, and ambient occlusion. Hell, I even set all graphics to "low" and I still had 3+ GB of Vram usage. What is going on?

An interesting note, however, is that I do not get FPS drops (at least not FPS drops that I should be getting from my Vram filling up). I get 60 fps and high 40s to mid 50s on average when there are graphic intensive scenes on my monitors.

I would just like to know if I am doing something wrong? I mean that is almost 20 GB of memory being used for bf4! I can't even turn off my paging file because BF4 won't even run and both the game and my graphics driver will crash, resulting in a DirectX error.
 

foxtrot779

Honorable
Nov 28, 2013
13
0
10,510


I did a bit more digging around on some other forums and found that (according to some people) monitoring software like GPU-z and MSI afterburner tend to to show the vram usage across both cards as an added number. So then you have to divide the vram usage by the number of cards in your system. In my case, if I was using 4500 MB of vram, I would be using about 2250 from each card. This explanation just does not make sense when it comes to the known fact that vram does not stack or add in crossfire or SLI. Perhaps, like you said, it is just the way the software views since there is no real way to measure exact vram usage at any given time.