Up until very recently, I've played BF4 with only 2x msaa and a mixture of high & ultra settings. With these settings, Afterburner shows my vram usage tops out at around 1520MB in Metro. Perfect for my 1536MB 580. The other week, I decided to revisit BF4's settings and have another play. To my surprise, even with everything set to Ultra and with 4x msaa, the maximum vram usage hasn't increased at all. Now, I'm not complaining but does anyone have any idea what's going on?