1 Question

Why this game use less than 1.5GB vram?

no matter if the graphic card have 2GB or 3GB.. there is no performance difference :S

what is the point to buy a video card with 2GB or 3GB ? O_o

even battlefield 3 in ultra cant reach 2GB..

Max c3 used on mine card was 2.41 GB

Texture packs and high resolutions :3

It's called future proofing, Oh and being able to run rediculously high-res textures.

1 Question

Why this game use less than 1.5GB vram?

no matter if the graphic card have 2GB or 3GB.. there is no performance difference :S

what is the point to buy a video card with 2GB or 3GB ? O_o

even battlefield 3 in ultra cant reach 2GB..

At what resolution and settings are you playing?

Biggest factors:
1) Resolution
2) Texture depth/detail (i.e. graphics settings or mods)

At 1920x1080 at "Very High" C3 can gobble-up 1.5-2GB easily.
At 2560x1440 or 2560x1600 at "Very High" it can cross 2GB.
At 3840x2160 or 4096x2160 (4K) at "Very High" it can break 2.5-3GB.
At 5760x1080 (triple-1080p) at "Very High" it is possible to see 3-3.5GB+.

Regarding BF3, it is a actually a fairly light game (graphics-wise) compared to more taxing games like Crysis 3 and Metro 2033/Last Light, the level of texture depth and detail even on Ultra isn't all that mind-blowing. In fact the visual differences between Medium and Ultra is so subtle that a lot of people don't even bother with Ultra. It was a game designed to appeal to large masses while still having the ability to scale and tax high-end cards.

Skyrim in particular is notorious for having people install so many freaking graphics mods that it breaks all vRAM records, I'm talking 2.5GB+ at only 1080p!

The reason cards are loaded with so much vRAM these days is because firstly it is cheap to pile vRAM chips onto the PCB, secondly it greatly helps to market the card for those who like to see big numbers (no, seriously) and thirdly because the moment a game finishes the vRAM on a card it will start to use system memory (regular RAM) to keep going...but that memory is a hell of a lot slower and you may start to see the game stutter (or even crash).
It's easy to avoid any possibility of running out of vRAM with...well, plenty of vRAM

Max c3 used on mine card was 2.41 GB


I've run out of vram in Single player with 3gb vram cards. In Single player there is also a lot of texture caching that can improve performance. Of course higher resolutions use higher vram.

1920x1080 here

Biggest factors:
1) Resolution
2) Texture depth/detail (i.e. graphics settings or mods)

At 1920x1080 at "Very High" C3 can gobble-up 1.5-2GB easily.
At 2560x1440 or 2560x1600 at "Very High" it can cross 2GB.
At 3840x2160 or 4096x2160 (4K) at "Very High" it can break 2.5-3GB.
At 5760x1080 (triple-1080p) at "Very High" it is possible to see 3-3.5GB+.
heh how much vram would u need for 3x or 6x quad hd?
11520x2160 (3x 2160p) at ultra, max aa = ~7.5-10gb?
11520x6480 (6x 2160p) at ultra, max aa = ~15-20gb? lolol

It tapers off because even though the resolution is super high, the amount of STUFF on each monitor is a lot less compared to a single monitor setup. The camera and field of view doesn't exactly show you the whole world, you're just going to see everything get a lot bigger and spread across the monitors which means a far less complexity on each monitor. Plus there is a limit to how sharp textures can get, if the developer (or modder) only put in textures up to a certain max resolution then in order to get bigger than that the texture will just get stretched.

AMD's HD5970 (dual GPU monster) could comfortably do 6-monitor EyeFinity with only 2GB vRAM (5760x2160), heck even a single 5870 could do it with only 1GB lol if you lowered settings enough. And this was back in 2009.
To run 6-monitor now you'd probably need at least ~3GB+ with a game from the Crysis series. I haven't seen anyone run 6-monitor with 2500x1600 screens, that would be pretty crazy