how does this work

[ExcitezR]

so i no crossfire and sli that memory does not stack so how does this work i have 3 GB of Vram and i was playing BF4 over 3 screens ultra settings and 150% scaling ... yea thats nearly 5GB of Vram used 

 

[PhantomChevron]

You broke the universe 

[ExcitezR]

You broke the universe 

that is what i thought 

[PhantomChevron]

I think you should download more VRAM

[MellowCream]

 

When and if you happen run out of video memory, then your PC will have to constantly jerk textures between main memory and video memory, which causes massive slowdowns, generally to unplayable levels.

 

Some of the PC's RAM is being used.



 

[faftek]

Well you see whenever we use big terms like OFDM(orthogonal frequency division multiplexing), CSMA/CA(carrier sense multiple access / collision avoidance), then we just confuse you. Once we do that we add 1+1 to get fish. We then convert fish to binary, resulting in 1100000000000. We then convert that back to binary and get 6144. That is the amount of megabytes you have in total. Even though each card only has 3GB, the fish are helping you.

 

On a serious note each graphics card stores the EXACT same data on the ram at the EXACT same time, so it still uses 6GB of vram, but only 3GB of that is usable. Graphics cards grabbing from each other would be way too slow and take up too much time, causing MASSIVE frame lag, so that program probably doesn't take into account that it's in crossfire, and each card is using about 2491.5MB of vram(granted it's the exact same data on both of them.

[terrytek]

Well you see whenever we use big terms like OFDM(orthogonal frequency division multiplexing), CSMA/CA(carrier sense multiple access / collision avoidance), then we just confuse you. Once we do that we add 1+1 to get fish. We then convert fish to binary, resulting in 1100000000000. We then convert that back to binary and get 6144. That is the amount of megabytes you have in total. Even though each card only has 3GB, the fish are helping you.

 

On a serious note each graphics card stores the EXACT same data on the ram at the EXACT same time, so it still uses 6GB of vram, but only 3GB of that is usable. Graphics cards grabbing from each other would be way too slow and take up too much time, causing MASSIVE frame lag, so that program probably doesn't take into account that it's in crossfire, and each card is using about 2491.5MB of vram(granted it's the exact same data on both of them.

DAFUQ?? I can't absorb this.

[faftek]

DAFUQ?? I can't absorb this.

OFDM is a big part of new wireless, it's used to use multiple wireless channels at once to increase speed. CSMA is another wireless standard, ignore the binary part that's just me having fun.

 

Ok so crossfire and SLI basicly work where each GPU processes an alternate frame. To do this each GPU has to have the same data in their vram. So this program probably doesn't realize that the data in the vram of each card is the exact same data and adds them both together.

[flibberdipper]

Probably using the system's RAM as an overflow.