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Need some advice please

The recommended 3GB is probably based on the use of Ultra settings and 4xAA. Worst come to worst, I think people with 2GB cards just need to turn down the AA settings at they'd be fine.
 
3t3P said:
The alienware site incorrectly specs the 690 upgrade option as a 4GB card
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Te GTX690 is a 4GB card, in as far as it has 4GB do RAM on board, however, owing to the way that SLI works each GPU has 2GB to use and the data stored in each 2GB is essentially identical.
 
Havana_UK said:
Er...no?

You see, a 690 DOES have 4GB of RAM on the board, whereas your i5 doesn't run at 18GHz.
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You are wrong. No matter how many gigabytes there are on a multi GPU board, system only sees 2. Because data in that memory is duplicated for every GPU. Effectively it is 2GB, which is less, than 3GB and for sure less than 4GB.

And you are wrong about the gigaherz. i5 has 18 gigaherz, that can be used for computing, it's just another way of counting. While your 690 has 4GB, but no more than 2GB can be used for storage of textures in your card, other 2 gig are just a copy.
 
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Is it not possible that the fact AMD have their name on BF4 will mean that playing the game on max settings @ 1080p will require more than 2GB, just so people will more likely buy their own cards? I mean I don't know how much input graphics card companies have in games and their requirements, and it would be a bit of an underhand tactic to gain sales, but could this realistically happen!?
 
sand_dune said:
You are wrong. No matter how many gigabytes there are on a multi GPU board, system only sees 2. Because data in that memory is duplicated for every GPU. Effectively it is 2GB, which is less, than 3GB and for sure less than 4GB.

And you are wrong about the gigaherz. i5 has 18 gigaherz, that can be used for computing, it's just another way of counting. While your 690 has 4GB, but no more than 2GB can be used for storage of textures in your card, other 2 gig are just a copy.
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OK
 
sand_dune said:
i5 has 18 gigaherz, that can be used for computing, it's just another way of counting.
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Did you really just do the math for a cpu like that?
 
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