It's a typo for the GTX970 which has been exposed for over a year now regarding the 3.5gb vram optimal limit of the card advertised at 4gb.
http://www.anandtech.com/show/10532/nvidia-proposed-geforce-gtx-970-class-action-settlementI will just say to nVidia -- Don't Do That Again
They are paying 1.3 million to the (opposing) attorney fees and $30 each for those 970 owners filing a claim.
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