The time has almost come for Nvidia to pay the piper, and you’re the piper, provided you live in the U.S. and purchased a GeForce GTX 970 graphics card sometime between September 1, 2014 and August 24, 2016. If so, you’re entitled to a $30 refund per card as part of a proposed settlement agreement.
This all has to do with the way Nvidia implemented 4GB of GDDR5 memory on the GeForce GTX 970 and its unique memory crossbar configuration. As designed, one of the card’s ROP/L2 partitions was disabled, which gave the card 56 ROPs rather than 64. It also meant that a 512MB segment of the onboard memory was significantly slower than the remaining 3.5GB.