I think NVIDIA really bungled the GTX 970 release with the memory issues. Basically what their engineers did was they lowered one of the cache sizes so that only 3.5GB of VRAM on the GTX 970 can be used at full speed. The other 0.5GB is limited by the lack of a cache for it. While this doesn't affect most current games that work at 1080p, the effect can be slightly noticeable when gaming at 4k, or when playing games that load extremely large textures. Wonder what you guys think about this? Anyone returned their GTX 970 because of this?