When NVIDIA launched the GeForce GTX 960 there were two models available, a version with 2GB VRAM and a version with 4GB of VRAM. This gave users the ability to choose which one to get based on their needs. Well it looks like NVIDIA will be dropping the 2GB model. The reason for this is so users will only see the 4GB version of the card, which competes better with the AMD Radeon R9 380.
The GeForce GTX 960 is based off the GM206 GPU, which is NVIDIA’s budget Maxwell die. While the GTX 960 does compete with the AMD Radeon R9 380, it does fall short in terms of overall performance. With NVIDIA also launching the GTX 950 it sort of puts the GTX 960 2GB in a weird spot. So we can see why NVIDIA would want to phase out the card.
Source: HardwareBattle | News Archive