In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 970 MSI Armor 2X OC 4GB Edition are massively better than the Nvidia GeForce GT 940 2GB.

The GT 940 has no core clock speed set, so any comparison between Texture and Pixel Fill Rates is not currently possible.

The GT 940 was released over a year more recently than the GTX 970, and so the GT 940 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 970.

The GTX 970 has 2048 MB more video memory than the GT 940, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 970 also has superior memory performance overall.

The GTX 970 has 144.4 GB/sec greater memory bandwidth than the GT 940, which means that the memory performance of the GTX 970 is massively better than the GT 940.

The GeForce GTX 970 MSI Armor 2X OC 4GB Edition has 1664 Shader Processing Units and the GeForce GT 940 2GB has 512. However, the actual shader performance of the GTX 970 is 2788 and the actual shader performance of the GT 940 is 0. The GTX 970 having 2788 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 970 delivers a massively smoother and more efficient experience when processing graphical data than the GT 940.

The GeForce GTX 970 MSI Armor 2X OC 4GB Edition requires 148 Watts to run and the GeForce GT 940 2GB requires 60 Watts. We would recommend a PSU with at least 500 Watts for the GTX 970 and a PSU with at least 300 Watts for the GT 940. The GTX 970 requires 88 Watts more than the GT 940 to run. The difference is significant enough that the GTX 970 may have an adverse affect on your yearly electricity bills in comparison to the GT 940.