In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 780 are significantly better than the AMD Radeon R7 250X Crossfire.

The R7 250X has a 87 MHz higher core clock speed than the GeForce GTX 780, but the GeForce GTX 780 has 112 more Texture Mapping Units than the R7 250X. As a result, the GeForce GTX 780 exhibits a 89.7 GTexel/s better Texture Fill Rate than the R7 250X. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R7 250X has a 87 MHz higher core clock speed than the GeForce GTX 780, but the GeForce GTX 780 has 16 more Render Output Units than the R7 250X. As a result, the GeForce GTX 780 exhibits a 11 GPixel/s better Pixel Fill Rate than the R7 250X. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R7 250X was released less than a year after the GeForce GTX 780, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The R7 250X has 1024 MB more video memory than the GeForce GTX 780, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the GeForce GTX 780 has superior memory performance.

The GeForce GTX 780 has 144.4 GB/sec greater memory bandwidth than the R7 250X, which means that the memory performance of the GeForce GTX 780 is massively better than the R7 250X.

The Radeon R7 250X Crossfire has 1280 Shader Processing Units and the GeForce GTX 780 has 2304. However, the actual shader performance of the R7 250X is 1034 and the actual shader performance of the GeForce GTX 780 is 2078. The GeForce GTX 780 having 1044 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 780 delivers a massively smoother and more efficient experience when processing graphical data than the R7 250X.

The Radeon R7 250X Crossfire requires 160 Watts to run and the GeForce GTX 780 requires 250 Watts. We would recommend a PSU with at least 450 Watts for the R7 250X and a PSU with at least 600 Watts for the GeForce GTX 780. The GeForce GTX 780 requires 90 Watts more than the R7 250X to run. The difference is significant enough that the GeForce GTX 780 may have an adverse affect on your yearly electricity bills in comparison to the R7 250X.