In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 750 EVGA Superclocked 1GB Edition are significantly better than the Nvidia GeForce GT 740 v2 Asus OC 1GB Edition.

The GTX 750 has a 182 MHz higher core clock speed and the same number of Texture Mapping Units as the GT 740. This results in the GTX 750 providing 5.8 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 750 has a 182 MHz higher core clock speed than the GT 740 and the same number of Render Output Units. This results in the GTX 750 providing 2.9 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GT 740 was released less than a year after the GTX 750, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GT 740 v2 Asus OC 1GB Edition and the GeForce GTX 750 EVGA Superclocked 1GB Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 750 has 0.2 GB/sec greater memory bandwidth than the GT 740, which means that the memory performance of the GTX 750 is marginally better than the GT 740.

The GeForce GT 740 v2 Asus OC 1GB Edition has 384 Shader Processing Units and the GeForce GTX 750 EVGA Superclocked 1GB Edition has 512. However, the actual shader performance of the GT 740 is 397 and the actual shader performance of the GTX 750 is 894. The GTX 750 having 497 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 750 delivers a noticeably smoother and more efficient experience when processing graphical data than the GT 740.

The GeForce GT 740 v2 Asus OC 1GB Edition requires 64 Watts to run and the GeForce GTX 750 EVGA Superclocked 1GB Edition requires 55 Watts. We would recommend a PSU with at least 400 Watts for the GT 740 and a PSU with at least 300 Watts for the GTX 750. The GT 740 requires 9 Watts more than the GTX 750 to run. The difference is not significant enough for the GT 740 to have a noticeably larger impact on your yearly electricity bills than the GTX 750.