In terms of overall gaming performance, the graphical capabilities of the AMD Radeon X1900 XT are marginally better than the Nvidia GeForce GT 730 v3 Gigabyte 2GB Edition.

The GT 730 was released over three years more recently than the Radeon X1900 XT, and so the GT 730 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Radeon X1900 XT when running the latest games.

The GT 730 has 1792 MB more video memory than the Radeon X1900 XT, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The Radeon X1900 XT has 17.6 GB/sec greater memory bandwidth than the GT 730, which means that the memory performance of the Radeon X1900 XT is slightly better than the GT 730.

The GeForce GT 730 v3 Gigabyte 2GB Edition has 96 Shader Processing Units and the Radeon X1900 XT has 48. However, the actual shader performance of the GT 730 is 134 and the actual shader performance of the Radeon X1900 XT is 20. The GT 730 having 114 better shader performance is not particularly notable, as altogether the Radeon X1900 XT performs better when taking into account other relevant data.

The GeForce GT 730 v3 Gigabyte 2GB Edition requires 49 Watts to run and the Radeon X1900 XT requires 100 Watts. We would recommend a PSU with at least 300 Watts for the GT 730. The Radeon X1900 XT requires 51 Watts more than the GT 730 to run. The difference is significant enough that the Radeon X1900 XT may have an adverse affect on your yearly electricity bills in comparison to the GT 730.