In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 720M are very slightly better than the Nvidia GeForce GT 630M.
The GeForce GT 630M has a 35 MHz higher core clock speed and the same number of Texture Mapping Units as the GeForce GT 720M. This results in the GeForce GT 630M providing 0.6 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 GeForce GT 630M has a 35 MHz higher core clock speed than the GeForce GT 720M, but the GeForce GT 720M has 4 more Render Output Units than the GeForce GT 630M. As a result, the GeForce GT 720M exhibits a 2.4 GPixel/s better Pixel Fill Rate than the GeForce GT 630M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.
The GeForce GT 720M was released over a year more recently than the GeForce GT 630M, and so the GeForce GT 720M is likely to have better driver support, meaning it will be more optimized for running the latest games.
The GeForce GT 720M and the GeForce GT 630M have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.
The GeForce GT 630M has 14.4 GB/sec greater memory bandwidth than the GeForce GT 720M, which means that the memory performance of the GeForce GT 630M is slightly better than the GeForce GT 720M.
Both the GeForce GT 720M and the GeForce GT 630M have 96 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the . Knowing that the shader performance of the GeForce GT 720M is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.
The GeForce GT 720M transistor size technology is 12 nm (nanometers) smaller than the GeForce GT 630M. This means that the GeForce GT 720M is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GT 630M. As they exhibit similar graphical performance, the GeForce GT 720M should consume less power than the GeForce GT 630M.
The GeForce GT 720M requires 33 Watts to run and the GeForce GT 630M requires 33 Watts. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.