ASUS GeForce GT 1030 2GB vs GT 640

Because it has twice as many Raster Operations Pipelines (ROPs), the GeForce GT 640 card provides higher pixel fill rate, even though its graphics frequency is lower. Having better pixel fillrate allows the GPU to draw more pixels on screen and off screen, which is beneficial for some 3D effects in games, or when playing at higher display resolutions.

Although the ASUS GeForce GT 1030 2GB has fewer TMUs (Texture Mapping Units), it runs at substantially higher rate, which means its texture fillrate is higher. Better texture fill rate allows the card to use more complex 3D effects and/or map more textures to each texel, which improves games visual appearance.

Maximum Single Precision performance illustrates how good the graphics card is at executing applications, that process only single-precision floating point data. This performance is expressed in GFLOPS or billions of Floating Point Operations Per Second. Generally, the faster CUDA cores or stream processors operate at, and the more cores / processors the graphics card has, the higher Single Precision performance will be. The ASUS GeForce GT 1030 2GB is significantly faster here. Higher single-precision performance number means the GPU will perform better in general computing applications. Since CUDA cores or stream processors are also used as vertex and geometry shaders for 3D image generation, higher performance is also beneficial to games.

Memory bandwidth parameter specifies how much memory (in Gigabytes) the graphics card can read from or write to dedicated memory per second. Graphics cards with higher memory bandwidth have better performance at high display resolutions, or when using large and detailed textures, and/or utilizing complex 3D effects and filters, like anti-aliasing. The bandwidth depends on memory type, speed, and width of memory interface. Specifically, the ASUS GeForce GT 1030 2GB comes with better and higher clocked memory. As a result, it has substantially higher memory bandwidth.