NVIDIA GeForce GTX 680 vs GTX TITAN

Incorporating many more Raster Operations Pipelines (ROPs) helps the GeForce GTX TITAN GPU to offer better pixel fill rate, even though it has lower graphics frequency. Having higher pixel fillrate allows the card 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 its graphics clock rate is slower, the GeForce GTX TITAN comes with many more TMUs, resulting in better texture fill rate. Having better texture fill rate allows the graphics card to map more textures and/or use more complex 3D effects for each textured picture element, which improves games visual appearance.

Maximum Single Precision performance illustrates how many single-precision floating point operations the GPU can execute per second. This performance is expressed in billions of Floating Point Operations Per Second, or GFLOPS. 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 NVIDIA GeForce GTX TITAN is faster here. Higher single-precision performance number means the graphics card will perform better in general computing applications. Since stream processors or CUDA cores are also used as vertex and geometry shaders for 3D image generation, higher performance is also beneficial to games.

To speed up processing, the cards store 3D scene data, textures and intermediate data, used for image generation, in on-board memory. The video memory usually has much higher bandwidth than system RAM, and more bandwidth allows the GPU to run at higher screen resolutions, use larger and more detailed textures, and apply more complex 3D effects and filters. The bandwidth depends on memory type, speed, and memory interface width. Specifically, higher memory bandwidth of the GeForce GTX TITAN graphics card is a result of wider memory bus.