Compare any two graphics cards:
GeForce GTX 1060 3GB vs GeForce GTX 580 3GB
IntroThe GeForce GTX 1060 3GB comes with core speeds of 1506 MHz on the GPU, and 2000 MHz on the 3072 MB of GDDR5 memory. It features 1152 SPUs as well as 72 TAUs and 48 Rasterization Operator Units.
Compare that to the GeForce GTX 580 3GB, which uses a 40 nm design. nVidia has set the core speed at 772 MHz. The GDDR5 memory runs at a frequency of 1002 MHz on this card. It features 512 SPUs along with 64 TAUs and 48 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
In theory, the GeForce GTX 1060 3GB should be a small bit faster than the GeForce GTX 580 3GB in general. (explain)
Texel RateThe GeForce GTX 1060 3GB will be a lot (more or less 119%) faster with regards to AF than the GeForce GTX 580 3GB. (explain)
Pixel RateIf running with a high screen resolution is important to you, then the GeForce GTX 1060 3GB is superior to the GeForce GTX 580 3GB, by a large margin. (explain)
Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.
Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.