Compare any two graphics cards:
GeForce GTX 650 Ti vs Radeon HD 7870
IntroThe GeForce GTX 650 Ti makes use of a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 memory runs at a frequency of 1350 MHz on this model. It features 768 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.
Compare that to the Radeon HD 7870, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1200 MHz. It also features a 256-bit bus, and makes use of a 28 nm design. It is made up of 1280 SPUs, 80 TAUs, and 32 ROPs.
(No game benchmarks for this combination yet.)
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
Theoretically, the Radeon HD 7870 should be a lot faster than the GeForce GTX 650 Ti in general. (explain)
Texel RateThe Radeon HD 7870 will be much (about 35%) faster with regards to texture filtering than the GeForce GTX 650 Ti. (explain)
Pixel RateThe Radeon HD 7870 will be much (approximately 116%) faster with regards to anti-aliasing than the GeForce GTX 650 Ti, and also will be able to handle higher screen resolutions better. (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.
Price ComparisonPlease note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.
Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.