Compare any two graphics cards:
Nvidia Titan X vs Radeon R9 295X2
IntroThe Nvidia Titan X makes use of a 16 nm design. nVidia has clocked the core frequency at 1417 MHz. The GDDR5X RAM runs at a frequency of 1251 MHz on this model. It features 3584 SPUs as well as 224 Texture Address Units and 96 ROPs.
Compare all that to the Radeon R9 295X2, which has GPU clock speed of 1018 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 Texture Address Units, and 64 Raster Operation Units.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
As far as performance goes, the Radeon R9 295X2 should theoretically be a lot superior to the Nvidia Titan X in general. (explain)
Texel RateThe Radeon R9 295X2 is a little bit (about 13%) more effective at AF than the Nvidia Titan X. (explain)
Pixel RateIf running with high levels of AA is important to you, then the Nvidia Titan X is the winner, though only just barely. (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.
One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.
Nvidia Titan X
Radeon R9 295X2
Memory Bandwidth: Bandwidth is the largest amount of data (measured in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.
Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.
Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.
Nvidia Titan X
Radeon R9 295X2