GeForce GTX 980 Ti vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which has GPU core speed of 1500 MHz, and 20480 MB of GDDR6 RAM set to run at 2500 MHz through a 320-bit bus. It also is made up of 5376 SPUs, 336 Texture Address Units, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 980 Ti		250 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

As far as performance goes, the Radeon RX 7900 XT should theoretically be quite a bit superior to the GeForce GTX 980 Ti overall. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce GTX 980 Ti		336000 MB/sec
	Difference: 483200 (144%)

Texel Rate

The Radeon RX 7900 XT will be a lot (about 186%) faster with regards to AF than the GeForce GTX 980 Ti. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
GeForce GTX 980 Ti		176000 Mtexels/sec
	Difference: 328000 (186%)

Pixel Rate

The Radeon RX 7900 XT will be quite a bit (more or less 200%) faster with regards to full screen anti-aliasing than the GeForce GTX 980 Ti, and capable of handling higher resolutions more effectively. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce GTX 980 Ti		96000 Mpixels/sec
	Difference: 192000 (200%)

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 Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (measured in MB per second) that can be moved over the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.