GeForce RTX 2080 SUPER vs Radeon RX 7900 XTX

Intro

Compare those specs to the Radeon RX 7900 XTX, which has a GPU core clock speed of 1855 MHz, and 24576 MB of GDDR6 memory running at 2500 MHz through a 384-bit bus. It also is comprised of 6144 Stream Processors, 384 TAUs, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 SUPER		250 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 105 Watts (42%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX is 94% quicker than the GeForce RTX 2080 SUPER in general, due to its higher bandwidth. (explain)

Radeon RX 7900 XTX		983040 MB/sec
GeForce RTX 2080 SUPER		507904 MB/sec
	Difference: 475136 (94%)

Texel Rate

The Radeon RX 7900 XTX should be a lot (more or less 125%) better at texture filtering than the GeForce RTX 2080 SUPER. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
GeForce RTX 2080 SUPER		316800 Mtexels/sec
	Difference: 395520 (125%)

Pixel Rate

The Radeon RX 7900 XTX will be a lot (about 237%) faster with regards to FSAA than the GeForce RTX 2080 SUPER, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
GeForce RTX 2080 SUPER		105600 Mpixels/sec
	Difference: 250560 (237%)

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: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.