Geforce GTX 1080 Ti vs Radeon RX 7900 XT

Intro

Compare those specs to the Radeon RX 7900 XT, which features a core clock speed of 1500 MHz and a GDDR6 memory speed of 2500 MHz. It also uses a 320-bit bus, and makes use of a 5 nm design. It features 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 1080 Ti		250 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 50 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT is 65% quicker than the Geforce GTX 1080 Ti overall, due to its greater data rate. (explain)

Radeon RX 7900 XT		819200 MB/sec
Geforce GTX 1080 Ti		495616 MB/sec
	Difference: 323584 (65%)

Texel Rate

The Radeon RX 7900 XT is a lot (more or less 52%) better at anisotropic filtering than the Geforce GTX 1080 Ti. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Geforce GTX 1080 Ti		331520 Mtexels/sec
	Difference: 172480 (52%)

Pixel Rate

The Radeon RX 7900 XT should be a lot (approximately 121%) more effective at FSAA than the Geforce GTX 1080 Ti, and capable of handling higher resolutions while still performing well. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Geforce GTX 1080 Ti		130240 Mpixels/sec
	Difference: 157760 (121%)

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 max amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's 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 rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.