GeForce RTX 3080 Ti vs Radeon RX 7900 XTX

Intro

Compare all that to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has clocked the core frequency at 1855 MHz. The GDDR6 memory works at a speed of 2500 MHz on this specific card. It features 6144 SPUs along with 384 TAUs and 192 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 Ti		350 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 5 Watts (1%)

Memory Bandwidth

The Radeon RX 7900 XTX, in theory, should perform a bit faster than the GeForce RTX 3080 Ti in general. (explain)

Radeon RX 7900 XTX		983040 MB/sec
GeForce RTX 3080 Ti		934297 MB/sec
	Difference: 48743 (5%)

Texel Rate

The Radeon RX 7900 XTX is quite a bit (about 63%) more effective at AF than the GeForce RTX 3080 Ti. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
GeForce RTX 3080 Ti		436800 Mtexels/sec
	Difference: 275520 (63%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 7900 XTX is the winner, and very much so. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
GeForce RTX 3080 Ti		152880 Mpixels/sec
	Difference: 203280 (133%)

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 data (counted in MB per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total amount of 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends 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 max fill rate.