GeForce RTX 3080 Ti vs Radeon RX 7900 XTX

Intro

Compare that to the Radeon RX 7900 XTX, which uses a 5 nm design. AMD has set the core frequency at 1855 MHz. The GDDR6 memory is set to run at a frequency of 2500 MHz on this specific model. 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

As far as performance goes, the Radeon RX 7900 XTX should in theory be a small bit superior to 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 much (more or less 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

The Radeon RX 7900 XTX should be much (approximately 133%) faster with regards to AA than the GeForce RTX 3080 Ti, and also will be capable of handling higher resolutions better. (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: Bandwidth is the max amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 number of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.