GeForce RTX 4070 Ti vs Radeon RX 7900 XT

Intro

Compare those specifications to the Radeon RX 7900 XT, which comes with clock speeds of 1500 MHz on the GPU, and 2500 MHz on the 20480 MB of GDDR6 memory. It features 5376 SPUs along with 336 Texture Address Units and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4070 Ti		285 Watts
Radeon RX 7900 XT		300 Watts
	Difference: 15 Watts (5%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XT will be 59% quicker than the GeForce RTX 4070 Ti in general, because of its greater bandwidth. (explain)

Radeon RX 7900 XT		819200 MB/sec
GeForce RTX 4070 Ti		516096 MB/sec
	Difference: 303104 (59%)

Texel Rate

The GeForce RTX 4070 Ti will be a little bit (more or less 10%) more effective at AF than the Radeon RX 7900 XT. (explain)

GeForce RTX 4070 Ti		554400 Mtexels/sec
Radeon RX 7900 XT		504000 Mtexels/sec
	Difference: 50400 (10%)

Pixel Rate

The Radeon RX 7900 XT should be quite a bit (approximately 56%) more effective at AA than the GeForce RTX 4070 Ti, and also capable of handling higher resolutions more effectively. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
GeForce RTX 4070 Ti		184800 Mpixels/sec
	Difference: 103200 (56%)

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 largest amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, 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 the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.