GeForce RTX 4070 Ti vs Radeon RX 7900 XTX

Intro

Compare those specs to the Radeon RX 7900 XTX, which comes with core clock speeds of 1855 MHz on the GPU, and 2500 MHz on the 24576 MB of GDDR6 memory. It features 6144 SPUs as well as 384 TAUs 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 XTX		355 Watts
	Difference: 70 Watts (25%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 7900 XTX should perform much faster than the GeForce RTX 4070 Ti in general. (explain)

Radeon RX 7900 XTX		983040 MB/sec
GeForce RTX 4070 Ti		516096 MB/sec
	Difference: 466944 (90%)

Texel Rate

The Radeon RX 7900 XTX is much (about 28%) faster with regards to texture filtering than the GeForce RTX 4070 Ti. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
GeForce RTX 4070 Ti		554400 Mtexels/sec
	Difference: 157920 (28%)

Pixel Rate

The Radeon RX 7900 XTX is a lot (about 93%) better at anti-aliasing than the GeForce RTX 4070 Ti, and should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
GeForce RTX 4070 Ti		184800 Mpixels/sec
	Difference: 171360 (93%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that can be processed per 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 applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs 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 output rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.