Radeon RX 6950 XT vs Radeon RX 7900 XTX

Intro

Compare all that to the Radeon RX 7900 XTX, which comes with core speeds of 1855 MHz on the GPU, and 2500 MHz on the 24576 MB of GDDR6 RAM. It features 6144 SPUs along with 384 Texture Address Units and 192 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6950 XT		335 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 20 Watts (6%)

Memory Bandwidth

The Radeon RX 7900 XTX should in theory be much faster than the Radeon RX 6950 XT overall. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 6950 XT		589824 MB/sec
	Difference: 393216 (67%)

Texel Rate

The Radeon RX 7900 XTX should be a small bit (about 16%) better at anisotropic filtering than the Radeon RX 6950 XT. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 6950 XT		616000 Mtexels/sec
	Difference: 96320 (16%)

Pixel Rate

If using a high screen resolution 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
Radeon RX 6950 XT		246400 Mpixels/sec
	Difference: 109760 (45%)

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 largest amount of data (counted in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of 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 clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.