Radeon RX 6950 XT vs Radeon RX 7900 XTX

Intro

Compare all that to the Radeon RX 7900 XTX, which features a GPU core clock speed of 1855 MHz, and 24576 MB of GDDR6 RAM running at 2500 MHz through a 384-bit bus. It also features 6144 SPUs, 384 TAUs, and 192 Raster Operation 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

In theory, the Radeon RX 7900 XTX should be 67% quicker than the Radeon RX 6950 XT in general, because of its higher data rate. (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 is a bit (more or less 16%) faster with regards to texture 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 running with a high resolution is important to you, then the Radeon RX 7900 XTX is superior to the Radeon RX 6950 XT, by a large margin. (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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.