Radeon RX 6950 XT vs Radeon RX 7900 XTX

Intro

Compare all that to the Radeon RX 7900 XTX, which has a clock frequency of 1855 MHz and a GDDR6 memory speed of 2500 MHz. It also uses a 384-bit memory bus, and uses a 5 nm design. It is comprised of 6144 SPUs, 384 Texture Address Units, and 192 ROPs.

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 theoretically perform quite a bit 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 just a bit (about 16%) better at AF 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

The Radeon RX 7900 XTX will be much (approximately 45%) faster with regards to FSAA than the Radeon RX 6950 XT, and also capable of handling higher resolutions more effectively. (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 (in units of MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once 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 anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total amount 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.