Radeon RX 6700 XT vs Radeon RX 6900 XT

Intro

Compare all that to the Radeon RX 6900 XT, which has a core clock frequency of 1825 MHz and a GDDR6 memory frequency of 2000 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It features 5120 SPUs, 320 Texture Address Units, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6700 XT		230 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 70 Watts (30%)

Memory Bandwidth

The Radeon RX 6900 XT should in theory be a lot faster than the Radeon RX 6700 XT in general. (explain)

Radeon RX 6900 XT		524288 MB/sec
Radeon RX 6700 XT		393216 MB/sec
	Difference: 131072 (33%)

Texel Rate

The Radeon RX 6900 XT should be much (more or less 57%) better at texture filtering than the Radeon RX 6700 XT. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon RX 6700 XT		371360 Mtexels/sec
	Difference: 212640 (57%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6900 XT is a better choice, and very much so. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon RX 6700 XT		148544 Mpixels/sec
	Difference: 85056 (57%)

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 max amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units by the core 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 processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the card's 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 output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.