Radeon RX 6700 XT vs Radeon RX 6900 XT

Intro

Compare all that to the Radeon RX 6900 XT, which has core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 5120 SPUs along with 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

Theoretically, the Radeon RX 6900 XT should perform quite a bit faster than the Radeon RX 6700 XT overall. (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 is much (about 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 using high levels of AA is important to you, then the Radeon RX 6900 XT is a better choice, by far. (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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.