Radeon R9 Nano vs Radeon RX 6900 XT

Intro

Compare those specifications to the Radeon RX 6900 XT, which uses a 7 nm design. AMD has set the core frequency at 1825 MHz. The GDDR6 memory is set to run at a frequency of 2000 MHz on this particular card. It features 5120 SPUs along with 320 TAUs and 128 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
Radeon RX 6900 XT		300 Watts
	Difference: 125 Watts (71%)

Memory Bandwidth

The Radeon RX 6900 XT should in theory be a small bit faster than the Radeon R9 Nano in general. (explain)

Radeon RX 6900 XT		524288 MB/sec
Radeon R9 Nano		512000 MB/sec
	Difference: 12288 (2%)

Texel Rate

The Radeon RX 6900 XT should be a lot (about 128%) better at anisotropic filtering than the Radeon R9 Nano. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon R9 Nano		256000 Mtexels/sec
	Difference: 328000 (128%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6900 XT is superior to the Radeon R9 Nano, and very much so. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 169600 (265%)

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 max amount of information (in units of megabytes per second) that can be transported across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, 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 figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at 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 can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.