Radeon R9 Nano vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which features a GPU core clock speed of 1825 MHz, and 16384 MB of GDDR6 memory running at 2000 MHz through a 256-bit bus. It also features 5120 SPUs, 320 Texture Address Units, and 128 Raster Operation Units.

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

In theory, the Radeon RX 6900 XT will be 2% quicker than the Radeon R9 Nano overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX 6900 XT will be quite a bit (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 lots of anti-aliasing is important to you, then the Radeon RX 6900 XT is the winner, by a large margin. (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 largest amount of information (counted in MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.