Radeon R9 Nano vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which features a clock speed of 2200 MHz and a GDDR6 memory speed of 2250 MHz. It also uses a 64-bit memory bus, and makes use of a 6 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon R9 Nano		175 Watts
	Difference: 68 Watts (64%)

Memory Bandwidth

The Radeon R9 Nano should in theory be much faster than the Radeon RX 6500 XT overall. (explain)

Radeon R9 Nano		512000 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 364544 (247%)

Texel Rate

The Radeon R9 Nano should be quite a bit (about 82%) faster with regards to texture filtering than the Radeon RX 6500 XT. (explain)

Radeon R9 Nano		256000 Mtexels/sec
Radeon RX 6500 XT		140800 Mtexels/sec
	Difference: 115200 (82%)

Pixel Rate

The Radeon RX 6500 XT should be a little bit (approximately 10%) faster with regards to full screen anti-aliasing than the Radeon R9 Nano, and able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 6400 (10%)

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 megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better 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 texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.

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