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Radeon R9 Nano vs Radeon RX 6800 XT

Intro

The Radeon R9 Nano features clock speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM RAM. It features 4096 SPUs as well as 256 Texture Address Units and 64 ROPs.

Compare those specs to the Radeon RX 6800 XT, which features GPU clock speed of 1825 MHz, and 16384 MB of GDDR6 RAM set to run at 2000 MHz through a 256-bit bus. It also features 4608 Stream Processors, 288 TAUs, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano 175 Watts
Radeon RX 6800 XT 300 Watts
Difference: 125 Watts (71%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 XT should be just a bit faster than the Radeon R9 Nano in general. (explain)

Radeon RX 6800 XT 524288 MB/sec
Radeon R9 Nano 512000 MB/sec
Difference: 12288 (2%)

Texel Rate

The Radeon RX 6800 XT will be much (about 105%) more effective at texture filtering than the Radeon R9 Nano. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
Radeon R9 Nano 256000 Mtexels/sec
Difference: 269600 (105%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6800 XT is superior to the Radeon R9 Nano, by a large margin. (explain)

Radeon RX 6800 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

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Radeon R9 Nano

Amazon.com

Check prices at:

Radeon RX 6800 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 Nano Radeon RX 6800 XT
Manufacturer AMD AMD
Year September 2015 November 2020
Code Name Fiji XT Navi 21
Memory 4096 MB 16384 MB
Core Speed 1000 MHz 1825 MHz
Memory Speed 500 MHz 4000 GB/s
Power (Max TDP) 175 watts 300 watts
Bandwidth 512000 MB/sec 524288 MB/sec
Texel Rate 256000 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 64000 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 4096 4608
Texture Mapping Units 256 288
Render Output Units 64 128
Bus Type HBM GDDR6
Bus Width 4096-bit 256-bit
Fab Process 28 nm 7 nm
Transistors 8900 million 26800 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total number of texture units by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a 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 called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 Nano

Amazon.com

Check prices at:

Radeon RX 6800 XT

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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