GeForce RTX 3080 12 GB vs Radeon R9 Nano

Intro

Compare those specs to the Radeon R9 Nano, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The HBM memory runs at a frequency of 500 MHz on this particular card. It features 4096 SPUs as well as 256 TAUs and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 Nano		175 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 175 Watts (100%)

Memory Bandwidth

Theoretically, the GeForce RTX 3080 12 GB should be a lot faster than the Radeon R9 Nano in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon R9 Nano		512000 MB/sec
	Difference: 422298 (82%)

Texel Rate

The GeForce RTX 3080 12 GB is a lot (about 38%) faster with regards to AF than the Radeon R9 Nano. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon R9 Nano		256000 Mtexels/sec
	Difference: 96800 (38%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce RTX 3080 12 GB is superior to the Radeon R9 Nano, and very much so. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon R9 Nano		64000 Mpixels/sec
	Difference: 77120 (121%)

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 (counted in MB per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.