GeForce RTX 3080 12 GB vs Radeon RX 470 4GB

Intro

Compare those specifications to the Radeon RX 470 4GB, which features GPU core speed of 926 MHz, and 4096 MB of GDDR5 RAM set to run at 1650 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 230 Watts (192%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3080 12 GB should theoretically be much superior to the Radeon RX 470 4GB overall. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 723098 (342%)

Texel Rate

The GeForce RTX 3080 12 GB should be a lot (about 198%) faster with regards to anisotropic filtering than the Radeon RX 470 4GB. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 234272 (198%)

Pixel Rate

The GeForce RTX 3080 12 GB is quite a bit (approximately 376%) faster with regards to FSAA than the Radeon RX 470 4GB, and will be able to handle higher resolutions more effectively. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 111488 (376%)

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 data (measured in MB per second) that can be moved across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that are applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at 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 card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.