GeForce RTX 3080 12 GB vs Radeon HD 5750 1GB

Intro

Compare those specifications to the Radeon HD 5750 1GB, which has a GPU core clock speed of 700 MHz, and 1024 MB of GDDR5 RAM running at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 264 Watts (307%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 12 GB will be 1169% faster than the Radeon HD 5750 1GB in general, because of its greater bandwidth. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 860698 (1169%)

Texel Rate

The GeForce RTX 3080 12 GB should be much (more or less 1300%) better at AF than the Radeon HD 5750 1GB. (explain)

GeForce RTX 3080 12 GB		352800 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 327600 (1300%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3080 12 GB is the winner, by far. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 129920 (1160%)

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 maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.