GeForce GTX 580 3GB vs GeForce RTX 3080

Intro

Compare those specifications to the GeForce RTX 3080, which has a clock frequency of 1440 MHz and a GDDR6X memory frequency of 1188 MHz. It also makes use of a 320-bit bus, and makes use of a 8 nm design. It is comprised of 8704 SPUs, 272 Texture Address Units, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 580 3GB		244 Watts
GeForce RTX 3080		320 Watts
	Difference: 76 Watts (31%)

Memory Bandwidth

The GeForce RTX 3080, in theory, should be quite a bit faster than the GeForce GTX 580 3GB overall. (explain)

GeForce RTX 3080		778547 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 586163 (305%)

Texel Rate

The GeForce RTX 3080 should be much (about 693%) better at AF than the GeForce GTX 580 3GB. (explain)

GeForce RTX 3080		391680 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 342272 (693%)

Pixel Rate

The GeForce RTX 3080 should be quite a bit (more or less 273%) faster with regards to anti-aliasing than the GeForce GTX 580 3GB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce RTX 3080		138240 Mpixels/sec
GeForce GTX 580 3GB		37056 Mpixels/sec
	Difference: 101184 (273%)

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 MB 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 speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 - the lower the bandwidth is, the lower the ability to reach the max fill rate.