GeForce RTX 3080 vs Geforce GTX 1080 Ti

Intro

Compare all of that to the Geforce GTX 1080 Ti, which makes use of a 16 nm design. nVidia has clocked the core frequency at 1480 MHz. The GDDR5X RAM works at a speed of 1376 MHz on this particular card. It features 3584 SPUs as well as 224 Texture Address Units and 88 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 1080 Ti		250 Watts
GeForce RTX 3080		320 Watts
	Difference: 70 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 is 57% faster than the Geforce GTX 1080 Ti overall, because of its greater bandwidth. (explain)

GeForce RTX 3080		778547 MB/sec
Geforce GTX 1080 Ti		495616 MB/sec
	Difference: 282931 (57%)

Texel Rate

The GeForce RTX 3080 is just a bit (about 18%) more effective at anisotropic filtering than the Geforce GTX 1080 Ti. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Geforce GTX 1080 Ti		331520 Mtexels/sec
	Difference: 60160 (18%)

Pixel Rate

The GeForce RTX 3080 should be a bit (more or less 6%) faster with regards to full screen anti-aliasing than the Geforce GTX 1080 Ti, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Geforce GTX 1080 Ti		130240 Mpixels/sec
	Difference: 8000 (6%)

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 maximum amount of data (counted in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.