GeForce RTX 3080 Ti vs Geforce GTX 1080 Ti

Intro

Compare those specs to the Geforce GTX 1080 Ti, which has core clock speeds of 1480 MHz on the GPU, and 1376 MHz on the 11264 MB of GDDR5X memory. It features 3584 SPUs along with 224 Texture Address Units and 88 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 1080 Ti		250 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 100 Watts (40%)

Memory Bandwidth

Theoretically, the GeForce RTX 3080 Ti should perform a lot faster than the Geforce GTX 1080 Ti in general. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Geforce GTX 1080 Ti		495616 MB/sec
	Difference: 438681 (89%)

Texel Rate

The GeForce RTX 3080 Ti will be a lot (more or less 32%) faster with regards to texture filtering than the Geforce GTX 1080 Ti. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Geforce GTX 1080 Ti		331520 Mtexels/sec
	Difference: 105280 (32%)

Pixel Rate

The GeForce RTX 3080 Ti will be a small bit (more or less 17%) faster with regards to full screen anti-aliasing than the Geforce GTX 1080 Ti, and should be capable of handling higher screen resolutions better. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Geforce GTX 1080 Ti		130240 Mpixels/sec
	Difference: 22640 (17%)

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 information (counted in MB per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.