GeForce RTX 3080 Ti vs Geforce GTX 770

Intro

Compare those specs to the Geforce GTX 770, which comes with core clock speeds of 1046 MHz on the GPU, and 1753 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
GeForce RTX 3080 Ti		350 Watts
	Difference: 120 Watts (52%)

Memory Bandwidth

In theory, the GeForce RTX 3080 Ti should perform much faster than the Geforce GTX 770 overall. (explain)

GeForce RTX 3080 Ti		934297 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 709913 (316%)

Texel Rate

The GeForce RTX 3080 Ti will be much (more or less 226%) more effective at AF than the Geforce GTX 770. (explain)

GeForce RTX 3080 Ti		436800 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 302912 (226%)

Pixel Rate

The GeForce RTX 3080 Ti will be much (more or less 357%) more effective at FSAA than the Geforce GTX 770, and also will be able to handle higher resolutions better. (explain)

GeForce RTX 3080 Ti		152880 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 119408 (357%)

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 transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 can be applied in one second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.