GeForce RTX 3080 Ti vs Geforce GTX 770

Intro

Compare all of that to the Geforce GTX 770, which has a core clock speed of 1046 MHz and a GDDR5 memory speed of 1753 MHz. It also features a 256-bit bus, and uses a 28 nm design. It is comprised of 1536 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

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

Theoretically speaking, the GeForce RTX 3080 Ti will be 316% faster than the Geforce GTX 770 overall, due to its higher data rate. (explain)

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

Texel Rate

The GeForce RTX 3080 Ti should be quite a bit (approximately 226%) more effective at anisotropic filtering than the Geforce GTX 770. (explain)

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

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3080 Ti is the winner, by a large margin. (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: Bandwidth is the max amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better 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 most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.