GeForce RTX 3080 Ti vs GeForce RTX 3090

Intro

Compare that to the GeForce RTX 3090, which has GPU core speed of 1395 MHz, and 24576 MB of GDDR6X memory running at 1219 MHz through a 384-bit bus. It also is comprised of 10496 SPUs, 328 Texture Address Units, and 112 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3090 should perform just a bit faster than the GeForce RTX 3080 Ti overall. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce RTX 3080 Ti		934297 MB/sec
	Difference: 24371 (3%)

Texel Rate

The GeForce RTX 3090 should be just a bit (more or less 5%) faster with regards to anisotropic filtering than the GeForce RTX 3080 Ti. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce RTX 3080 Ti		436800 Mtexels/sec
	Difference: 20760 (5%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 3090 is superior to the GeForce RTX 3080 Ti, though not by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce RTX 3080 Ti		152880 Mpixels/sec
	Difference: 3360 (2%)

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 (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.