GeForce RTX 3080 Ti vs GeForce RTX 3090

Intro

Compare that to the GeForce RTX 3090, which features GPU clock speed of 1395 MHz, and 24576 MB of GDDR6X memory set to run at 1219 MHz through a 384-bit bus. It also is made up of 10496 SPUs, 328 TAUs, and 112 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the GeForce RTX 3090 should perform a little 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 will be a small bit (about 5%) better at texture 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 running with high levels of AA is important to you, then the GeForce RTX 3090 is the winner, 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 megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.