GeForce RTX 3080 Ti vs GeForce RTX 4090

Intro

Compare that to the GeForce RTX 4090, which features core clock speeds of 2235 MHz on the GPU, and 1325 MHz on the 24576 MB of GDDR6X RAM. It features 16384 SPUs along with 512 TAUs and 176 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 Ti		350 Watts
GeForce RTX 4090		450 Watts
	Difference: 100 Watts (29%)

Memory Bandwidth

Theoretically, the GeForce RTX 4090 should be just a bit faster than the GeForce RTX 3080 Ti overall. (explain)

GeForce RTX 4090		1042432 MB/sec
GeForce RTX 3080 Ti		934297 MB/sec
	Difference: 108135 (12%)

Texel Rate

The GeForce RTX 4090 will be much (about 162%) faster with regards to texture filtering than the GeForce RTX 3080 Ti. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
GeForce RTX 3080 Ti		436800 Mtexels/sec
	Difference: 707520 (162%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 4090 is a better choice, by far. (explain)

GeForce RTX 4090		393360 Mpixels/sec
GeForce RTX 3080 Ti		152880 Mpixels/sec
	Difference: 240480 (157%)

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 maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video 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 maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.