GeForce RTX 3080 vs GeForce RTX 3090

Intro

Compare all of that to the GeForce RTX 3090, which makes use of a 8 nm design. nVidia has clocked the core frequency at 1395 MHz. The GDDR6X memory is set to run at a frequency of 1219 MHz on this specific model. It features 10496 SPUs along with 328 Texture Address Units and 112 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080		320 Watts
GeForce RTX 3090		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

The GeForce RTX 3090 should in theory perform a lot faster than the GeForce RTX 3080 overall. (explain)

GeForce RTX 3090		958668 MB/sec
GeForce RTX 3080		778547 MB/sec
	Difference: 180121 (23%)

Texel Rate

The GeForce RTX 3090 is a small bit (more or less 17%) more effective at AF than the GeForce RTX 3080. (explain)

GeForce RTX 3090		457560 Mtexels/sec
GeForce RTX 3080		391680 Mtexels/sec
	Difference: 65880 (17%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 3090 is superior to the GeForce RTX 3080, but only just. (explain)

GeForce RTX 3090		156240 Mpixels/sec
GeForce RTX 3080		138240 Mpixels/sec
	Difference: 18000 (13%)

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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.