GeForce RTX 3080 vs GeForce RTX 3090

Intro

Compare all of that to the GeForce RTX 3090, which uses a 8 nm design. nVidia has clocked the core speed at 1395 MHz. The GDDR6X RAM is set to run at a speed of 1219 MHz on this card. It features 10496 SPUs as well as 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

Theoretically speaking, the GeForce RTX 3090 should be 23% faster than the GeForce RTX 3080 in general, due to its greater data rate. (explain)

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

Texel Rate

The GeForce RTX 3090 is a little bit (approximately 17%) faster with regards to 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 running with lots of anti-aliasing is important to you, then the GeForce RTX 3090 is superior to the GeForce RTX 3080, but not by far. (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 maximum amount of data (in units of MB per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, 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 amount of pixels the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. 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 output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.