GeForce GTX 1080 vs GeForce RTX 4090

Intro

Compare all of that to the GeForce RTX 4090, which features a GPU core clock speed of 2235 MHz, and 24576 MB of GDDR6X RAM running at 1325 MHz through a 384-bit bus. It also features 16384 Stream Processors, 512 Texture Address Units, and 176 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1080		180 Watts
GeForce RTX 4090		450 Watts
	Difference: 270 Watts (150%)

Memory Bandwidth

In theory, the GeForce RTX 4090 should perform much faster than the GeForce GTX 1080 overall. (explain)

GeForce RTX 4090		1042432 MB/sec
GeForce GTX 1080		327680 MB/sec
	Difference: 714752 (218%)

Texel Rate

The GeForce RTX 4090 should be much (about 345%) more effective at texture filtering than the GeForce GTX 1080. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
GeForce GTX 1080		257120 Mtexels/sec
	Difference: 887200 (345%)

Pixel Rate

The GeForce RTX 4090 should be quite a bit (more or less 282%) better at full screen anti-aliasing than the GeForce GTX 1080, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce RTX 4090		393360 Mpixels/sec
GeForce GTX 1080		102848 Mpixels/sec
	Difference: 290512 (282%)

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 (counted in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.