GeForce RTX 2080 vs GeForce RTX 3080

Intro

Compare all of that to the GeForce RTX 3080, which comes with a core clock speed of 1440 MHz and a GDDR6X memory speed of 1188 MHz. It also makes use of a 320-bit bus, and uses a 8 nm design. It is comprised of 8704 SPUs, 272 TAUs, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080		215 Watts
GeForce RTX 3080		320 Watts
	Difference: 105 Watts (49%)

Memory Bandwidth

The GeForce RTX 3080 should in theory be quite a bit faster than the GeForce RTX 2080 overall. (explain)

GeForce RTX 3080		778547 MB/sec
GeForce RTX 2080		458752 MB/sec
	Difference: 319795 (70%)

Texel Rate

The GeForce RTX 3080 is a lot (more or less 41%) faster with regards to texture filtering than the GeForce RTX 2080. (explain)

GeForce RTX 3080		391680 Mtexels/sec
GeForce RTX 2080		278760 Mtexels/sec
	Difference: 112920 (41%)

Pixel Rate

The GeForce RTX 3080 is a lot (approximately 43%) more effective at full screen anti-aliasing than the GeForce RTX 2080, and should be capable of handling higher resolutions better. (explain)

GeForce RTX 3080		138240 Mpixels/sec
GeForce RTX 2080		96960 Mpixels/sec
	Difference: 41280 (43%)

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 largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses 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 higher screen 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 amount of texture units by the core clock speed of the chip. The better this number, the better the video 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 the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.