GeForce RTX 3080 vs GeForce RTX 3080 12 GB

Intro

Compare all of that to the GeForce RTX 3080 12 GB, which features GPU clock speed of 1260 MHz, and 12288 MB of GDDR6X RAM running at 1188 MHz through a 384-bit bus. It also is made up of 8960 SPUs, 280 Texture Address Units, and 112 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080		320 Watts
GeForce RTX 3080 12 GB		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

The GeForce RTX 3080 12 GB, in theory, should perform just a bit faster than the GeForce RTX 3080 in general. (explain)

GeForce RTX 3080 12 GB		934298 MB/sec
GeForce RTX 3080		778547 MB/sec
	Difference: 155751 (20%)

Texel Rate

The GeForce RTX 3080 will be a little bit (about 11%) more effective at texture filtering than the GeForce RTX 3080 12 GB. (explain)

GeForce RTX 3080		391680 Mtexels/sec
GeForce RTX 3080 12 GB		352800 Mtexels/sec
	Difference: 38880 (11%)

Pixel Rate

The GeForce RTX 3080 12 GB will be a little bit (approximately 2%) better at anti-aliasing than the GeForce RTX 3080, and will be capable of handling higher resolutions more effectively. (explain)

GeForce RTX 3080 12 GB		141120 Mpixels/sec
GeForce RTX 3080		138240 Mpixels/sec
	Difference: 2880 (2%)

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 maximum amount of data (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip 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 - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.