GeForce RTX 3080 vs GeForce RTX 3080 12 GB

Intro

Compare those specs to the GeForce RTX 3080 12 GB, which comes with a core clock frequency of 1260 MHz and a GDDR6X memory frequency of 1188 MHz. It also makes use of a 384-bit memory bus, and uses a 8 nm design. It 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

As far as performance goes, the GeForce RTX 3080 12 GB should theoretically be just a bit superior to 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 bit (more or less 11%) faster with regards to anisotropic 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 is just a bit (approximately 2%) faster with regards to full screen anti-aliasing than the GeForce RTX 3080, and 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: Memory bandwidth is the largest amount of information (counted in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.