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GeForce RTX 3080 vs GeForce RTX 3080 12 GB

Intro

The GeForce RTX 3080 features a core clock speed of 1440 MHz and a GDDR6X memory speed of 1188 MHz. It also uses a 320-bit bus, and makes use of a 8 nm design. It is comprised of 8704 SPUs, 272 TAUs, and 96 ROPs.

Compare those specs to the GeForce RTX 3080 12 GB, which features a core clock speed of 1260 MHz and a GDDR6X memory frequency of 1188 MHz. It also features a 384-bit memory bus, and makes use of a 8 nm design. It is comprised of 8960 SPUs, 280 Texture Address Units, and 112 Raster Operation Units.

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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

In theory, the GeForce RTX 3080 12 GB will be 20% faster than the GeForce RTX 3080 in general, due to its greater data rate. (explain)

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

Texel Rate

The GeForce RTX 3080 should be a small bit (approximately 11%) better 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 just a bit (approximately 2%) faster with regards to anti-aliasing than the GeForce RTX 3080, and should be capable of handling higher screen resolutions without slowing down too much. (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

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GeForce RTX 3080

Amazon.com

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GeForce RTX 3080 12 GB

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce RTX 3080 GeForce RTX 3080 12 GB
Manufacturer nVidia nVidia
Year September 2020 January 2022
Code Name Ampere GA102-200-KD-A1 GA102-220-A1
Memory 10240 MB 12288 MB
Core Speed 1440 MHz 1260 MHz
Memory Speed 1188 GB/s 1188 GB/s
Power (Max TDP) 320 watts 350 watts
Bandwidth 778547 MB/sec 934298 MB/sec
Texel Rate 391680 Mtexels/sec 352800 Mtexels/sec
Pixel Rate 138240 Mpixels/sec 141120 Mpixels/sec
Unified Shaders 8704 8960
Texture Mapping Units 272 280
Render Output Units 96 112
Bus Type GDDR6X GDDR6X
Bus Width 320-bit 384-bit
Fab Process 8 nm 8 nm
Transistors 28300 million 28300 million
Bus PCIe 4.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of information (counted in MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 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 anti-aliasing, High Dynamic Range and higher screen 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 speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce RTX 3080

Amazon.com

Check prices at:

GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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