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GeForce RTX 3080 vs GeForce RTX 3090

Intro

The GeForce RTX 3080 uses a 8 nm design. nVidia has clocked the core speed at 1440 MHz. The GDDR6X RAM runs at a frequency of 1188 MHz on this specific card. It features 8704 SPUs along with 272 TAUs and 96 ROPs.

Compare those specifications to the GeForce RTX 3090, which has a clock speed of 1395 MHz and a GDDR6X memory frequency of 1219 MHz. It also uses a 384-bit bus, and uses a 8 nm design. It is made up of 10496 SPUs, 328 Texture Address Units, and 112 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 320 Watts
GeForce RTX 3090 350 Watts
Difference: 30 Watts (9%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3090 should in theory be much superior to the GeForce RTX 3080 overall. (explain)

GeForce RTX 3090 958668 MB/sec
GeForce RTX 3080 778547 MB/sec
Difference: 180121 (23%)

Texel Rate

The GeForce RTX 3090 is a little bit (approximately 17%) better at texture filtering than the GeForce RTX 3080. (explain)

GeForce RTX 3090 457560 Mtexels/sec
GeForce RTX 3080 391680 Mtexels/sec
Difference: 65880 (17%)

Pixel Rate

The GeForce RTX 3090 will be a bit (more or less 13%) more effective at AA than the GeForce RTX 3080, and capable of handling higher resolutions more effectively. (explain)

GeForce RTX 3090 156240 Mpixels/sec
GeForce RTX 3080 138240 Mpixels/sec
Difference: 18000 (13%)

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

Check prices at:

GeForce RTX 3090

Amazon.com

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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 3090
Manufacturer nVidia nVidia
Year September 2020 September 2020
Code Name Ampere GA102-200-KD-A1 GA102-300-A1
Memory 10240 MB 24576 MB
Core Speed 1440 MHz 1395 MHz
Memory Speed 1188 GB/s 1219 GB/s
Power (Max TDP) 320 watts 350 watts
Bandwidth 778547 MB/sec 958668 MB/sec
Texel Rate 391680 Mtexels/sec 457560 Mtexels/sec
Pixel Rate 138240 Mpixels/sec 156240 Mpixels/sec
Unified Shaders 8704 10496
Texture Mapping Units 272 328
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: Memory bandwidth is the maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. 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 output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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GeForce RTX 3080

Amazon.com

Check prices at:

GeForce RTX 3090

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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