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GeForce RTX 3080 vs GeForce RTX 3090

Intro

The GeForce RTX 3080 comes with core clock speeds of 1440 MHz on the GPU, and 1188 MHz on the 10240 MB of GDDR6X memory. It features 8704 SPUs as well as 272 Texture Address Units and 96 ROPs.

Compare those specs to the GeForce RTX 3090, which has GPU clock speed of 1395 MHz, and 24576 MB of GDDR6X RAM set to run at 1219 MHz through a 384-bit bus. It also features 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

Theoretically speaking, the GeForce RTX 3090 is 23% quicker than the GeForce RTX 3080 overall, due to its greater data rate. (explain)

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

Texel Rate

The GeForce RTX 3090 will be a bit (more or less 17%) better at anisotropic filtering than the GeForce RTX 3080. (explain)

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

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 3090 is a better choice, but not by far. (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

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.

Specifications

Display 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 data (counted in megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

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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