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GeForce RTX 3080 Ti vs GeForce RTX 3090

Intro

The GeForce RTX 3080 Ti features core speeds of 1365 MHz on the GPU, and 1188 MHz on the 12288 MB of GDDR6X RAM. It features 10240 SPUs along with 320 Texture Address Units and 112 ROPs.

Compare that to the GeForce RTX 3090, which makes use of a 8 nm design. nVidia has clocked the core speed at 1395 MHz. The GDDR6X RAM runs at a frequency of 1219 MHz on this particular model. It features 10496 SPUs as well as 328 TAUs and 112 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The GeForce RTX 3090 should in theory be a small bit faster than the GeForce RTX 3080 Ti in general. (explain)

GeForce RTX 3090 958668 MB/sec
GeForce RTX 3080 Ti 934297 MB/sec
Difference: 24371 (3%)

Texel Rate

The GeForce RTX 3090 should be a bit (about 5%) better at anisotropic filtering than the GeForce RTX 3080 Ti. (explain)

GeForce RTX 3090 457560 Mtexels/sec
GeForce RTX 3080 Ti 436800 Mtexels/sec
Difference: 20760 (5%)

Pixel Rate

The GeForce RTX 3090 should be a little bit (approximately 2%) faster with regards to full screen anti-aliasing than the GeForce RTX 3080 Ti, and also will be able to handle higher resolutions more effectively. (explain)

GeForce RTX 3090 156240 Mpixels/sec
GeForce RTX 3080 Ti 152880 Mpixels/sec
Difference: 3360 (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 Ti

Amazon.com

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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 Ti GeForce RTX 3090
Manufacturer nVidia nVidia
Year June 2021 September 2020
Code Name Ampere GA102-225-A1 GA102-300-A1
Memory 12288 MB 24576 MB
Core Speed 1365 MHz 1395 MHz
Memory Speed 1188 GB/s 1219 GB/s
Power (Max TDP) 350 watts 350 watts
Bandwidth 934297 MB/sec 958668 MB/sec
Texel Rate 436800 Mtexels/sec 457560 Mtexels/sec
Pixel Rate 152880 Mpixels/sec 156240 Mpixels/sec
Unified Shaders 10240 10496
Texture Mapping Units 320 328
Render Output Units 112 112
Bus Type GDDR6X GDDR6X
Bus Width 384-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 max amount of data (measured in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 are processed per second. This number is calculated by multiplying the total number of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce RTX 3080 Ti

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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