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GeForce RTX 3080 12 GB vs Radeon RX 7900 XTX

Intro

The GeForce RTX 3080 12 GB uses a 8 nm design. nVidia has clocked the core frequency at 1260 MHz. The GDDR6X memory works at a frequency of 1188 MHz on this card. It features 8960 SPUs along with 280 TAUs and 112 ROPs.

Compare that to the Radeon RX 7900 XTX, which makes use of a 5 nm design. AMD has clocked the core speed at 1855 MHz. The GDDR6 memory runs at a speed of 2500 MHz on this card. It features 6144 SPUs along with 384 TAUs and 192 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080 12 GB 350 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 5 Watts (1%)

Memory Bandwidth

Theoretically, the Radeon RX 7900 XTX should be just a bit faster than the GeForce RTX 3080 12 GB in general. (explain)

Radeon RX 7900 XTX 983040 MB/sec
GeForce RTX 3080 12 GB 934298 MB/sec
Difference: 48742 (5%)

Texel Rate

The Radeon RX 7900 XTX will be a lot (more or less 102%) faster with regards to AF than the GeForce RTX 3080 12 GB. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
GeForce RTX 3080 12 GB 352800 Mtexels/sec
Difference: 359520 (102%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 7900 XTX is a better choice, and very much so. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
GeForce RTX 3080 12 GB 141120 Mpixels/sec
Difference: 215040 (152%)

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 12 GB

Amazon.com

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Radeon RX 7900 XTX

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 12 GB Radeon RX 7900 XTX
Manufacturer nVidia AMD
Year January 2022 December 2022
Code Name GA102-220-A1 Navi 31 XTX
Memory 12288 MB 24576 MB
Core Speed 1260 MHz 1855 MHz
Memory Speed 1188 GB/s 2500 GB/s
Power (Max TDP) 350 watts 355 watts
Bandwidth 934298 MB/sec 983040 MB/sec
Texel Rate 352800 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 141120 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 8960 6144
Texture Mapping Units 280 384
Render Output Units 112 192
Bus Type GDDR6X GDDR6
Bus Width 384-bit 384-bit
Fab Process 8 nm 5 nm
Transistors 28300 million 57700 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 maximum amount of information (measured in MB per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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

Display Prices

Hide Prices

GeForce RTX 3080 12 GB

Amazon.com

Check prices at:

Radeon RX 7900 XTX

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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