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GeForce RTX 3090 vs Radeon RX 7900 XT

Intro

The GeForce RTX 3090 comes with a clock frequency of 1395 MHz and a GDDR6X memory speed of 1219 MHz. It also features a 384-bit bus, and makes use of a 8 nm design. It features 10496 SPUs, 328 TAUs, and 112 Raster Operation Units.

Compare all of that to the Radeon RX 7900 XT, which has GPU clock speed of 1500 MHz, and 20480 MB of GDDR6 memory set to run at 2500 MHz through a 320-bit bus. It also is made up of 5376 SPUs, 336 TAUs, and 192 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 7900 XT 300 Watts
GeForce RTX 3090 350 Watts
Difference: 50 Watts (17%)

Memory Bandwidth

Performance-wise, the GeForce RTX 3090 should theoretically be a little bit superior to the Radeon RX 7900 XT in general. (explain)

GeForce RTX 3090 958668 MB/sec
Radeon RX 7900 XT 819200 MB/sec
Difference: 139468 (17%)

Texel Rate

The Radeon RX 7900 XT should be a bit (about 10%) better at texture filtering than the GeForce RTX 3090. (explain)

Radeon RX 7900 XT 504000 Mtexels/sec
GeForce RTX 3090 457560 Mtexels/sec
Difference: 46440 (10%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 7900 XT is superior to the GeForce RTX 3090, and very much so. (explain)

Radeon RX 7900 XT 288000 Mpixels/sec
GeForce RTX 3090 156240 Mpixels/sec
Difference: 131760 (84%)

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 3090

Amazon.com

Check prices at:

Radeon RX 7900 XT

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

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Model GeForce RTX 3090 Radeon RX 7900 XT
Manufacturer nVidia AMD
Year September 2020 December 2022
Code Name GA102-300-A1 Navi 31 XT
Memory 24576 MB 20480 MB
Core Speed 1395 MHz 1500 MHz
Memory Speed 1219 GB/s 2500 GB/s
Power (Max TDP) 350 watts 300 watts
Bandwidth 958668 MB/sec 819200 MB/sec
Texel Rate 457560 Mtexels/sec 504000 Mtexels/sec
Pixel Rate 156240 Mpixels/sec 288000 Mpixels/sec
Unified Shaders 10496 5376
Texture Mapping Units 328 336
Render Output Units 112 192
Bus Type GDDR6X GDDR6
Bus Width 384-bit 320-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 moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many 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

Hide Prices

GeForce RTX 3090

Amazon.com

Check prices at:

Radeon RX 7900 XT

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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