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GeForce RTX 3090 vs Radeon RX 7900 XTX

Intro

The GeForce RTX 3090 uses a 8 nm design. nVidia has clocked the core speed at 1395 MHz. The GDDR6X memory is set to run at a speed of 1219 MHz on this particular model. It features 10496 SPUs as well as 328 Texture Address Units and 112 Rasterization Operator Units.

Compare all of that to the Radeon RX 7900 XTX, which has a core clock frequency of 1855 MHz and a GDDR6 memory frequency of 2500 MHz. It also makes use of a 384-bit bus, and uses a 5 nm design. It features 6144 SPUs, 384 Texture Address Units, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3090 350 Watts
Radeon RX 7900 XTX 355 Watts
Difference: 5 Watts (1%)

Memory Bandwidth

As far as performance goes, the Radeon RX 7900 XTX should theoretically be a bit superior to the GeForce RTX 3090 in general. (explain)

Radeon RX 7900 XTX 983040 MB/sec
GeForce RTX 3090 958668 MB/sec
Difference: 24372 (3%)

Texel Rate

The Radeon RX 7900 XTX is a lot (about 56%) more effective at AF than the GeForce RTX 3090. (explain)

Radeon RX 7900 XTX 712320 Mtexels/sec
GeForce RTX 3090 457560 Mtexels/sec
Difference: 254760 (56%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 7900 XTX is the winner, by a large margin. (explain)

Radeon RX 7900 XTX 356160 Mpixels/sec
GeForce RTX 3090 156240 Mpixels/sec
Difference: 199920 (128%)

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 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.

Specifications

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Model GeForce RTX 3090 Radeon RX 7900 XTX
Manufacturer nVidia AMD
Year September 2020 December 2022
Code Name GA102-300-A1 Navi 31 XTX
Memory 24576 MB 24576 MB
Core Speed 1395 MHz 1855 MHz
Memory Speed 1219 GB/s 2500 GB/s
Power (Max TDP) 350 watts 355 watts
Bandwidth 958668 MB/sec 983040 MB/sec
Texel Rate 457560 Mtexels/sec 712320 Mtexels/sec
Pixel Rate 156240 Mpixels/sec 356160 Mpixels/sec
Unified Shaders 10496 6144
Texture Mapping Units 328 384
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: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher 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 amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher 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 maximum amount of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core 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 rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 3090

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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