GeForce RTX 3090 vs Radeon Pro Duo

Intro

Compare those specs to the Radeon Pro Duo, which has a GPU core clock speed of 1000 MHz, and 4096 MB of HBM RAM running at 500 MHz through a 4096-bit bus. It also is comprised of 4096 SPUs, 256 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Radeon Pro Duo will be 7% faster than the GeForce RTX 3090 in general, because of its higher data rate. (explain)

Radeon Pro Duo		1024000 MB/sec
GeForce RTX 3090		958668 MB/sec
	Difference: 65332 (7%)

Texel Rate

The Radeon Pro Duo will be a little bit (more or less 12%) faster with regards to AF than the GeForce RTX 3090. (explain)

Radeon Pro Duo		512000 Mtexels/sec
GeForce RTX 3090		457560 Mtexels/sec
	Difference: 54440 (12%)

Pixel Rate

The GeForce RTX 3090 is much (approximately 22%) faster with regards to anti-aliasing than the Radeon Pro Duo, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon Pro Duo		128000 Mpixels/sec
	Difference: 28240 (22%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, 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 the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.