GeForce RTX 4090 vs Radeon Pro Duo

Intro

Compare those specs to the Radeon Pro Duo, which has GPU core speed of 1000 MHz, and 4096 MB of HBM RAM set to run at 500 MHz through a 4096-bit bus. It also is made up of 4096 SPUs, 256 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon Pro Duo		350 Watts
GeForce RTX 4090		450 Watts
	Difference: 100 Watts (29%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4090 should in theory be a little bit superior to the Radeon Pro Duo overall. (explain)

GeForce RTX 4090		1042432 MB/sec
Radeon Pro Duo		1024000 MB/sec
	Difference: 18432 (2%)

Texel Rate

The GeForce RTX 4090 is much (about 124%) better at texture filtering than the Radeon Pro Duo. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
Radeon Pro Duo		512000 Mtexels/sec
	Difference: 632320 (124%)

Pixel Rate

The GeForce RTX 4090 is quite a bit (more or less 207%) better at anti-aliasing than the Radeon Pro Duo, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce RTX 4090		393360 Mpixels/sec
Radeon Pro Duo		128000 Mpixels/sec
	Difference: 265360 (207%)

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 largest amount of data (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better 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 its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.