GeForce RTX 4090 vs Radeon Pro Duo

Intro

Compare those specifications to the Radeon Pro Duo, which has GPU core speed of 1000 MHz, and 4096 MB of HBM memory running at 500 MHz through a 4096-bit bus. It also is comprised of 4096 Stream Processors, 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

In theory, the GeForce RTX 4090 will be 2% quicker than the Radeon Pro Duo in general, because of its higher data rate. (explain)

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

Texel Rate

The GeForce RTX 4090 is a lot (more or less 124%) faster with regards to AF than the Radeon Pro Duo. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 4090 is a better choice, by far. (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. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

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