GeForce RTX 4090 vs Radeon Pro Duo

Intro

Compare all that to the Radeon Pro Duo, which comes with core speeds of 1000 MHz on the GPU, and 500 MHz on the 4096 MB of HBM memory. It features 4096 SPUs as well as 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

The GeForce RTX 4090, in theory, should be a bit faster than the Radeon Pro Duo in general. (explain)

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

Texel Rate

The GeForce RTX 4090 will be a lot (more or less 124%) faster with regards to anisotropic 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 should be quite a bit (about 207%) more effective at AA than the Radeon Pro Duo, and will be able to handle higher resolutions without losing too much performance. (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 max amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many 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.