GeForce RTX 4090 vs Radeon Pro Duo

Intro

Compare all of that to the Radeon Pro Duo, which has a clock frequency of 1000 MHz and a HBM memory frequency of 500 MHz. It also uses a 4096-bit bus, and makes use of a 28 nm design. It is made up of 4096 SPUs, 256 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

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 is 2% faster than the Radeon Pro Duo in general, due to 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 will be much (approximately 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

If using a high screen resolution 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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. 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 quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.