GeForce RTX 3090 vs Radeon VII

Intro

Compare those specifications to the Radeon VII, which features GPU core speed of 1400 MHz, and 16384 MB of HBM2 memory set to run at 1000 MHz through a 4096-bit bus. It also is comprised of 3840 Stream Processors, 240 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon VII		295 Watts
GeForce RTX 3090		350 Watts
	Difference: 55 Watts (19%)

Memory Bandwidth

In theory, the Radeon VII will be 9% quicker than the GeForce RTX 3090 in general, due to its greater bandwidth. (explain)

Radeon VII		1048576 MB/sec
GeForce RTX 3090		958668 MB/sec
	Difference: 89908 (9%)

Texel Rate

The GeForce RTX 3090 will be much (approximately 36%) more effective at texture filtering than the Radeon VII. (explain)

GeForce RTX 3090		457560 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 121560 (36%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3090 is superior to the Radeon VII, by far. (explain)

GeForce RTX 3090		156240 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 66640 (74%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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