GeForce RTX 4090 vs Radeon VII

Intro

Compare those specifications to the Radeon VII, which makes use of a 7 nm design. AMD has clocked the core frequency at 1400 MHz. The HBM2 memory runs at a speed of 1000 MHz on this specific card. It features 3840 SPUs as well as 240 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon VII		295 Watts
GeForce RTX 4090		450 Watts
	Difference: 155 Watts (53%)

Memory Bandwidth

Performance-wise, the Radeon VII should in theory be a bit superior to the GeForce RTX 4090 overall. (explain)

Radeon VII		1048576 MB/sec
GeForce RTX 4090		1042432 MB/sec
	Difference: 6144 (1%)

Texel Rate

The GeForce RTX 4090 should be a lot (more or less 241%) better at texture filtering than the Radeon VII. (explain)

GeForce RTX 4090		1144320 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 808320 (241%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 4090 is superior to the Radeon VII, by a large margin. (explain)

GeForce RTX 4090		393360 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 303760 (339%)

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 max amount of data (counted in megabytes per second) that can be transferred across 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 it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at 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 write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. 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 rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.