GeForce RTX 4090 vs Radeon VII

Intro

Compare all of that to the Radeon VII, which makes use of a 7 nm design. AMD has clocked the core frequency at 1400 MHz. The HBM2 memory works at a frequency of 1000 MHz on this model. It features 3840 SPUs as well as 240 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

In theory, the Radeon VII should be 1% quicker than the GeForce RTX 4090 in general, due to its higher data rate. (explain)

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

Texel Rate

The GeForce RTX 4090 will be quite a bit (about 241%) more effective at anisotropic filtering than the Radeon VII. (explain)

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

Pixel Rate

The GeForce RTX 4090 should be quite a bit (approximately 339%) faster with regards to full screen anti-aliasing than the Radeon VII, and also capable of handling higher resolutions more effectively. (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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.