GeForce RTX 4090 vs Radeon VII

Intro

Compare all of that to the Radeon VII, which has a core clock speed of 1400 MHz and a HBM2 memory frequency of 1000 MHz. It also makes use of a 4096-bit bus, and uses a 7 nm design. It features 3840 SPUs, 240 Texture Address Units, and 64 Raster Operation 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

Theoretically, the Radeon VII should be a small bit faster than the GeForce RTX 4090 in general. (explain)

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

Texel Rate

The GeForce RTX 4090 is quite a bit (more or less 241%) more effective 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 running with a high resolution is important to you, then the GeForce RTX 4090 is the winner, 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: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.