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 set the core frequency at 1400 MHz. The HBM2 RAM runs at a speed of 1000 MHz on this specific 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

As far as performance goes, the Radeon VII should theoretically be just a bit better 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 much (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 (more or less 339%) faster with regards to AA than the Radeon VII, and should be capable of handling higher screen resolutions while still performing well. (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 maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If 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 high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total texture units of the card by the core 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 per second.

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