Radeon RX 7900 XT vs Radeon VII

Intro

Compare those specs to the Radeon VII, which features clock speeds of 1400 MHz on the GPU, and 1000 MHz on the 16384 MB of HBM2 memory. 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
Radeon RX 7900 XT		300 Watts
	Difference: 5 Watts (2%)

Memory Bandwidth

The Radeon VII, in theory, should be quite a bit faster than the Radeon RX 7900 XT overall. (explain)

Radeon VII		1048576 MB/sec
Radeon RX 7900 XT		819200 MB/sec
	Difference: 229376 (28%)

Texel Rate

The Radeon RX 7900 XT should be a lot (about 50%) faster with regards to anisotropic filtering than the Radeon VII. (explain)

Radeon RX 7900 XT		504000 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 168000 (50%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 7900 XT is superior to the Radeon VII, by a large margin. (explain)

Radeon RX 7900 XT		288000 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 198400 (221%)

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 information (measured in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better 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 number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.