Radeon RX 7900 XTX 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 works at a speed of 1000 MHz on this particular card. 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 XTX		355 Watts
	Difference: 60 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon VII should be a little bit faster than the Radeon RX 7900 XTX overall. (explain)

Radeon VII		1048576 MB/sec
Radeon RX 7900 XTX		983040 MB/sec
	Difference: 65536 (7%)

Texel Rate

The Radeon RX 7900 XTX should be a lot (more or less 112%) better at texture filtering than the Radeon VII. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 376320 (112%)

Pixel Rate

The Radeon RX 7900 XTX will be quite a bit (more or less 298%) more effective at AA than the Radeon VII, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 266560 (298%)

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 (in units of MB per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.