Radeon RX 7900 XTX vs Radeon VII

Intro

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

Display Graphs

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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

As far as performance goes, the Radeon VII should in theory be just a bit better than the Radeon RX 7900 XTX in general. (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 (approximately 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

If using a high screen resolution is important to you, then the Radeon RX 7900 XTX is superior to the Radeon VII, and very much so. (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 largest amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.