Radeon RX 6800 vs Radeon VII

Intro

Compare those specifications to the Radeon VII, which makes use of a 7 nm design. AMD has set the core speed at 1400 MHz. The HBM2 memory works at a speed of 1000 MHz on this model. It features 3840 SPUs along with 240 TAUs and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800		250 Watts
Radeon VII		295 Watts
	Difference: 45 Watts (18%)

Memory Bandwidth

Theoretically, the Radeon VII should be a lot faster than the Radeon RX 6800 in general. (explain)

Radeon VII		1048576 MB/sec
Radeon RX 6800		524288 MB/sec
	Difference: 524288 (100%)

Texel Rate

The Radeon RX 6800 should be much (more or less 21%) faster with regards to anisotropic filtering than the Radeon VII. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon VII		336000 Mtexels/sec
	Difference: 72000 (21%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6800 is the winner, by far. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon VII		89600 Mpixels/sec
	Difference: 73600 (82%)

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: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, 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 number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few 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.