Radeon RX 480 vs Radeon RX 6800

Intro

Compare those specs to the Radeon RX 6800, which has a core clock frequency of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also uses a 256-bit memory bus, and makes use of a 7 nm design. It is comprised of 3840 SPUs, 240 Texture Address Units, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480		150 Watts
Radeon RX 6800		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 should in theory be much superior to the Radeon RX 480 in general. (explain)

Radeon RX 6800		524288 MB/sec
Radeon RX 480		262144 MB/sec
	Difference: 262144 (100%)

Texel Rate

The Radeon RX 6800 should be a lot (more or less 153%) more effective at anisotropic filtering than the Radeon RX 480. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 480		161280 Mtexels/sec
	Difference: 246720 (153%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6800 is a better choice, and very much so. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 480		35840 Mpixels/sec
	Difference: 127360 (355%)

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 (in units of MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it must 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 AA, High Dynamic Range and higher screen resolutions.

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

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