Radeon RX 480 4GB vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which features a clock speed of 1825 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 4608 SPUs, 288 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 150 Watts (100%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6800 XT should in theory be quite a bit superior to the Radeon RX 480 4GB in general. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 480 4GB		229376 MB/sec
	Difference: 294912 (129%)

Texel Rate

The Radeon RX 6800 XT will be quite a bit (more or less 226%) more effective at AF than the Radeon RX 480 4GB. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 480 4GB		161280 Mtexels/sec
	Difference: 364320 (226%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6800 XT is the winner, by a large margin. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 480 4GB		35840 Mpixels/sec
	Difference: 197760 (552%)

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 maximum amount of information (in units of MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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