Radeon RX 5700 vs Radeon RX 6800 XT

Intro

Compare all of that to the Radeon RX 6800 XT, which features a GPU core clock speed of 1825 MHz, and 16384 MB of GDDR6 RAM set to run at 2000 MHz through a 256-bit bus. It also is made up of 4608 SPUs, 288 Texture Address Units, and 128 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5700		180 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 120 Watts (67%)

Memory Bandwidth

In theory, the Radeon RX 6800 XT should perform a bit faster than the Radeon RX 5700 overall. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 5700		458752 MB/sec
	Difference: 65536 (14%)

Texel Rate

The Radeon RX 6800 XT will be much (more or less 149%) more effective at AF than the Radeon RX 5700. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 5700		210960 Mtexels/sec
	Difference: 314640 (149%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 6800 XT is superior to the Radeon RX 5700, and very much so. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 5700		93760 Mpixels/sec
	Difference: 139840 (149%)

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 information (in units of MB per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should 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 anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.