Radeon RX 570 vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which comes with GPU clock speed of 1700 MHz, and 16384 MB of GDDR6 RAM set to run at 2000 MHz through a 256-bit bus. It also is made up of 3840 Stream Processors, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon RX 6800		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon RX 6800 should in theory be quite a bit faster than the Radeon RX 570 overall. (explain)

Radeon RX 6800		524288 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 294912 (129%)

Texel Rate

The Radeon RX 6800 will be quite a bit (about 173%) better at anisotropic filtering than the Radeon RX 570. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 570		149504 Mtexels/sec
	Difference: 258496 (173%)

Pixel Rate

The Radeon RX 6800 should be much (about 337%) better at AA than the Radeon RX 570, and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 570		37376 Mpixels/sec
	Difference: 125824 (337%)

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 data (in units of megabytes per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock 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 in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core speed of the card. 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.