Radeon RX 5700 vs Radeon RX 6800

Intro

Compare those specs to the Radeon RX 6800, which has a core clock speed of 1700 MHz and a GDDR6 memory frequency of 2000 MHz. It also makes use of a 256-bit bus, and uses a 7 nm design. It is made up 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 5700		180 Watts
Radeon RX 6800		250 Watts
	Difference: 70 Watts (39%)

Memory Bandwidth

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

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

Texel Rate

The Radeon RX 6800 is much (about 93%) better at texture filtering than the Radeon RX 5700. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 5700		210960 Mtexels/sec
	Difference: 197040 (93%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6800 is superior to the Radeon RX 5700, by far. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 5700		93760 Mpixels/sec
	Difference: 69440 (74%)

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 information (in units of megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.