Radeon RX 470 4GB vs Radeon RX 6800 XT

Intro

Compare those specs to the Radeon RX 6800 XT, which comes with a core clock frequency of 1825 MHz and a GDDR6 memory speed of 2000 MHz. It also features a 256-bit bus, and makes use of a 7 nm design. It features 4608 SPUs, 288 TAUs, and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 180 Watts (150%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 XT should be quite a bit faster than the Radeon RX 470 4GB in general. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 313088 (148%)

Texel Rate

The Radeon RX 6800 XT will be a lot (more or less 343%) faster with regards to AF than the Radeon RX 470 4GB. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 407072 (343%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6800 XT is a better choice, and very much so. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 203968 (688%)

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 max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number is worked out by multiplying the total amount of 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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