Radeon HD 6790 vs Radeon RX 5600 XT

Intro

Compare that to the Radeon RX 5600 XT, which comes with a GPU core clock speed of 1375 MHz, and 6144 MB of GDDR6 memory running at 1500 MHz through a 192-bit bus. It also is made up of 2304 SPUs, 144 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
Radeon RX 5600 XT		160 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

The Radeon RX 5600 XT should theoretically perform a lot faster than the Radeon HD 6790 in general. (explain)

Radeon RX 5600 XT		344064 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 209664 (156%)

Texel Rate

The Radeon RX 5600 XT should be much (approximately 489%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

Radeon RX 5600 XT		198000 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 164400 (489%)

Pixel Rate

The Radeon RX 5600 XT should be a lot (approximately 555%) better at anti-aliasing than the Radeon HD 6790, and should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon RX 5600 XT		88000 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 74560 (555%)

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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the 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 that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.