Radeon HD 6790 vs Radeon RX 6500 XT

Intro

Compare that to the Radeon RX 6500 XT, which features core speeds of 2200 MHz on the GPU, and 2250 MHz on the 4096 MB of GDDR6 RAM. It features 1024 SPUs along with 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon HD 6790		150 Watts
	Difference: 43 Watts (40%)

Memory Bandwidth

In theory, the Radeon RX 6500 XT should be a small bit faster than the Radeon HD 6790 overall. (explain)

Radeon RX 6500 XT		147456 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 13056 (10%)

Texel Rate

The Radeon RX 6500 XT should be much (approximately 319%) more effective at anisotropic filtering than the Radeon HD 6790. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 107200 (319%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6500 XT is a better choice, by a large margin. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 56960 (424%)

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 (counted in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is worked out by multiplying the total texture units of the card by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a 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 - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.