Radeon HD 6790 vs Radeon RX 5700 XT 50th Anniversary Edition

Intro

Compare those specs to the Radeon RX 5700 XT 50th Anniversary Edition, which has a core clock frequency of 1680 MHz and a GDDR6 memory frequency of 1750 MHz. It also features a 256-bit memory bus, and uses a 7 nm design. It features 2560 SPUs, 160 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
Radeon RX 5700 XT 50th Anniversary Edition		235 Watts
	Difference: 85 Watts (57%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 5700 XT 50th Anniversary Edition should perform quite a bit faster than the Radeon HD 6790 overall. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		458752 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 324352 (241%)

Texel Rate

The Radeon RX 5700 XT 50th Anniversary Edition is much (about 700%) better at texture filtering than the Radeon HD 6790. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		268800 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 235200 (700%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5700 XT 50th Anniversary Edition is superior to the Radeon HD 6790, by far. (explain)

Radeon RX 5700 XT 50th Anniversary Edition		107520 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 94080 (700%)

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 maximum amount of data (counted in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 are applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.