GeForce RTX 2080 SUPER vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which features a core clock frequency of 840 MHz and a GDDR5 memory speed of 1050 MHz. It also makes use of a 256-bit bus, and uses a 40 nm design. It is comprised of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce RTX 2080 SUPER		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 SUPER will be 278% quicker than the Radeon HD 6790 in general, because of its higher bandwidth. (explain)

GeForce RTX 2080 SUPER		507904 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 373504 (278%)

Texel Rate

The GeForce RTX 2080 SUPER will be a lot (more or less 843%) faster with regards to anisotropic filtering than the Radeon HD 6790. (explain)

GeForce RTX 2080 SUPER		316800 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 283200 (843%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce RTX 2080 SUPER is superior to the Radeon HD 6790, by a large margin. (explain)

GeForce RTX 2080 SUPER		105600 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 92160 (686%)

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 (in units of MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the 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 processed per second. This number is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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.