GeForce RTX 3080 vs Radeon HD 6790

Intro

Compare those specifications to the Radeon HD 6790, which makes use of a 40 nm design. AMD has clocked the core speed at 840 MHz. The GDDR5 memory is set to run at a speed of 1050 MHz on this specific model. It features 800 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6790		150 Watts
GeForce RTX 3080		320 Watts
	Difference: 170 Watts (113%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 should be much faster than the Radeon HD 6790 overall. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon HD 6790		134400 MB/sec
	Difference: 644147 (479%)

Texel Rate

The GeForce RTX 3080 is a lot (approximately 1066%) faster with regards to texture filtering than the Radeon HD 6790. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon HD 6790		33600 Mtexels/sec
	Difference: 358080 (1066%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce RTX 3080 is the winner, and very much so. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon HD 6790		13440 Mpixels/sec
	Difference: 124800 (929%)

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 (measured in MB per second) that can be transported 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 it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.