GeForce RTX 3080 vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which comes with GPU clock speed of 1700 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also features 3840 SPUs, 240 TAUs, and 96 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800		250 Watts
GeForce RTX 3080		320 Watts
	Difference: 70 Watts (28%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 3080 should be a lot faster than the Radeon RX 6800 in general. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon RX 6800		524288 MB/sec
	Difference: 254259 (48%)

Texel Rate

The Radeon RX 6800 will be just a bit (approximately 4%) more effective at AF than the GeForce RTX 3080. (explain)

Radeon RX 6800		408000 Mtexels/sec
GeForce RTX 3080		391680 Mtexels/sec
	Difference: 16320 (4%)

Pixel Rate

The Radeon RX 6800 is just a bit (about 18%) faster with regards to anti-aliasing than the GeForce RTX 3080, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce RTX 3080		138240 Mpixels/sec
	Difference: 24960 (18%)

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 (in units of MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on 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.