GeForce GTX 980 Ti vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which features a GPU core clock speed of 1700 MHz, and 16384 MB of GDDR6 memory running at 2000 MHz through a 256-bit bus. It also is made up of 3840 Stream Processors, 240 Texture Address Units, and 96 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Performance-wise, the Radeon RX 6800 should theoretically be much better than the GeForce GTX 980 Ti overall. (explain)

Radeon RX 6800		524288 MB/sec
GeForce GTX 980 Ti		336000 MB/sec
	Difference: 188288 (56%)

Texel Rate

The Radeon RX 6800 is much (approximately 132%) faster with regards to anisotropic filtering than the GeForce GTX 980 Ti. (explain)

Radeon RX 6800		408000 Mtexels/sec
GeForce GTX 980 Ti		176000 Mtexels/sec
	Difference: 232000 (132%)

Pixel Rate

The Radeon RX 6800 is a lot (approximately 70%) more effective at anti-aliasing than the GeForce GTX 980 Ti, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce GTX 980 Ti		96000 Mpixels/sec
	Difference: 67200 (70%)

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 transferred over the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.