GeForce GTX 780 Ti vs Radeon RX 6800

Intro

Compare all that to the Radeon RX 6800, which makes use of a 7 nm design. AMD has clocked the core speed at 1700 MHz. The GDDR6 RAM runs at a frequency of 2000 MHz on this card. It features 3840 SPUs along with 240 Texture Address Units and 96 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

The Radeon RX 6800, in theory, should be quite a bit faster than the GeForce GTX 780 Ti in general. (explain)

Radeon RX 6800		524288 MB/sec
GeForce GTX 780 Ti		336000 MB/sec
	Difference: 188288 (56%)

Texel Rate

The Radeon RX 6800 will be a lot (about 94%) faster with regards to texture filtering than the GeForce GTX 780 Ti. (explain)

Radeon RX 6800		408000 Mtexels/sec
GeForce GTX 780 Ti		210000 Mtexels/sec
	Difference: 198000 (94%)

Pixel Rate

The Radeon RX 6800 is quite a bit (approximately 289%) better at FSAA than the GeForce GTX 780 Ti, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 6800		163200 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 121200 (289%)

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 maximum amount of information (measured in megabytes per second) that can be transported over the external memory interface in one second. The number is calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the 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 texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.