Geforce GTX 770 vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which has 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 features 3840 Stream Processors, 240 Texture Address Units, and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
Radeon RX 6800		250 Watts
	Difference: 20 Watts (9%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6800 should be quite a bit faster than the Geforce GTX 770 overall. (explain)

Radeon RX 6800		524288 MB/sec
Geforce GTX 770		224384 MB/sec
	Difference: 299904 (134%)

Texel Rate

The Radeon RX 6800 is a lot (about 205%) better at AF than the Geforce GTX 770. (explain)

Radeon RX 6800		408000 Mtexels/sec
Geforce GTX 770		133888 Mtexels/sec
	Difference: 274112 (205%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6800 is superior to the Geforce GTX 770, and very much so. (explain)

Radeon RX 6800		163200 Mpixels/sec
Geforce GTX 770		33472 Mpixels/sec
	Difference: 129728 (388%)

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 largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.