Geforce GTX 780 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which comes with GPU core speed of 1175 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is comprised of 1024 SPUs, 64 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Geforce GTX 780		250 Watts
	Difference: 170 Watts (213%)

Memory Bandwidth

The Geforce GTX 780, in theory, should be a lot faster than the Radeon RX 560 overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 173696 (151%)

Texel Rate

The Geforce GTX 780 is quite a bit (approximately 120%) more effective at anisotropic filtering than the Radeon RX 560. (explain)

Geforce GTX 780		165696 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 90496 (120%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 780 is the winner, by far. (explain)

Geforce GTX 780		41424 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 22624 (120%)

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 megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.