GeForce GTX 780 Ti vs Radeon RX 590

Intro

Compare those specifications to the Radeon RX 590, which comes with a GPU core clock speed of 1469 MHz, and 8192 MB of GDDR5 RAM set to run at 2000 MHz through a 256-bit bus. It also is made up of 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590		175 Watts
GeForce GTX 780 Ti		250 Watts
	Difference: 75 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 780 Ti should be much faster than the Radeon RX 590 in general. (explain)

GeForce GTX 780 Ti		336000 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 73856 (28%)

Texel Rate

The Radeon RX 590 will be a little bit (about 1%) more effective at texture filtering than the GeForce GTX 780 Ti. (explain)

Radeon RX 590		211536 Mtexels/sec
GeForce GTX 780 Ti		210000 Mtexels/sec
	Difference: 1536 (1%)

Pixel Rate

The Radeon RX 590 should be a little bit (about 12%) better at anti-aliasing than the GeForce GTX 780 Ti, and should be able to handle higher resolutions more effectively. (explain)

Radeon RX 590		47008 Mpixels/sec
GeForce GTX 780 Ti		42000 Mpixels/sec
	Difference: 5008 (12%)

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 MB per second) that can be transferred over the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at 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 can possibly write to the 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 card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.