GeForce GTX 780 Ti vs Radeon RX 590

Intro

Compare those specs to the Radeon RX 590, which makes use of a 12 nm design. AMD has clocked the core speed at 1469 MHz. The GDDR5 memory runs at a frequency of 2000 MHz on this particular card. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

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 is 28% quicker than the Radeon RX 590 in general, because of its higher bandwidth. (explain)

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

Texel Rate

The Radeon RX 590 is a bit (about 1%) faster with regards to anisotropic 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

If running with high levels of AA is important to you, then the Radeon RX 590 is a better choice, though only just barely. (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 max amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.