Geforce GTX 780 vs Radeon RX 590

Intro

Compare that to the Radeon RX 590, which has a clock speed of 1469 MHz and a GDDR5 memory speed of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Geforce GTX 780, in theory, should perform a little bit faster than the Radeon RX 590 overall. (explain)

Geforce GTX 780		288384 MB/sec
Radeon RX 590		262144 MB/sec
	Difference: 26240 (10%)

Texel Rate

The Radeon RX 590 is much (approximately 28%) better at texture filtering than the Geforce GTX 780. (explain)

Radeon RX 590		211536 Mtexels/sec
Geforce GTX 780		165696 Mtexels/sec
	Difference: 45840 (28%)

Pixel Rate

The Radeon RX 590 should be a little bit (more or less 13%) more effective at FSAA than the Geforce GTX 780, and will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 590		47008 Mpixels/sec
Geforce GTX 780		41424 Mpixels/sec
	Difference: 5584 (13%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 amount of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record 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 clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.