GeForce GTX 580 vs Radeon RX 460 2GB

Intro

Compare those specs to the Radeon RX 460 2GB, which has core clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
GeForce GTX 580		244 Watts
	Difference: 169 Watts (225%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 should be 72% quicker than the Radeon RX 460 2GB in general, due to its higher bandwidth. (explain)

GeForce GTX 580		192384 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 80384 (72%)

Texel Rate

The Radeon RX 460 2GB is a lot (more or less 24%) more effective at texture filtering than the GeForce GTX 580. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
GeForce GTX 580		49408 Mtexels/sec
	Difference: 11632 (24%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 580 is superior to the Radeon RX 460 2GB, by a large margin. (explain)

GeForce GTX 580		37056 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 19616 (112%)

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 maximum amount of data (in units of megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number 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 fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.