GeForce GTX 580 3GB vs Radeon RX 460

Intro

Compare all that to the Radeon RX 460, which comes with clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 169 Watts (225%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 580 3GB is 72% faster than the Radeon RX 460 in general, because of its higher data rate. (explain)

GeForce GTX 580 3GB		192384 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 80384 (72%)

Texel Rate

The Radeon RX 460 is quite a bit (about 24%) more effective at anisotropic filtering than the GeForce GTX 580 3GB. (explain)

Radeon RX 460		61040 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 11632 (24%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 580 3GB is superior to the Radeon RX 460, by far. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon RX 460		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 largest amount of information (measured in megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.