GeForce GTX 580 3GB vs Radeon RX 470 4GB

Intro

Compare those specifications to the Radeon RX 470 4GB, which has core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB		120 Watts
GeForce GTX 580 3GB		244 Watts
	Difference: 124 Watts (103%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically be a small bit faster than the GeForce GTX 580 3GB in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
GeForce GTX 580 3GB		192384 MB/sec
	Difference: 18816 (10%)

Texel Rate

The Radeon RX 470 4GB will be much (about 140%) faster with regards to anisotropic filtering than the GeForce GTX 580 3GB. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
GeForce GTX 580 3GB		49408 Mtexels/sec
	Difference: 69120 (140%)

Pixel Rate

The GeForce GTX 580 3GB will be a lot (more or less 25%) faster with regards to full screen anti-aliasing than the Radeon RX 470 4GB, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 7424 (25%)

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 (counted in megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better this number, the better the video 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 that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.