GeForce GTX 580 3GB vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which comes with core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 RAM. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

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

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

Texel Rate

The Radeon RX 470 should be a lot (about 140%) faster with regards to texture filtering than the GeForce GTX 580 3GB. (explain)

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

Pixel Rate

The GeForce GTX 580 3GB should be quite a bit (about 25%) faster with regards to AA than the Radeon RX 470, and capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 580 3GB		37056 Mpixels/sec
Radeon RX 470		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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of 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 applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.