Radeon HD 5570 vs Radeon RX 470 4GB

Intro

Compare all of that to the Radeon RX 470 4GB, which has a core clock frequency of 926 MHz and a GDDR5 memory speed of 1650 MHz. It also features a 256-bit bus, and makes use of a 14 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570		43 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 77 Watts (179%)

Memory Bandwidth

In theory, the Radeon RX 470 4GB will be 633% quicker than the Radeon HD 5570 overall, because of its higher bandwidth. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 5570		28800 MB/sec
	Difference: 182400 (633%)

Texel Rate

The Radeon RX 470 4GB should be quite a bit (about 812%) faster with regards to anisotropic filtering than the Radeon HD 5570. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 5570		13000 Mtexels/sec
	Difference: 105528 (812%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 470 4GB is the winner, and very much so. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 5570		5200 Mpixels/sec
	Difference: 24432 (470%)

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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few 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.