Radeon RX 470 4GB vs Radeon RX 590

Intro

Compare all that to the Radeon RX 590, which uses a 12 nm design. AMD has clocked the core frequency at 1469 MHz. The GDDR5 memory runs at a frequency of 2000 MHz on this specific card. It features 2304 SPUs as well as 144 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
Radeon RX 590		175 Watts
	Difference: 55 Watts (46%)

Memory Bandwidth

In theory, the Radeon RX 590 should be 24% quicker than the Radeon RX 470 4GB overall, because of its higher data rate. (explain)

Radeon RX 590		262144 MB/sec
Radeon RX 470 4GB		211200 MB/sec
	Difference: 50944 (24%)

Texel Rate

The Radeon RX 590 will be a lot (about 78%) more effective at texture filtering than the Radeon RX 470 4GB. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon RX 470 4GB		118528 Mtexels/sec
	Difference: 93008 (78%)

Pixel Rate

The Radeon RX 590 will be a lot (more or less 59%) more effective at full screen anti-aliasing than the Radeon RX 470 4GB, and should be capable of handling higher screen resolutions better. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon RX 470 4GB		29632 Mpixels/sec
	Difference: 17376 (59%)

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 max amount of data (in units of MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs 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 output rate also depends 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 max fill rate.