Radeon RX 570 vs Radeon RX 590

Intro

Compare all that to the Radeon RX 590, which features a clock frequency of 1469 MHz and a GDDR5 memory speed of 2000 MHz. It also makes use of a 256-bit bus, and uses a 12 nm design. It is comprised of 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon RX 590		175 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

Performance-wise, the Radeon RX 590 should theoretically be just a bit better than the Radeon RX 570 overall. (explain)

Radeon RX 590		262144 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 32768 (14%)

Texel Rate

The Radeon RX 590 should be quite a bit (more or less 41%) more effective at anisotropic filtering than the Radeon RX 570. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon RX 570		149504 Mtexels/sec
	Difference: 62032 (41%)

Pixel Rate

The Radeon RX 590 should be quite a bit (approximately 26%) more effective at full screen anti-aliasing than the Radeon RX 570, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon RX 570		37376 Mpixels/sec
	Difference: 9632 (26%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 applied in one second. This figure is calculated by multiplying the total number of texture units of the card 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 most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's 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 rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.