Radeon HD 6570 (OEM) 1GB vs Radeon RX 590

Intro

Compare that to the Radeon RX 590, which comes with GPU clock speed of 1469 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also is comprised of 2304 SPUs, 144 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
Radeon RX 590		175 Watts
	Difference: 125 Watts (250%)

Memory Bandwidth

Theoretically, the Radeon RX 590 should be much faster than the Radeon HD 6570 (OEM) 1GB in general. (explain)

Radeon RX 590		262144 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 233344 (810%)

Texel Rate

The Radeon RX 590 will be much (more or less 1256%) more effective at texture filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon RX 590		211536 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 195936 (1256%)

Pixel Rate

The Radeon RX 590 should be quite a bit (approximately 804%) faster with regards to AA than the Radeon HD 6570 (OEM) 1GB, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 590		47008 Mpixels/sec
Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
	Difference: 41808 (804%)

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 max amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.