Radeon HD 6570 (OEM) 1GB vs Radeon RX 470 4GB

Intro

Compare all that to the Radeon RX 470 4GB, which comes with clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB		50 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 70 Watts (140%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should theoretically be a lot superior to the Radeon HD 6570 (OEM) 1GB in general. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 182400 (633%)

Texel Rate

The Radeon RX 470 4GB is a lot (about 660%) better at AF than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
	Difference: 102928 (660%)

Pixel Rate

If running with high levels of AA 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 6570 (OEM) 1GB		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 max amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.