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

Intro

Compare those specifications to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has clocked the core speed at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this card. It features 2048 SPUs along with 128 TAUs 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

As far as performance goes, the Radeon RX 470 4GB should theoretically be much superior to the Radeon HD 6570 (OEM) 1GB overall. (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 will be much (about 660%) faster with regards to anisotropic filtering 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 a high resolution is important to you, then the Radeon RX 470 4GB is a better choice, 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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.