Radeon HD 6570 (OEM) 2GB vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which makes use of a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 RAM works at a frequency of 1650 MHz on this specific card. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 2GB		50 Watts
Radeon RX 470		120 Watts
	Difference: 70 Watts (140%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 470 should be 230% quicker than the Radeon HD 6570 (OEM) 2GB overall, due to its higher data rate. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 147200 (230%)

Texel Rate

The Radeon RX 470 will be much (approximately 660%) more effective at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 102928 (660%)

Pixel Rate

The Radeon RX 470 should be quite a bit (about 470%) better at full screen anti-aliasing than the Radeon HD 6570 (OEM) 2GB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		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 maximum amount of information (counted in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling 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 video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.