Radeon HD 6570 (OEM) 2GB vs Radeon RX 480 4GB

Intro

Compare those specs to the Radeon RX 480 4GB, which has clock speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2304 SPUs along with 144 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 480 4GB		150 Watts
	Difference: 100 Watts (200%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 4GB should be quite a bit faster than the Radeon HD 6570 (OEM) 2GB in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon HD 6570 (OEM) 2GB		64000 MB/sec
	Difference: 165376 (258%)

Texel Rate

The Radeon RX 480 4GB should be quite a bit (more or less 934%) better at AF than the Radeon HD 6570 (OEM) 2GB. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon HD 6570 (OEM) 2GB		15600 Mtexels/sec
	Difference: 145680 (934%)

Pixel Rate

The Radeon RX 480 4GB will be quite a bit (more or less 589%) more effective at AA than the Radeon HD 6570 (OEM) 2GB, and also will be able to handle higher resolutions without slowing down too much. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon HD 6570 (OEM) 2GB		5200 Mpixels/sec
	Difference: 30640 (589%)

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 moved across the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.