Radeon HD 3470 512MB vs Radeon HD 6570 (OEM) 1GB

Intro

Compare that to the Radeon HD 6570 (OEM) 1GB, which has clock speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 480 SPUs along with 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon HD 3470 512MB should in theory be a little bit superior to the Radeon HD 6570 (OEM) 1GB in general. (explain)

Radeon HD 3470 512MB		30400 MB/sec
Radeon HD 6570 (OEM) 1GB		28800 MB/sec
	Difference: 1600 (6%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB will be much (more or less 388%) more effective at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

Radeon HD 6570 (OEM) 1GB		15600 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 12400 (388%)

Pixel Rate

The Radeon HD 6570 (OEM) 1GB is quite a bit (approximately 63%) more effective at AA than the Radeon HD 3470 512MB, and should be able to handle higher screen resolutions better. (explain)

Radeon HD 6570 (OEM) 1GB		5200 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 2000 (63%)

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 data (counted in megabytes per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.