Radeon HD 3470 512MB vs Radeon RX 470 4GB

Intro

Compare those specs to the Radeon RX 470 4GB, which has clock speeds of 926 MHz on the GPU, and 1650 MHz on the 4096 MB of GDDR5 RAM. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should theoretically be quite a bit better than the Radeon HD 3470 512MB overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 180800 (595%)

Texel Rate

The Radeon RX 470 4GB should be much (about 3604%) better at texture filtering than the Radeon HD 3470 512MB. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 115328 (3604%)

Pixel Rate

The Radeon RX 470 4GB is much (approximately 826%) more effective at anti-aliasing than the Radeon HD 3470 512MB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 26432 (826%)

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 MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.