Radeon HD 3470 512MB vs Radeon R9 M380

Intro

Compare those specifications to the Radeon R9 M380, which features a GPU core clock speed of 1000 MHz, and 4096 MB of GDDR5 memory running at 1500 MHz through a 128-bit bus. It also is made up of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M380 will be 216% quicker than the Radeon HD 3470 512MB in general, because of its greater data rate. (explain)

Radeon R9 M380		96000 MB/sec
Radeon HD 3470 512MB		30400 MB/sec
	Difference: 65600 (216%)

Texel Rate

The Radeon R9 M380 should be much (more or less 1150%) better at anisotropic filtering than the Radeon HD 3470 512MB. (explain)

Radeon R9 M380		40000 Mtexels/sec
Radeon HD 3470 512MB		3200 Mtexels/sec
	Difference: 36800 (1150%)

Pixel Rate

The Radeon R9 M380 is quite a bit (approximately 400%) faster with regards to anti-aliasing than the Radeon HD 3470 512MB, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M380		16000 Mpixels/sec
Radeon HD 3470 512MB		3200 Mpixels/sec
	Difference: 12800 (400%)

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 max amount of information (in units of MB per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.