Radeon Pro Duo vs Radeon R9 M370X

Intro

Compare that to the Radeon R9 M370X, which features GPU clock speed of 800 MHz, and 2048 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon Pro Duo should perform much faster than the Radeon R9 M370X in general. (explain)

Radeon Pro Duo		1024000 MB/sec
Radeon R9 M370X		72000 MB/sec
	Difference: 952000 (1322%)

Texel Rate

The Radeon Pro Duo should be quite a bit (approximately 1500%) more effective at AF than the Radeon R9 M370X. (explain)

Radeon Pro Duo		512000 Mtexels/sec
Radeon R9 M370X		32000 Mtexels/sec
	Difference: 480000 (1500%)

Pixel Rate

The Radeon Pro Duo will be a lot (more or less 900%) more effective at FSAA than the Radeon R9 M370X, and able to handle higher screen resolutions without slowing down too much. (explain)

Radeon Pro Duo		128000 Mpixels/sec
Radeon R9 M370X		12800 Mpixels/sec
	Difference: 115200 (900%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.