Radeon Pro Duo vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which comes with core clock speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon Pro Duo should perform a lot faster than the Radeon R9 M385X in general. (explain)

Radeon Pro Duo		1024000 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 928000 (967%)

Texel Rate

The Radeon Pro Duo is much (about 731%) more effective at AF than the Radeon R9 M385X. (explain)

Radeon Pro Duo		512000 Mtexels/sec
Radeon R9 M385X		61600 Mtexels/sec
	Difference: 450400 (731%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon Pro Duo is a better choice, by a large margin. (explain)

Radeon Pro Duo		128000 Mpixels/sec
Radeon R9 M385X		17600 Mpixels/sec
	Difference: 110400 (627%)

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 data (measured in MB per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of 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 colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.