Radeon R7 360 vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which comes with a GPU core clock speed of 1100 MHz, and 4096 MB of GDDR5 RAM set to run at 1500 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 360 should theoretically be a little bit better than the Radeon R9 M385X overall. (explain)

Radeon R7 360		104000 MB/sec
Radeon R9 M385X		96000 MB/sec
	Difference: 8000 (8%)

Texel Rate

The Radeon R9 M385X is a lot (more or less 22%) more effective at texture filtering than the Radeon R7 360. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon R7 360		50400 Mtexels/sec
	Difference: 11200 (22%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M385X is the winner, but not by far. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon R7 360		16800 Mpixels/sec
	Difference: 800 (5%)

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 largest amount of information (in units of MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video 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 number of pixels the video card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.