GeForce GTX 960M vs Radeon R9 M385X

Intro

Compare those specifications to the Radeon R9 M385X, which comes with a core clock frequency of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also features a 128-bit bus, and uses a 28 nm design. It is made up of 896 SPUs, 56 TAUs, 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 R9 M385X should theoretically be much better than the GeForce GTX 960M in general. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 32000 (50%)

Texel Rate

The Radeon R9 M385X will be a lot (approximately 41%) faster with regards to anisotropic filtering than the GeForce GTX 960M. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 960M		43840 Mtexels/sec
	Difference: 17760 (41%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M385X is superior to the GeForce GTX 960M, though not by far. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 64 (0%)

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 data (measured in MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better 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 can be applied per second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher 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 most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.