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 frequency of 1500 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M385X, in theory, should be a lot faster 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 should be much (about 41%) better at AF than the GeForce GTX 960M. (explain)

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

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M385X is the winner, not by a very large margin though. (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: Memory bandwidth is the max amount of data (in units of megabytes per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines 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 rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.