GeForce GTX 960M vs Radeon R9 M390X

Intro

Compare that to the Radeon R9 M390X, which uses a 28 nm design. AMD has set the core speed at 723 MHz. The GDDR5 memory works at a frequency of 1250 MHz on this specific card. It features 2048 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 960M		65 Watts
Radeon R9 M390X		125 Watts
	Difference: 60 Watts (92%)

Memory Bandwidth

The Radeon R9 M390X, in theory, should perform a lot faster than the GeForce GTX 960M in general. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GTX 960M		64000 MB/sec
	Difference: 96000 (150%)

Texel Rate

The Radeon R9 M390X is much (more or less 111%) faster with regards to anisotropic filtering than the GeForce GTX 960M. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GTX 960M		43840 Mtexels/sec
	Difference: 48704 (111%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M390X is a better choice, and very much so. (explain)

Radeon R9 M390X		23136 Mpixels/sec
GeForce GTX 960M		17536 Mpixels/sec
	Difference: 5600 (32%)

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 data (measured in MB per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total texture units of the card by the core clock 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 maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.