GeForce GTX 950M vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which makes use of a 28 nm design. AMD has clocked the core speed at 1100 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular card. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M385X should in theory be much superior to the GeForce GTX 950M in general. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GTX 950M		32000 MB/sec
	Difference: 64000 (200%)

Texel Rate

The Radeon R9 M385X will be quite a bit (more or less 68%) more effective at texture filtering than the GeForce GTX 950M. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GTX 950M		36560 Mtexels/sec
	Difference: 25040 (68%)

Pixel Rate

The Radeon R9 M385X should be a little bit (more or less 20%) more effective at FSAA than the GeForce GTX 950M, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GTX 950M		14624 Mpixels/sec
	Difference: 2976 (20%)

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 (measured in MB per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.