GeForce 930M vs Radeon R9 M385X

Intro

Compare all of that to the Radeon R9 M385X, which features GPU clock speed of 1100 MHz, and 4096 MB of GDDR5 memory set to run at 1500 MHz through a 128-bit bus. It also features 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M385X should theoretically be quite a bit better than the GeForce 930M overall. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 81600 (567%)

Texel Rate

The Radeon R9 M385X will be quite a bit (about 177%) better at texture filtering than the GeForce 930M. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 39328 (177%)

Pixel Rate

The Radeon R9 M385X is quite a bit (about 137%) better at AA than the GeForce 930M, and also will be able to handle higher screen resolutions better. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 10176 (137%)

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 maximum amount of data (in units of megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be applied in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 max fill rate.