GeForce 930M vs Radeon R9 M395X

Intro

Compare those specs to the Radeon R9 M395X, which uses a 28 nm design. AMD has set the core frequency at 723 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this particular model. It features 2048 SPUs as well as 128 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 M395X should theoretically be much superior to the GeForce 930M overall. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 145600 (1011%)

Texel Rate

The Radeon R9 M395X is a lot (approximately 316%) more effective at AF than the GeForce 930M. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 70272 (316%)

Pixel Rate

The Radeon R9 M395X will be a lot (approximately 212%) more effective at full screen anti-aliasing than the GeForce 930M, and capable of handling higher screen resolutions while still performing well. (explain)

Radeon R9 M395X		23136 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 15712 (212%)

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 largest amount of information (in units of MB per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units 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 applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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.