GeForce GTX 970M vs Radeon R9 M375X

Intro

Compare those specifications to the Radeon R9 M375X, which features GPU core speed of 1015 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GTX 970M should theoretically be much better than the Radeon R9 M375X overall. (explain)

GeForce GTX 970M		96000 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The GeForce GTX 970M will be quite a bit (about 82%) more effective at anisotropic filtering than the Radeon R9 M375X. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 33320 (82%)

Pixel Rate

The GeForce GTX 970M is much (approximately 173%) better at AA than the Radeon R9 M375X, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 28112 (173%)

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 max amount of information (measured in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core 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 output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.