GeForce GTX 970M vs Radeon R9 M395X

Intro

Compare all that to the Radeon R9 M395X, which features GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also is made up of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
Radeon R9 M395X		125 Watts
	Difference: 50 Watts (67%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M395X will be 67% quicker than the GeForce GTX 970M in general, due to its higher bandwidth. (explain)

Radeon R9 M395X		160000 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 64000 (67%)

Texel Rate

The Radeon R9 M395X is much (approximately 25%) better at AF than the GeForce GTX 970M. (explain)

Radeon R9 M395X		92544 Mtexels/sec
GeForce GTX 970M		73920 Mtexels/sec
	Difference: 18624 (25%)

Pixel Rate

The GeForce GTX 970M is much (approximately 92%) better at FSAA than the Radeon R9 M395X, and also will be able to handle higher resolutions better. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 21216 (92%)

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 data (measured in MB per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the 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 chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of 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.