GeForce GTX 970M vs Radeon R9 M375X

Intro

Compare that to the Radeon R9 M375X, which comes with clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 970M should in theory be quite a bit superior to 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 a lot (approximately 82%) more effective at texture filtering than the Radeon R9 M375X. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 970M is superior to the Radeon R9 M375X, by far. (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: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the video 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 number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.