GeForce GTX 970M vs Radeon R9 M365X

Intro

Compare those specifications to the Radeon R9 M365X, which has a clock speed of 925 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It is comprised of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the GeForce GTX 970M should be quite a bit faster than the Radeon R9 M365X in general. (explain)

GeForce GTX 970M		96000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The GeForce GTX 970M will be much (about 100%) faster with regards to anisotropic filtering than the Radeon R9 M365X. (explain)

GeForce GTX 970M		73920 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 36920 (100%)

Pixel Rate

The GeForce GTX 970M should be a lot (more or less 200%) better at full screen anti-aliasing than the Radeon R9 M365X, and able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 970M		44352 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 29552 (200%)

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 maximum amount of information (measured in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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