GeForce GTX 970M vs Radeon R9 M365X

Intro

Compare those specifications to the Radeon R9 M365X, which features GPU clock speed of 925 MHz, and 4096 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is made up 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 33% quicker than the Radeon R9 M365X overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce GTX 970M will be quite a bit (approximately 100%) better at texture filtering than the Radeon R9 M365X. (explain)

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

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 970M is superior to the Radeon R9 M365X, by a large margin. (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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card 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 number of pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.