GeForce GTX 980M vs Radeon R9 M370X

Intro

Compare that to the Radeon R9 M370X, which comes with a clock frequency of 800 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GTX 980M should in theory be a lot better than the Radeon R9 M370X in general. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon R9 M370X		72000 MB/sec
	Difference: 56000 (78%)

Texel Rate

The GeForce GTX 980M is much (about 211%) more effective at anisotropic filtering than the Radeon R9 M370X. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon R9 M370X		32000 Mtexels/sec
	Difference: 67648 (211%)

Pixel Rate

The GeForce GTX 980M should be much (approximately 419%) faster with regards to anti-aliasing than the Radeon R9 M370X, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R9 M370X		12800 Mpixels/sec
	Difference: 53632 (419%)

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 megabytes per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.