GeForce GTX 980M vs Radeon R7 M265

Intro

Compare those specifications to the Radeon R7 M265, which has a clock speed of 725 MHz and a DDR3 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and makes use of a 28 nm design. It features 384 SPUs, 24 TAUs, and 8 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 980M		9476 points
Radeon R7 M265		3256 points
	Difference: 6220 (191%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the GeForce GTX 980M should be much faster than the Radeon R7 M265 overall. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon R7 M265		32000 MB/sec
	Difference: 96000 (300%)

Texel Rate

The GeForce GTX 980M is quite a bit (more or less 473%) better at texture filtering than the Radeon R7 M265. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon R7 M265		17400 Mtexels/sec
	Difference: 82248 (473%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 980M is a better choice, and very much so. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon R7 M265		5800 Mpixels/sec
	Difference: 60632 (1045%)

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 largest amount of data (in units of MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.