GeForce GTX 980M vs Radeon RX 550

Intro

Compare those specifications to the Radeon RX 550, which makes use of a 14 nm design. AMD has clocked the core frequency at 1100 MHz. The GDDR5 memory works at a speed of 1750 MHz on this model. It features 512 SPUs along with 32 TAUs and 16 ROPs.

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 RX 550		3507 points
	Difference: 5969 (170%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550		50 Watts
GeForce GTX 980M		100 Watts
	Difference: 50 Watts (100%)

Memory Bandwidth

The GeForce GTX 980M should theoretically be a little bit faster than the Radeon RX 550 in general. (explain)

GeForce GTX 980M		128000 MB/sec
Radeon RX 550		114688 MB/sec
	Difference: 13312 (12%)

Texel Rate

The GeForce GTX 980M should be quite a bit (approximately 183%) more effective at AF than the Radeon RX 550. (explain)

GeForce GTX 980M		99648 Mtexels/sec
Radeon RX 550		35200 Mtexels/sec
	Difference: 64448 (183%)

Pixel Rate

The GeForce GTX 980M should be much (approximately 277%) better at anti-aliasing than the Radeon RX 550, and should be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 980M		66432 Mpixels/sec
Radeon RX 550		17600 Mpixels/sec
	Difference: 48832 (277%)

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 (in units of MB per second) that can be moved past the external memory interface in one second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.