GeForce 940M vs Radeon RX 550

Intro

Compare all of that to the Radeon RX 550, which comes with a clock frequency of 1100 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit memory bus, and uses a 14 nm design. It features 512 SPUs, 32 Texture Address Units, 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

Radeon RX 550		3507 points
GeForce 940M		1740 points
	Difference: 1767 (102%)

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon RX 550, in theory, should be much faster than the GeForce 940M overall. (explain)

Radeon RX 550		114688 MB/sec
GeForce 940M		16000 MB/sec
	Difference: 98688 (617%)

Texel Rate

The Radeon RX 550 is quite a bit (approximately 37%) faster with regards to AF than the GeForce 940M. (explain)

Radeon RX 550		35200 Mtexels/sec
GeForce 940M		25728 Mtexels/sec
	Difference: 9472 (37%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 550 is a better choice, by a large margin. (explain)

Radeon RX 550		17600 Mpixels/sec
GeForce 940M		8576 Mpixels/sec
	Difference: 9024 (105%)

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 (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of 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 most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.