GeForce 920M vs Radeon RX 480 4GB

Intro

Compare those specs to the Radeon RX 480 4GB, which uses a 14 nm design. AMD has set the core frequency at 1120 MHz. The GDDR5 memory is set to run at a frequency of 1750 MHz on this particular model. It features 2304 SPUs as well as 144 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX 480 4GB should be much faster than the GeForce 920M in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 214976 (1493%)

Texel Rate

The Radeon RX 480 4GB is much (about 428%) better at anisotropic filtering than the GeForce 920M. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 130752 (428%)

Pixel Rate

The Radeon RX 480 4GB should be quite a bit (approximately 370%) better at full screen anti-aliasing than the GeForce 920M, and should be capable of handling higher screen resolutions while still performing well. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 28208 (370%)

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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.