GeForce 920M vs Radeon R9 M380

Intro

Compare those specs to the Radeon R9 M380, which comes with a clock frequency of 1000 MHz and a GDDR5 memory frequency of 1500 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 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M380 should be 567% quicker than the GeForce 920M in general, because of its greater bandwidth. (explain)

Radeon R9 M380		96000 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 81600 (567%)

Texel Rate

The Radeon R9 M380 is much (approximately 31%) better at texture filtering than the GeForce 920M. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 9472 (31%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 M380 is superior to the GeForce 920M, and very much so. (explain)

Radeon R9 M380		16000 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 8368 (110%)

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 (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per 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 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 that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. 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 also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.