GeForce 930M vs Radeon R9 M380

Intro

Compare all of that to the Radeon R9 M380, which features a core clock speed of 1000 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M380 should be 567% quicker than the GeForce 930M overall, due to its greater bandwidth. (explain)

Radeon R9 M380		96000 MB/sec
GeForce 930M		14400 MB/sec
	Difference: 81600 (567%)

Texel Rate

The Radeon R9 M380 should be much (more or less 80%) more effective at texture filtering than the GeForce 930M. (explain)

Radeon R9 M380		40000 Mtexels/sec
GeForce 930M		22272 Mtexels/sec
	Difference: 17728 (80%)

Pixel Rate

The Radeon R9 M380 will be quite a bit (about 116%) better at anti-aliasing than the GeForce 930M, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon R9 M380		16000 Mpixels/sec
GeForce 930M		7424 Mpixels/sec
	Difference: 8576 (116%)

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 information (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.