Radeon R9 380X vs Radeon R9 M375X

Intro

Compare all that to the Radeon R9 M375X, which features core clock speeds of 1015 MHz on the GPU, and 1125 MHz on the 4096 MB of GDDR5 memory. It features 640 SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 380X, in theory, should perform a lot faster than the Radeon R9 M375X overall. (explain)

Radeon R9 380X		182400 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 110400 (153%)

Texel Rate

The Radeon R9 380X is much (more or less 206%) better at texture filtering than the Radeon R9 M375X. (explain)

Radeon R9 380X		124160 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 83560 (206%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380X is the winner, by far. (explain)

Radeon R9 380X		31040 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 14800 (91%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher the texel rate, the better the card will be at 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 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.