Radeon R9 280X vs Radeon R9 M375

Intro

Compare all that to the Radeon R9 M375, which comes with a GPU core clock speed of 1015 MHz, and 4096 MB of DDR3 RAM set to run at 1100 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 280X should theoretically perform quite a bit faster than the Radeon R9 M375 overall. (explain)

Radeon R9 280X		288000 MB/sec
Radeon R9 M375		35200 MB/sec
	Difference: 252800 (718%)

Texel Rate

The Radeon R9 280X should be much (more or less 168%) better at anisotropic filtering than the Radeon R9 M375. (explain)

Radeon R9 280X		108800 Mtexels/sec
Radeon R9 M375		40600 Mtexels/sec
	Difference: 68200 (168%)

Pixel Rate

The Radeon R9 280X is quite a bit (about 67%) faster with regards to anti-aliasing than the Radeon R9 M375, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon R9 280X		27200 Mpixels/sec
Radeon R9 M375		16240 Mpixels/sec
	Difference: 10960 (67%)

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 past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are processed in one second. This figure 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 video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs 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 is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.