Radeon R9 270 vs Radeon R9 M375X

Intro

Compare those specs to the Radeon R9 M375X, which has a GPU core clock speed of 1015 MHz, and 4096 MB of GDDR5 memory running at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 270 will be 149% faster than the Radeon R9 M375X in general, due to its higher bandwidth. (explain)

Radeon R9 270		179200 MB/sec
Radeon R9 M375X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R9 270 should be much (approximately 77%) more effective at texture filtering than the Radeon R9 M375X. (explain)

Radeon R9 270		72000 Mtexels/sec
Radeon R9 M375X		40600 Mtexels/sec
	Difference: 31400 (77%)

Pixel Rate

The Radeon R9 270 will be much (approximately 77%) better at FSAA than the Radeon R9 M375X, and also should be able to handle higher resolutions more effectively. (explain)

Radeon R9 270		28800 Mpixels/sec
Radeon R9 M375X		16240 Mpixels/sec
	Difference: 12560 (77%)

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 MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.