Radeon R9 270 vs Radeon R9 M370X

Intro

Compare those specifications to the Radeon R9 M370X, which comes with core clock speeds of 800 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. 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

In theory, the Radeon R9 270 should be 149% faster than the Radeon R9 M370X overall, because of its greater bandwidth. (explain)

Radeon R9 270		179200 MB/sec
Radeon R9 M370X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R9 270 will be a lot (approximately 125%) more effective at AF than the Radeon R9 M370X. (explain)

Radeon R9 270		72000 Mtexels/sec
Radeon R9 M370X		32000 Mtexels/sec
	Difference: 40000 (125%)

Pixel Rate

The Radeon R9 270 will be quite a bit (more or less 125%) more effective at anti-aliasing than the Radeon R9 M370X, and able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 270		28800 Mpixels/sec
Radeon R9 M370X		12800 Mpixels/sec
	Difference: 16000 (125%)

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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its 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 - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.