Radeon R7 370 4G vs Radeon R9 M265X

Intro

Compare those specs to the Radeon R9 M265X, which comes with a clock speed of 575 MHz and a GDDR5 memory speed of 1125 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R7 370 4G will be 149% faster than the Radeon R9 M265X in general, because of its higher data rate. (explain)

Radeon R7 370 4G		179200 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 107200 (149%)

Texel Rate

The Radeon R7 370 4G should be much (more or less 171%) faster with regards to AF than the Radeon R9 M265X. (explain)

Radeon R7 370 4G		62400 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 39400 (171%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R7 370 4G is superior to the Radeon R9 M265X, by far. (explain)

Radeon R7 370 4G		31200 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 22000 (239%)

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 data (measured in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen 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 number of texture units by the core clock speed of the chip. The better this number, the better the 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 maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.