Radeon R7 360 vs Radeon R9 M265X

Intro

Compare those specifications to the Radeon R9 M265X, which features a clock frequency of 575 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 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 R7 360 will be 44% quicker than the Radeon R9 M265X overall, due to its greater bandwidth. (explain)

Radeon R7 360		104000 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 32000 (44%)

Texel Rate

The Radeon R7 360 should be a lot (about 119%) faster with regards to AF than the Radeon R9 M265X. (explain)

Radeon R7 360		50400 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 27400 (119%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R7 360 is the winner, by far. (explain)

Radeon R7 360		16800 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 7600 (83%)

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 data (measured in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.