Radeon R9 285 vs Radeon R9 M365X

Intro

Compare that to the Radeon R9 M365X, which comes with a core clock frequency of 925 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

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R9 285 should theoretically be much superior to the Radeon R9 M365X in general. (explain)

Radeon R9 285		176000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 104000 (144%)

Texel Rate

The Radeon R9 285 will be quite a bit (more or less 178%) faster with regards to anisotropic filtering than the Radeon R9 M365X. (explain)

Radeon R9 285		102816 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 65816 (178%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 285 is the winner, by far. (explain)

Radeon R9 285		29376 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 14576 (98%)

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 MB per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 applied in one second. This number is worked out by multiplying the total 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the core speed of the card. 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 fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.