Radeon R9 380 2G vs Radeon R9 M365X

Intro

Compare those specs to the Radeon R9 M365X, which features a GPU core clock speed of 925 MHz, and 4096 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also is comprised of 640 Stream Processors, 40 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 380 2G should be much faster than the Radeon R9 M365X in general. (explain)

Radeon R9 380 2G		182400 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 110400 (153%)

Texel Rate

The Radeon R9 380 2G is quite a bit (about 194%) faster with regards to anisotropic filtering than the Radeon R9 M365X. (explain)

Radeon R9 380 2G		108640 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 71640 (194%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 380 2G is the winner, by a large margin. (explain)

Radeon R9 380 2G		31040 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 16240 (110%)

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 maximum amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core clock 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.