Radeon R9 M365X vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which has a clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M395X will be 122% faster than the Radeon R9 M365X overall, due to its higher data rate. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 88000 (122%)

Texel Rate

The Radeon R9 M395X is much (more or less 150%) better at AF than the Radeon R9 M365X. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 55544 (150%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M395X is the winner, by far. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 8336 (56%)

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 largest amount of information (measured in MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must 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 anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.