Radeon R9 M365X vs Radeon R9 M385X

Intro

Compare all that to the Radeon R9 M385X, which has core speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 memory. It features 896 SPUs along with 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 M385X should be much faster than the Radeon R9 M365X overall. (explain)

Radeon R9 M385X		96000 MB/sec
Radeon R9 M365X		72000 MB/sec
	Difference: 24000 (33%)

Texel Rate

The Radeon R9 M385X will be much (more or less 66%) better at texture filtering than the Radeon R9 M365X. (explain)

Radeon R9 M385X		61600 Mtexels/sec
Radeon R9 M365X		37000 Mtexels/sec
	Difference: 24600 (66%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon R9 M385X is the winner, but it probably won't make a huge difference. (explain)

Radeon R9 M385X		17600 Mpixels/sec
Radeon R9 M365X		14800 Mpixels/sec
	Difference: 2800 (19%)

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 MB per second) that can be transferred past the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour 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 rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.