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Radeon R9 M365X vs Radeon R9 M380

Intro

The Radeon R9 M365X features a core clock frequency of 925 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Compare all of that to the Radeon R9 M380, which has GPU core speed of 1000 MHz, and 4096 MB of GDDR5 RAM running at 1500 MHz through a 128-bit bus. It also features 640 Stream Processors, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The Radeon R9 M380 should in theory perform quite a bit faster than the Radeon R9 M365X overall. (explain)

Radeon R9 M380 96000 MB/sec
Radeon R9 M365X 72000 MB/sec
Difference: 24000 (33%)

Texel Rate

The Radeon R9 M380 will be a bit (about 8%) more effective at texture filtering than the Radeon R9 M365X. (explain)

Radeon R9 M380 40000 Mtexels/sec
Radeon R9 M365X 37000 Mtexels/sec
Difference: 3000 (8%)

Pixel Rate

The Radeon R9 M380 should be just a bit (more or less 8%) better at FSAA than the Radeon R9 M365X, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R9 M380 16000 Mpixels/sec
Radeon R9 M365X 14800 Mpixels/sec
Difference: 1200 (8%)

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

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Radeon R9 M365X

Amazon.com

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Radeon R9 M380

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon R9 M365X Radeon R9 M380
Manufacturer AMD AMD
Year 2015 2015
Code Name Cape Verde Cape Verde
Memory 4096 MB 4096 MB
Core Speed 925 MHz 1000 MHz
Memory Speed 4500 MHz 6000 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 72000 MB/sec 96000 MB/sec
Texel Rate 37000 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 14800 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 640 640
Texture Mapping Units 40 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 applied per second. This is worked out by multiplying the total number of texture units of the card by the core 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 M365X

Amazon.com

Check prices at:

Radeon R9 M380

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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