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Radeon R9 M385X vs Radeon RX 460

Intro

The Radeon R9 M385X features a core clock frequency of 1100 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 128-bit memory bus, and makes use of a 28 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon RX 460, which comes with a core clock frequency of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 14 nm design. It features 896 SPUs, 56 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 should be a little bit faster than the Radeon R9 M385X in general. (explain)

Radeon RX 460 112000 MB/sec
Radeon R9 M385X 96000 MB/sec
Difference: 16000 (17%)

Texel Rate

The Radeon R9 M385X is a bit (approximately 1%) faster with regards to texture filtering than the Radeon RX 460. (explain)

Radeon R9 M385X 61600 Mtexels/sec
Radeon RX 460 61040 Mtexels/sec
Difference: 560 (1%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M385X is a better choice, but only just. (explain)

Radeon R9 M385X 17600 Mpixels/sec
Radeon RX 460 17440 Mpixels/sec
Difference: 160 (1%)

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 M385X

Amazon.com

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Radeon RX 460

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.

Specifications

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Model Radeon R9 M385X Radeon RX 460
Manufacturer AMD AMD
Year 2015 August 2016
Code Name Bonaire Polaris 11
Memory 4096 MB 4096 MB
Core Speed 1100 MHz 1090 MHz
Memory Speed 6000 MHz 7000 MHz
Power (Max TDP) (Unknown) watts 75 watts
Bandwidth 96000 MB/sec 112000 MB/sec
Texel Rate 61600 Mtexels/sec 61040 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 17440 Mpixels/sec
Unified Shaders 896 896
Texture Mapping Units 56 56
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors (Unknown) million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of 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 rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon R9 M385X

Amazon.com

Check prices at:

Radeon RX 460

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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