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Radeon R9 M385X vs Radeon RX Vega 56

Intro

The Radeon R9 M385X comes with a GPU clock speed of 1100 MHz, and the 4096 MB of GDDR5 RAM is set to run at 1500 MHz through a 128-bit bus. It also is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Compare all that to the Radeon RX Vega 56, which features a clock frequency of 1156 MHz and a HBM2 memory speed of 1600 MHz. It also features a 2048-bit memory bus, and uses a 14 nm design. It is comprised of 3584 SPUs, 224 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX Vega 56 will be 337% quicker than the Radeon R9 M385X in general, because of its higher bandwidth. (explain)

Radeon RX Vega 56 419430 MB/sec
Radeon R9 M385X 96000 MB/sec
Difference: 323430 (337%)

Texel Rate

The Radeon RX Vega 56 is a lot (approximately 320%) better at AF than the Radeon R9 M385X. (explain)

Radeon RX Vega 56 258944 Mtexels/sec
Radeon R9 M385X 61600 Mtexels/sec
Difference: 197344 (320%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX Vega 56 is a better choice, by far. (explain)

Radeon RX Vega 56 73984 Mpixels/sec
Radeon R9 M385X 17600 Mpixels/sec
Difference: 56384 (320%)

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

Check prices at:

Radeon RX Vega 56

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 Vega 56
Manufacturer AMD AMD
Year 2015 September 2017
Code Name Bonaire Vega 10 XL
Memory 4096 MB 8192 MB
Core Speed 1100 MHz 1156 MHz
Memory Speed 6000 MHz 1600 MHz
Power (Max TDP) (Unknown) watts 210 watts
Bandwidth 96000 MB/sec 419430 MB/sec
Texel Rate 61600 Mtexels/sec 258944 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 73984 Mpixels/sec
Unified Shaders 896 3584
Texture Mapping Units 56 224
Render Output Units 16 64
Bus Type GDDR5 HBM2
Bus Width 128-bit 2048-bit
Fab Process 28 nm 14 nm
Transistors (Unknown) million 12500 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: Bandwidth is the max amount of data (counted in megabytes per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount 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 a second.

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

Display Prices

Hide Prices

Radeon R9 M385X

Amazon.com

Check prices at:

Radeon RX Vega 56

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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