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Radeon R9 M385X vs Radeon RX Vega 56

Intro

The Radeon R9 M385X comes with a GPU core clock speed of 1100 MHz, and the 4096 MB of GDDR5 memory is set to run at 1500 MHz through a 128-bit bus. It also features 896 Stream Processors, 56 Texture Address Units, and 16 Raster Operation Units.

Compare those specifications to the Radeon RX Vega 56, which features core speeds of 1156 MHz on the GPU, and 1600 MHz on the 8192 MB of HBM2 RAM. It features 3584 SPUs as well as 224 Texture Address Units and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon RX Vega 56 will be 337% faster than the Radeon R9 M385X overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon RX Vega 56 will be a lot (approximately 320%) better at anisotropic filtering 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 high levels of AA is important to you, then the Radeon RX Vega 56 is the winner, and very much so. (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: Memory bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 are processed per second. This figure is calculated 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 video 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 most pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach 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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