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Radeon Pro Duo vs Radeon R9 280

Intro

The Radeon Pro Duo makes use of a 28 nm design. AMD has set the core frequency at 1000 MHz. The HBM RAM is set to run at a frequency of 500 MHz on this card. It features 4096 SPUs along with 256 TAUs and 64 Rasterization Operator Units.

Compare those specifications to the Radeon R9 280, which features core speeds of 933 MHz on the GPU, and 1250 MHz on the 3072 MB of GDDR5 memory. It features 1792 SPUs along with 112 Texture Address Units and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon Pro Duo 27167 points
Radeon R9 280 7961 points
Difference: 19206 (241%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 280 250 Watts
Radeon Pro Duo 350 Watts
Difference: 100 Watts (40%)

Memory Bandwidth

Theoretically, the Radeon Pro Duo should be quite a bit faster than the Radeon R9 280 in general. (explain)

Radeon Pro Duo 1024000 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 784000 (327%)

Texel Rate

The Radeon Pro Duo will be much (more or less 390%) faster with regards to texture filtering than the Radeon R9 280. (explain)

Radeon Pro Duo 512000 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 407504 (390%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon Pro Duo is a better choice, by a large margin. (explain)

Radeon Pro Duo 128000 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 98144 (329%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon Pro Duo

Amazon.com

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Radeon R9 280

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 Pro Duo Radeon R9 280
Manufacturer AMD AMD
Year April 2016 March 2014
Code Name Fiji XT Tahiti Pro
Memory 4096 MB (x2) 3072 MB
Core Speed 1000 MHz (x2) 933 MHz
Memory Speed 500 MHz (x2) 5000 MHz
Power (Max TDP) 350 watts 250 watts
Bandwidth 1024000 MB/sec 240000 MB/sec
Texel Rate 512000 Mtexels/sec 104496 Mtexels/sec
Pixel Rate 128000 Mpixels/sec 29856 Mpixels/sec
Unified Shaders 4096 (x2) 1792
Texture Mapping Units 256 (x2) 112
Render Output Units 64 (x2) 32
Bus Type HBM GDDR5
Bus Width 4096-bit (x2) 384-bit
Fab Process 28 nm 28 nm
Transistors 8900 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.2
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the 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 are applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon Pro Duo

Amazon.com

Check prices at:

Radeon R9 280

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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