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Radeon R9 280 vs Radeon RX 590

Intro

The Radeon R9 280 makes use of a 28 nm design. AMD has clocked the core speed at 933 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this model. It features 1792 SPUs as well as 112 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon RX 590, which comes with core speeds of 1469 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 590 175 Watts
Radeon R9 280 250 Watts
Difference: 75 Watts (43%)

Memory Bandwidth

Theoretically, the Radeon RX 590 should be just a bit faster than the Radeon R9 280 in general. (explain)

Radeon RX 590 262144 MB/sec
Radeon R9 280 240000 MB/sec
Difference: 22144 (9%)

Texel Rate

The Radeon RX 590 should be a lot (about 102%) faster with regards to anisotropic filtering than the Radeon R9 280. (explain)

Radeon RX 590 211536 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 107040 (102%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 590 is the winner, and very much so. (explain)

Radeon RX 590 47008 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 17152 (57%)

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 280

Amazon.com

Check prices at:

Radeon RX 590

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 280 Radeon RX 590
Manufacturer AMD AMD
Year March 2014 November 2018
Code Name Tahiti Pro Polaris 30
Memory 3072 MB 8192 MB
Core Speed 933 MHz 1469 MHz
Memory Speed 5000 MHz 8000 MHz
Power (Max TDP) 250 watts 175 watts
Bandwidth 240000 MB/sec 262144 MB/sec
Texel Rate 104496 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 29856 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 1792 2304
Texture Mapping Units 112 144
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit
Fab Process 28 nm 12 nm
Transistors 4313 million 5700 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units by the core 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon R9 280

Amazon.com

Check prices at:

Radeon RX 590

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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