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Radeon R9 280 vs Radeon RX 590

Intro

The Radeon R9 280 comes with a clock frequency of 933 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 384-bit memory bus, and makes use of a 28 nm design. It is comprised of 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare all that to the Radeon RX 590, which features a core clock speed of 1469 MHz and a GDDR5 memory speed of 2000 MHz. It also features a 256-bit bus, and uses a 12 nm design. It is comprised of 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

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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

As far as performance goes, the Radeon RX 590 should theoretically be a bit superior to 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 is quite a bit (approximately 102%) more effective at texture filtering than the Radeon R9 280. (explain)

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

Pixel Rate

The Radeon RX 590 will be a lot (approximately 57%) more effective at FSAA than the Radeon R9 280, and capable of handling higher resolutions while still performing well. (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 maximum amount of data (counted in MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses 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 high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

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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