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Radeon R9 270X vs Radeon RX 590

Intro

The Radeon R9 270X makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 memory works at a frequency of 1400 MHz on this particular model. It features 1280 SPUs as well as 80 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Radeon RX 590, which has GPU core speed of 1469 MHz, and 8192 MB of GDDR5 memory running at 2000 MHz through a 256-bit bus. It also is made up of 2304 Stream Processors, 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 270X 180 Watts
Difference: 5 Watts (3%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 590 is 46% quicker than the Radeon R9 270X in general, due to its greater data rate. (explain)

Radeon RX 590 262144 MB/sec
Radeon R9 270X 179200 MB/sec
Difference: 82944 (46%)

Texel Rate

The Radeon RX 590 should be much (about 164%) more effective at anisotropic filtering than the Radeon R9 270X. (explain)

Radeon RX 590 211536 Mtexels/sec
Radeon R9 270X 80000 Mtexels/sec
Difference: 131536 (164%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 590 is superior to the Radeon R9 270X, by far. (explain)

Radeon RX 590 47008 Mpixels/sec
Radeon R9 270X 32000 Mpixels/sec
Difference: 15008 (47%)

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 270X

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 270X Radeon RX 590
Manufacturer AMD AMD
Year October 2013 November 2018
Code Name Curacao XT Polaris 30
Memory 2048 MB 8192 MB
Core Speed 1000 MHz 1469 MHz
Memory Speed 5600 MHz 8000 MHz
Power (Max TDP) 180 watts 175 watts
Bandwidth 179200 MB/sec 262144 MB/sec
Texel Rate 80000 Mtexels/sec 211536 Mtexels/sec
Pixel Rate 32000 Mpixels/sec 47008 Mpixels/sec
Unified Shaders 1280 2304
Texture Mapping Units 80 144
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 12 nm
Transistors 2800 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: Bandwidth is the max amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

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

Display Prices

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Radeon R9 270X

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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