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Radeon R9 270X vs Radeon RX 590

Intro

The Radeon R9 270X uses a 28 nm design. AMD has set the core frequency at 1000 MHz. The GDDR5 memory works at a speed of 1400 MHz on this particular model. It features 1280 SPUs along with 80 Texture Address Units and 32 Rasterization Operator Units.

Compare those specs to the Radeon RX 590, which has a core clock speed of 1469 MHz and a GDDR5 memory speed of 2000 MHz. It also makes use of a 256-bit bus, and makes use of a 12 nm design. It features 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

Display Graphs

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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, the Radeon RX 590 should perform much faster than the Radeon R9 270X in general. (explain)

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

Texel Rate

The Radeon RX 590 should be quite a bit (approximately 164%) better 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 a high resolution is important to you, then the Radeon RX 590 is a better choice, and very much so. (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 maximum amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling 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 that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

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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