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Radeon R9 285 vs Radeon RX 5500 XT

Intro

The Radeon R9 285 comes with a clock speed of 918 MHz and a GDDR5 memory speed of 1375 MHz. It also features a 256-bit memory bus, and uses a 28 nm design. It features 1792 SPUs, 112 TAUs, and 32 ROPs.

Compare all that to the Radeon RX 5500 XT, which comes with a clock frequency of 1717 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 7 nm design. It features 1408 SPUs, 88 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT 130 Watts
Radeon R9 285 190 Watts
Difference: 60 Watts (46%)

Memory Bandwidth

The Radeon RX 5500 XT should in theory be a lot faster than the Radeon R9 285 in general. (explain)

Radeon RX 5500 XT 229376 MB/sec
Radeon R9 285 176000 MB/sec
Difference: 53376 (30%)

Texel Rate

The Radeon RX 5500 XT should be quite a bit (about 47%) more effective at texture filtering than the Radeon R9 285. (explain)

Radeon RX 5500 XT 151096 Mtexels/sec
Radeon R9 285 102816 Mtexels/sec
Difference: 48280 (47%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 5500 XT is the winner, by a large margin. (explain)

Radeon RX 5500 XT 54944 Mpixels/sec
Radeon R9 285 29376 Mpixels/sec
Difference: 25568 (87%)

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 285

Amazon.com

Check prices at:

Radeon RX 5500 XT

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 285 Radeon RX 5500 XT
Manufacturer AMD AMD
Year September 2014 December 2019
Code Name Tonga PRO Navi 14 XTX
Memory 2048 MB 8192 MB
Core Speed 918 MHz 1717 MHz
Memory Speed 5500 MHz 3500 GB/s
Power (Max TDP) 190 watts 130 watts
Bandwidth 176000 MB/sec 229376 MB/sec
Texel Rate 102816 Mtexels/sec 151096 Mtexels/sec
Pixel Rate 29376 Mpixels/sec 54944 Mpixels/sec
Unified Shaders 1792 1408
Texture Mapping Units 112 88
Render Output Units 32 32
Bus Type GDDR5 GDDR6
Bus Width 256-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 5000 million 6400 million
Bus PCIe 3.0 x16 PCIe 4.0 ×16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.4 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in MB per second) that can be transported over 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 type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can 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 Render Output Units 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 output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon R9 285

Amazon.com

Check prices at:

Radeon RX 5500 XT

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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