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Radeon R9 280 vs Radeon RX 5500 XT

Intro

The Radeon R9 280 comes with a GPU clock speed of 933 MHz, and the 3072 MB of GDDR5 memory is set to run at 1250 MHz through a 384-bit bus. It also is comprised of 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

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

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT 130 Watts
Radeon R9 280 250 Watts
Difference: 120 Watts (92%)

Memory Bandwidth

The Radeon R9 280, in theory, should perform just a bit faster than the Radeon RX 5500 XT overall. (explain)

Radeon R9 280 240000 MB/sec
Radeon RX 5500 XT 229376 MB/sec
Difference: 10624 (5%)

Texel Rate

The Radeon RX 5500 XT will be a lot (about 45%) more effective at texture filtering than the Radeon R9 280. (explain)

Radeon RX 5500 XT 151096 Mtexels/sec
Radeon R9 280 104496 Mtexels/sec
Difference: 46600 (45%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 5500 XT is the winner, and very much so. (explain)

Radeon RX 5500 XT 54944 Mpixels/sec
Radeon R9 280 29856 Mpixels/sec
Difference: 25088 (84%)

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 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 280 Radeon RX 5500 XT
Manufacturer AMD AMD
Year March 2014 December 2019
Code Name Tahiti Pro Navi 14 XTX
Memory 3072 MB 8192 MB
Core Speed 933 MHz 1717 MHz
Memory Speed 5000 MHz 3500 GB/s
Power (Max TDP) 250 watts 130 watts
Bandwidth 240000 MB/sec 229376 MB/sec
Texel Rate 104496 Mtexels/sec 151096 Mtexels/sec
Pixel Rate 29856 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 384-bit 128-bit
Fab Process 28 nm 7 nm
Transistors 4313 million 6400 million
Bus PCIe 3.0 x16 PCIe 4.0 ×16
DirectX Version DirectX 11.2 DirectX 12
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster 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 amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon R9 280

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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