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Radeon HD 5970 vs Radeon RX 550

Intro

The Radeon HD 5970 has a clock frequency of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and uses a 40 nm design. It is made up of 1600 SPUs, 160 Texture Address Units, and 64 Raster Operation Units.

Compare all of that to the Radeon RX 550, which features a GPU core clock speed of 1100 MHz, and 2048 MB of GDDR5 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 512 Stream Processors, 32 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
Radeon HD 5970 294 Watts
Difference: 244 Watts (488%)

Memory Bandwidth

Performance-wise, the Radeon HD 5970 should theoretically be much better than the Radeon RX 550 in general. (explain)

Radeon HD 5970 256000 MB/sec
Radeon RX 550 114688 MB/sec
Difference: 141312 (123%)

Texel Rate

The Radeon HD 5970 should be a lot (about 559%) more effective at AF than the Radeon RX 550. (explain)

Radeon HD 5970 232000 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 196800 (559%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 5970 is superior to the Radeon RX 550, by a large margin. (explain)

Radeon HD 5970 92800 Mpixels/sec
Radeon RX 550 17600 Mpixels/sec
Difference: 75200 (427%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Radeon HD 5970

Amazon.com

Check prices at:

Radeon RX 550

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 HD 5970 Radeon RX 550
Manufacturer AMD AMD
Year November 2009 April 2017
Code Name Hemlock XT Polaris 12
Memory 1024 MB (x2) 2048 MB
Core Speed 725 MHz (x2) 1100 MHz
Memory Speed 4000 MHz (x2) 7000 MHz
Power (Max TDP) 294 watts 50 watts
Bandwidth 256000 MB/sec 114688 MB/sec
Texel Rate 232000 Mtexels/sec 35200 Mtexels/sec
Pixel Rate 92800 Mpixels/sec 17600 Mpixels/sec
Unified Shaders 1600 (x2) 512
Texture Mapping Units 160 (x2) 32
Render Output Units 64 (x2) 16
Bus Type GDDR5 GDDR5
Bus Width 256-bit (x2) 128-bit
Fab Process 40 nm 14 nm
Transistors 2154 million 2200 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate 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 filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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Radeon HD 5970

Amazon.com

Check prices at:

Radeon RX 550

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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