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Radeon HD 5970 vs Radeon RX 550

Intro

The Radeon HD 5970 comes with a GPU clock speed of 725 MHz, and the 1024 MB of GDDR5 memory is set to run at 1000 MHz through a 256-bit bus. It also is made up of 1600 Stream Processors, 160 TAUs, and 64 Raster Operation Units.

Compare those specs to the Radeon RX 550, which has a clock frequency of 1100 MHz and a GDDR5 memory speed of 1750 MHz. It also features a 128-bit bus, and uses a 14 nm design. It is made up of 512 SPUs, 32 Texture Address Units, and 16 ROPs.

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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 in theory be much superior to the Radeon RX 550 overall. (explain)

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

Texel Rate

The Radeon HD 5970 is a lot (approximately 559%) faster with regards to AF than the Radeon RX 550. (explain)

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

Pixel Rate

The Radeon HD 5970 is much (approximately 427%) faster with regards to anti-aliasing than the Radeon RX 550, and also will be able to handle higher screen resolutions while still performing well. (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: Bandwidth is the largest amount of information (counted in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 processed in one second. This is worked out by multiplying the total amount of texture units by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

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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