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Radeon HD 5550 vs Radeon R9 M375X

Intro

The Radeon HD 5550 makes use of a 40 nm design. AMD has clocked the core frequency at 550 MHz. The DDR2 memory runs at a frequency of 400 MHz on this specific model. It features 320(64x5) SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare that to the Radeon R9 M375X, which features a clock frequency of 1015 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M375X should in theory be much better than the Radeon HD 5550 overall. (explain)

Radeon R9 M375X 72000 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 59200 (463%)

Texel Rate

The Radeon R9 M375X is quite a bit (more or less 361%) more effective at AF than the Radeon HD 5550. (explain)

Radeon R9 M375X 40600 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 31800 (361%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M375X is the winner, by far. (explain)

Radeon R9 M375X 16240 Mpixels/sec
Radeon HD 5550 4400 Mpixels/sec
Difference: 11840 (269%)

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 HD 5550

Amazon.com

Check prices at:

Radeon R9 M375X

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 5550 Radeon R9 M375X
Manufacturer AMD AMD
Year February 9, 2010 2015
Code Name Redwood LE Cape Verde
Memory 512 MB 4096 MB
Core Speed 550 MHz 1015 MHz
Memory Speed 800 MHz 4500 MHz
Power (Max TDP) (Unknown) watts (Unknown) watts
Bandwidth 12800 MB/sec 72000 MB/sec
Texel Rate 8800 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 320(64x5) 640
Texture Mapping Units 16 40
Render Output Units 8 16
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 627 million (Unknown) million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon HD 5550

Amazon.com

Check prices at:

Radeon R9 M375X

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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