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Radeon HD 5550 vs Radeon HD 6570 (OEM) 2GB

Intro

The Radeon HD 5550 has clock speeds of 550 MHz on the GPU, and 400 MHz on the 512 MB of DDR2 memory. It features 320(64x5) SPUs as well as 16 Texture Address Units and 8 Rasterization Operator Units.

Compare all of that to the Radeon HD 6570 (OEM) 2GB, which has core clock speeds of 650 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 480 SPUs as well as 24 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon HD 6570 (OEM) 2GB should theoretically be much better than the Radeon HD 5550 overall. (explain)

Radeon HD 6570 (OEM) 2GB 64000 MB/sec
Radeon HD 5550 12800 MB/sec
Difference: 51200 (400%)

Texel Rate

The Radeon HD 6570 (OEM) 2GB will be much (approximately 77%) more effective at texture filtering than the Radeon HD 5550. (explain)

Radeon HD 6570 (OEM) 2GB 15600 Mtexels/sec
Radeon HD 5550 8800 Mtexels/sec
Difference: 6800 (77%)

Pixel Rate

The Radeon HD 6570 (OEM) 2GB will be just a bit (about 18%) more effective at anti-aliasing than the Radeon HD 5550, and will be able to handle higher resolutions better. (explain)

Radeon HD 6570 (OEM) 2GB 5200 Mpixels/sec
Radeon HD 5550 4400 Mpixels/sec
Difference: 800 (18%)

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

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Radeon HD 6570 (OEM) 2GB

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 HD 6570 (OEM) 2GB
Manufacturer AMD AMD
Year February 9, 2010 February 2011
Code Name Redwood LE Turks
Memory 512 MB 1024 MB
Core Speed 550 MHz 650 MHz
Memory Speed 800 MHz 4000 MHz
Power (Max TDP) (Unknown) watts 50 watts
Bandwidth 12800 MB/sec 64000 MB/sec
Texel Rate 8800 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 320(64x5) 480
Texture Mapping Units 16 24
Render Output Units 8 8
Bus Type DDR2 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 627 million 715 million
Bus PCIe 2.1 x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 5550

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 2GB

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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