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Radeon HD 5570 vs Radeon HD 6570 (OEM) 1GB


The Radeon HD 5570 has a GPU core clock speed of 650 MHz, and the 512 MB of DDR3 memory is set to run at 900 MHz through a 128-bit bus. It also is comprised of 400(80x5) Stream Processors, 20 Texture Address Units, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which comes with core clock speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 480 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5570 43 Watts
Radeon HD 6570 (OEM) 1GB 50 Watts
Difference: 7 Watts (16%)

Memory Bandwidth

Both cards have the exact same memory bandwidth, so in theory they should perform the same. (explain)

Texel Rate

The Radeon HD 6570 (OEM) 1GB will be a little bit (more or less 20%) faster with regards to texture filtering than the Radeon HD 5570. (explain)

Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Radeon HD 5570 13000 Mtexels/sec
Difference: 2600 (20%)

Pixel Rate

Both cards have exactly the same pixel rate, so theoretically they should be equally good at at full screen anti-aliasing, and be able to handle the same screen resolutions. (explain)

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 5570

Radeon HD 6570 (OEM) 1GB

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.


Display Specifications

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Model Radeon HD 5570 Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year February 9, 2010 February 2011
Code Name Redwood PRO Turks
Memory 512 MB 1024 MB
Core Speed 650 MHz 650 MHz
Memory Speed 1800 MHz 1800 MHz
Power (Max TDP) 43 watts 50 watts
Bandwidth 28800 MB/sec 28800 MB/sec
Texel Rate 13000 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 400(80x5) 480
Texture Mapping Units 20 24
Render Output Units 8 8
Bus Type DDR3 GDDR3
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: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be moved past the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the 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 record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill 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 max fill rate.


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