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Radeon HD 5850 vs Radeon HD 6570 (OEM) 1GB

Intro

The Radeon HD 5850 uses a 40 nm design. AMD has clocked the core frequency at 725 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this particular model. It features 1440(288x5) SPUs as well as 72 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Radeon HD 6570 (OEM) 1GB, which has core speeds of 650 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR3 memory. It features 480 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 5850 151 Watts
Difference: 101 Watts (202%)

Memory Bandwidth

The Radeon HD 5850, in theory, should perform a lot faster than the Radeon HD 6570 (OEM) 1GB overall. (explain)

Radeon HD 5850 128000 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 99200 (344%)

Texel Rate

The Radeon HD 5850 will be quite a bit (more or less 235%) more effective at texture filtering than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 5850 52200 Mtexels/sec
Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Difference: 36600 (235%)

Pixel Rate

The Radeon HD 5850 is a lot (more or less 346%) more effective at anti-aliasing than the Radeon HD 6570 (OEM) 1GB, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Difference: 18000 (346%)

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 5850

Amazon.com

Radeon HD 6570 (OEM) 1GB

Amazon.com

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 5850 Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year September 30, 2009 February 2011
Code Name Cypress PRO Turks
Memory 1024 MB 1024 MB
Core Speed 725 MHz 650 MHz
Memory Speed 4000 MHz 1800 MHz
Power (Max TDP) 151 watts 50 watts
Bandwidth 128000 MB/sec 28800 MB/sec
Texel Rate 52200 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 1440(288x5) 480
Texture Mapping Units 72 24
Render Output Units 32 8
Bus Type GDDR5 GDDR3
Bus Width 256-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 2154 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 maximum amount of information (measured in MB per second) that can be transported past the external memory interface in a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

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