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Radeon HD 6570 (OEM) 1GB vs Radeon HD 6850

Intro

The Radeon HD 6570 (OEM) 1GB makes use of a 40 nm design. AMD has clocked the core speed at 650 MHz. The GDDR3 RAM works at a frequency of 900 MHz on this model. It features 480 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare those specs to the Radeon HD 6850, which uses a 40 nm design. AMD has clocked the core speed at 775 MHz. The GDDR5 RAM works at a frequency of 1000 MHz on this particular model. It features 960 SPUs as well as 48 Texture Address Units and 32 Rasterization Operator Units.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6850 2395 points
Radeon HD 6570 (OEM) 1GB 850 points
Difference: 1545 (182%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 6850 127 Watts
Difference: 77 Watts (154%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6850 is 344% faster than the Radeon HD 6570 (OEM) 1GB overall, because of its greater data rate. (explain)

Radeon HD 6850 128000 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 99200 (344%)

Texel Rate

The Radeon HD 6850 will be quite a bit (more or less 138%) better at AF than the Radeon HD 6570 (OEM) 1GB. (explain)

Radeon HD 6850 37200 Mtexels/sec
Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Difference: 21600 (138%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6850 is the winner, by a large margin. (explain)

Radeon HD 6850 24800 Mpixels/sec
Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Difference: 19600 (377%)

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 6570 (OEM) 1GB

Amazon.com

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Radeon HD 6850

Amazon.com

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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 6570 (OEM) 1GB Radeon HD 6850
Manufacturer AMD AMD
Year February 2011 October 2010
Code Name Turks Barts Pro
Memory 1024 MB 1024 MB
Core Speed 650 MHz 775 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 50 watts 127 watts
Bandwidth 28800 MB/sec 128000 MB/sec
Texel Rate 15600 Mtexels/sec 37200 Mtexels/sec
Pixel Rate 5200 Mpixels/sec 24800 Mpixels/sec
Unified Shaders 480 960
Texture Mapping Units 24 48
Render Output Units 8 32
Bus Type GDDR3 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 715 million 1700 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - 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 6570 (OEM) 1GB

Amazon.com

Check prices at:

Radeon HD 6850

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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