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Radeon HD 3850 1GB vs Radeon HD 6570 (OEM) 1GB

Intro

The Radeon HD 3850 1GB features a clock speed of 668 MHz and a GDDR3 memory frequency of 828 MHz. It also uses a 256-bit bus, and uses a 55 nm design. It is made up of 320(64x5) SPUs, 16 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 6570 (OEM) 1GB, which comes with a GPU core clock speed of 650 MHz, and 1024 MB of GDDR3 memory set to run at 900 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6570 (OEM) 1GB 50 Watts
Radeon HD 3850 1GB 75 Watts
Difference: 25 Watts (50%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 3850 1GB should be 84% quicker than the Radeon HD 6570 (OEM) 1GB in general, because of its higher bandwidth. (explain)

Radeon HD 3850 1GB 52992 MB/sec
Radeon HD 6570 (OEM) 1GB 28800 MB/sec
Difference: 24192 (84%)

Texel Rate

The Radeon HD 6570 (OEM) 1GB should be much (approximately 46%) better at texture filtering than the Radeon HD 3850 1GB. (explain)

Radeon HD 6570 (OEM) 1GB 15600 Mtexels/sec
Radeon HD 3850 1GB 10688 Mtexels/sec
Difference: 4912 (46%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 3850 1GB is the winner, and very much so. (explain)

Radeon HD 3850 1GB 10688 Mpixels/sec
Radeon HD 6570 (OEM) 1GB 5200 Mpixels/sec
Difference: 5488 (106%)

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 3850 1GB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 1GB

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 3850 1GB Radeon HD 6570 (OEM) 1GB
Manufacturer AMD AMD
Year Nov 19, 2007 February 2011
Code Name RV670 PRO Turks
Memory 1024 MB 1024 MB
Core Speed 668 MHz 650 MHz
Memory Speed 1656 MHz 1800 MHz
Power (Max TDP) 75 watts 50 watts
Bandwidth 52992 MB/sec 28800 MB/sec
Texel Rate 10688 Mtexels/sec 15600 Mtexels/sec
Pixel Rate 10688 Mpixels/sec 5200 Mpixels/sec
Unified Shaders 320(64x5) 480
Texture Mapping Units 16 24
Render Output Units 16 8
Bus Type GDDR3 GDDR3
Bus Width 256-bit 128-bit
Fab Process 55 nm 40 nm
Transistors (Unknown) million 715 million
Bus PCIe 2.0 x16/AGP 8x PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 can be 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 3850 1GB

Amazon.com

Check prices at:

Radeon HD 6570 (OEM) 1GB

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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