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Radeon HD 5850 vs Radeon HD 6670 (OEM)


Intro

The Radeon HD 5850 comes with a core clock speed of 725 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 256-bit memory bus, and makes use of a 40 nm design. It features 1440(288x5) SPUs, 72 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon HD 6670 (OEM), which has core clock speeds of 800 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 memory. It features 480 SPUs along with 24 TAUs and 8 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
Radeon HD 5850 151 Watts
Difference: 88 Watts (140%)

Memory Bandwidth

Theoretically, the Radeon HD 5850 should be a lot faster than the Radeon HD 6670 (OEM) overall. (explain)

Radeon HD 5850 128000 MB/sec
Radeon HD 6670 (OEM) 64000 MB/sec
Difference: 64000 (100%)

Texel Rate

The Radeon HD 5850 should be a lot (about 172%) better at texture filtering than the Radeon HD 6670 (OEM). (explain)

Radeon HD 5850 52200 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 33000 (172%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 5850 is a better choice, by far. (explain)

Radeon HD 5850 23200 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 16800 (263%)

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 6670 (OEM)

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 6670 (OEM)
Manufacturer AMD AMD
Year September 30, 2009 February 2011
Code Name Cypress PRO Turks
Memory 1024 MB 512 MB
Core Speed 725 MHz 800 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 151 watts 63 watts
Bandwidth 128000 MB/sec 64000 MB/sec
Texel Rate 52200 Mtexels/sec 19200 Mtexels/sec
Pixel Rate 23200 Mpixels/sec 6400 Mpixels/sec
Unified Shaders 1440(288x5) 480
Texture Mapping Units 72 24
Render Output Units 32 8
Bus Type GDDR5 GDDR5
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 largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core 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 fill rate also depends on many 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.

Display Prices

Hide Prices

Radeon HD 5850

Amazon.com

Radeon HD 6670 (OEM)

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.

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