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Radeon HD 6670 (OEM) vs Radeon HD 6970

Intro

The Radeon HD 6670 (OEM) makes use of a 40 nm design. AMD has set the core speed at 800 MHz. The GDDR5 RAM is set to run at a frequency of 1000 MHz on this particular card. It features 480 SPUs as well as 24 Texture Address Units and 8 ROPs.

Compare all of that to the Radeon HD 6970, which comes with GPU core speed of 880 MHz, and 2048 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 TAUs, and 32 Raster Operation 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 6970 3470 points
Radeon HD 6670 (OEM) 1120 points
Difference: 2350 (210%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 63 Watts
Radeon HD 6970 250 Watts
Difference: 187 Watts (297%)

Memory Bandwidth

In theory, the Radeon HD 6970 should perform a lot faster than the Radeon HD 6670 (OEM) in general. (explain)

Radeon HD 6970 176000 MB/sec
Radeon HD 6670 (OEM) 64000 MB/sec
Difference: 112000 (175%)

Texel Rate

The Radeon HD 6970 is quite a bit (more or less 340%) faster with regards to AF than the Radeon HD 6670 (OEM). (explain)

Radeon HD 6970 84480 Mtexels/sec
Radeon HD 6670 (OEM) 19200 Mtexels/sec
Difference: 65280 (340%)

Pixel Rate

The Radeon HD 6970 will be much (approximately 340%) more effective at anti-aliasing than the Radeon HD 6670 (OEM), and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon HD 6670 (OEM) 6400 Mpixels/sec
Difference: 21760 (340%)

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 6670 (OEM)

Amazon.com

Check prices at:

Radeon HD 6970

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 6670 (OEM) Radeon HD 6970
Manufacturer AMD AMD
Year February 2011 December 2010
Code Name Turks Cayman XT
Memory 512 MB 2048 MB
Core Speed 800 MHz 880 MHz
Memory Speed 4000 MHz 5500 MHz
Power (Max TDP) 63 watts 250 watts
Bandwidth 64000 MB/sec 176000 MB/sec
Texel Rate 19200 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 6400 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 480 1536
Texture Mapping Units 24 96
Render Output Units 8 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 715 million 2640 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 max amount of data (in units of megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 amount of texture map elements (texels) that can be processed in one second. This number 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 video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 6670 (OEM)

Amazon.com

Check prices at:

Radeon HD 6970

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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