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Radeon HD 6670 (OEM) vs Radeon HD 6970

Intro

The Radeon HD 6670 (OEM) has a clock frequency of 800 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is made up of 480 SPUs, 24 TAUs, and 8 ROPs.

Compare those specifications to the Radeon HD 6970, which makes use of a 40 nm design. AMD has clocked the core frequency at 880 MHz. The GDDR5 memory works at a frequency of 1375 MHz on this specific model. It features 1536 SPUs along with 96 TAUs 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 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

Theoretically speaking, the Radeon HD 6970 should be 175% faster than the Radeon HD 6670 (OEM) overall, due to its higher data rate. (explain)

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

Texel Rate

The Radeon HD 6970 should be quite a bit (more or less 340%) more effective at texture filtering 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

If using a high screen resolution is important to you, then the Radeon HD 6970 is superior to the Radeon HD 6670 (OEM), by a large margin. (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: Bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the 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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