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Radeon HD 6670 (OEM) 1GB vs Radeon HD 6970

Intro

The Radeon HD 6670 (OEM) 1GB features a GPU clock speed of 800 MHz, and the 1024 MB of GDDR5 RAM runs at 1000 MHz through a 128-bit bus. It also is made up of 480 SPUs, 24 TAUs, and 8 ROPs.

Compare all of that to the Radeon HD 6970, which has a clock speed of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It features 1536 SPUs, 96 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6670 (OEM) 1GB 63 Watts
Radeon HD 6970 250 Watts
Difference: 187 Watts (297%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6970 should be quite a bit faster than the Radeon HD 6670 (OEM) 1GB overall. (explain)

Radeon HD 6970 176000 MB/sec
Radeon HD 6670 (OEM) 1GB 64000 MB/sec
Difference: 112000 (175%)

Texel Rate

The Radeon HD 6970 will be much (about 340%) better at texture filtering than the Radeon HD 6670 (OEM) 1GB. (explain)

Radeon HD 6970 84480 Mtexels/sec
Radeon HD 6670 (OEM) 1GB 19200 Mtexels/sec
Difference: 65280 (340%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6970 is a better choice, by far. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon HD 6670 (OEM) 1GB 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) 1GB

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) 1GB Radeon HD 6970
Manufacturer AMD AMD
Year February 2011 December 2010
Code Name Turks Cayman XT
Memory 1024 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 maximum amount of data (measured in megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 6670 (OEM) 1GB

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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