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Geforce GTX 670 vs Radeon HD 6970

Intro

The Geforce GTX 670 has a GPU core speed of 915 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1500 MHz through a 256-bit bus. It also is comprised of 1344 Stream Processors, 112 TAUs, and 32 Raster Operation Units.

Compare that to the Radeon HD 6970, which comes with GPU clock speed of 880 MHz, and 2048 MB of GDDR5 RAM set to run at 1375 MHz through a 256-bit bus. It also is made up of 1536 SPUs, 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

Geforce GTX 670 7351 points
Radeon HD 6970 3470 points
Difference: 3881 (112%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
Radeon HD 6970 250 Watts
Difference: 80 Watts (47%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 670 should in theory be a little bit better than the Radeon HD 6970 overall. (explain)

Geforce GTX 670 192000 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 16000 (9%)

Texel Rate

The Geforce GTX 670 should be a lot (about 21%) better at anisotropic filtering than the Radeon HD 6970. (explain)

Geforce GTX 670 102480 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 18000 (21%)

Pixel Rate

If running with high levels of AA is important to you, then the Geforce GTX 670 is a better choice, though only just barely. (explain)

Geforce GTX 670 29280 Mpixels/sec
Radeon HD 6970 28160 Mpixels/sec
Difference: 1120 (4%)

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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Geforce GTX 670

Amazon.com

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Radeon HD 6970

Amazon.com

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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 Geforce GTX 670 Radeon HD 6970
Manufacturer nVidia AMD
Year May 2012 December 2010
Code Name GK104 Cayman XT
Memory 2048 MB 2048 MB
Core Speed 915 MHz 880 MHz
Memory Speed 6000 MHz 5500 MHz
Power (Max TDP) 170 watts 250 watts
Bandwidth 192000 MB/sec 176000 MB/sec
Texel Rate 102480 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 1344 1536
Texture Mapping Units 112 96
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 40 nm
Transistors 3540 million 2640 million
Bus PCIe 3.0 x16 PCIe x16
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better 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 number of texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 ability to reach the maximum fill rate.

Display Prices

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Geforce GTX 670

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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