Join Us On Facebook

Compare any two graphics cards:
VS

Geforce GTX 670 vs Radeon HD 6970

Intro

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

Compare all that to the Radeon HD 6970, which comes with clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

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

Theoretically speaking, the Geforce GTX 670 is 9% quicker than the Radeon HD 6970 overall, because of its greater bandwidth. (explain)

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

Texel Rate

The Geforce GTX 670 should be quite a bit (approximately 21%) more effective at AF 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 a high screen resolution is important to you, then the Geforce GTX 670 is the winner, though not by far. (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

Geforce GTX 670

Amazon.com

Radeon HD 6970

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

Model Geforce GTX 670 Radeon HD 6970
Manufacturer nVidia AMD
Year May 2012 December 2010
Code Name GK104 Cayman XT
Fab Process 28 nm 40 nm
Bus PCIe 3.0 x16 PCIe x16
Memory 2048 MB 2048 MB
Core Speed 915 MHz 880 MHz
Shader Speed 915 MHz (N/A) MHz
Memory Speed 1500 MHz (6000 MHz effective) 1375 MHz (5500 MHz effective)
Unified Shaders 1344 1536
Texture Mapping Units 112 96
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11.0 DirectX 11
OpenGL Version OpenGL 4.2 OpenGL 4.1
Power (Max TDP) 170 watts 250 watts
Shader Model 5.0 5.0
Bandwidth 192000 MB/sec 176000 MB/sec
Texel Rate 102480 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 28160 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be moved past the external memory interface in one second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Comments

Be the first to leave a comment!

Your email address will not be published.


You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

WP-SpamFree by Pole Position Marketing