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Compare any two graphics cards:
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Geforce GTX 670 vs Geforce GTX 680

Intro

The Geforce GTX 670 comes with a core clock frequency of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit memory bus, and uses a 28 nm design. It is comprised of 1344 SPUs, 112 Texture Address Units, and 32 ROPs.

Compare those specs to the Geforce GTX 680, which comes with core clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670 170 Watts
Geforce GTX 680 195 Watts
Difference: 25 Watts (15%)

Memory Bandwidth

The Geforce GTX 680 should in theory perform a little bit faster than the Geforce GTX 670 overall. (explain)

Geforce GTX 680 192256 MB/sec
Geforce GTX 670 192000 MB/sec
Difference: 256 (0%)

Texel Rate

The Geforce GTX 680 should be much (about 26%) better at texture filtering than the Geforce GTX 670. (explain)

Geforce GTX 680 128768 Mtexels/sec
Geforce GTX 670 102480 Mtexels/sec
Difference: 26288 (26%)

Pixel Rate

The Geforce GTX 680 will be a bit (approximately 10%) better at FSAA than the Geforce GTX 670, and will be capable of handling higher resolutions without losing too much performance. (explain)

Geforce GTX 680 32192 Mpixels/sec
Geforce GTX 670 29280 Mpixels/sec
Difference: 2912 (10%)

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

Geforce GTX 680

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

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Model Geforce GTX 670 Geforce GTX 680
Manufacturer nVidia nVidia
Year May 2012 March 2012
Code Name GK104 GK104
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 2048 MB
Core Speed 915 MHz 1006 MHz
Shader Speed 915 MHz 1006 MHz
Memory Speed 6000 MHz 6008 MHz
Unified Shaders 1344 1536
Texture Mapping Units 112 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.2
Power (Max TDP) 170 watts 195 watts
Shader Model 5.0 5.0
Bandwidth 192000 MB/sec 192256 MB/sec
Texel Rate 102480 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 32192 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Comments

4 Responses to “Geforce GTX 670 vs Geforce GTX 680”
Adnan says:

I was thinking about getting a gtx 680. But given the specifications and price performance ratio, 670 should be a better choice is money is a factor to you. 670 is more than 100 dollar cheaper than 680 and you get a performance drop only 5-6%. Search in the google for their benchmark and you will be amazed at how gtx 680 and gtx 670 go neck to neck. If overclocked, gtx 670 can easily surpass a stock gtx 680. The memory bandwitdh and vedeo ram are the same!

Ankit says:

thanks for info in going with gtx 670

anoyness says:

I'm getting a gtx680 for about the same price as a 670 you OC your 670 to my 680 but then i OC my 680 200mhz

scott says:

I Am defiantly going to go with a GTX 680, even though more expensive, i will buy the super over clock version which is much faster with better cooling.

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