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Geforce GTX 670 vs Geforce GTX 680

Intro

The Geforce GTX 670 features core clock speeds of 915 MHz on the GPU, and 1500 MHz on the 2048 MB of GDDR5 RAM. It features 1344 SPUs along with 112 Texture Address Units and 32 Rasterization Operator Units.

Compare all of that to the Geforce GTX 680, which has a clock speed of 1006 MHz and a GDDR5 memory speed of 1502 MHz. It also features a 256-bit bus, and uses a 28 nm design. It features 1536 SPUs, 128 TAUs, and 32 ROPs.

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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

Geforce GTX 680 7642 points
Geforce GTX 670 7532 points
Difference: 110 (1%)

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, in theory, should perform just a 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 is much (approximately 26%) faster with regards to AF than the Geforce GTX 670. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Geforce GTX 680 is a better choice, but not by far. (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
Memory 2048 MB 2048 MB
Core Speed 915 MHz 1006 MHz
Memory Speed 6000 MHz 6008 MHz
Power (Max TDP) 170 watts 195 watts
Bandwidth 192000 MB/sec 192256 MB/sec
Texel Rate 102480 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 29280 Mpixels/sec 32192 Mpixels/sec
Unified Shaders 1344 1536
Texture Mapping Units 112 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.2

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 again. If it uses 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 can be applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video 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 maximum amount of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum 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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