GeForce GTX 670 2 and 3-way SLI review -
For this article ASUS supplied two GeForce GTX 670 DirectCU II cards and I quickly wanted to show them to you.
The cards are pretty customized compared to the reference design, ASUS uses their own design PCB and the DirectCU II cooler. Again we'll clock the cards at default base values since we need to insert the baseline performance into our reference charts.
In a separate article we'll look at the ASUS GTX 670 DirectCU II with it's very nice 1058 MHz base frequency and 1137 MHz boost frequency.
The GeForce GTX 670 cards will come with two GB of graphics memory, that's definitely enough if you are a hardcore gamer with a monitor resolution of 1920x1200.
The GeForce GTX 670 has a maximum power consumption of 170 Watts, you'll need to power the card with two 6-pin PCIe PEG leads from your power supply. We recommend a 550W power supply to start with (with one card of course). The card will have a Digital VRM circuitry (DIGI+). The GPU gets 6 power phases assigned and the memory another 2 separate phases.
The 10.7 x 5.4 x1.7 sized cards all are PCIe gen 3.0 compatible. Going from PCIe Gen 2 to Gen 3 doubles the bandwidth available to the add-on cards installed, from 500MB/s per lane to 1GB/s per lane.
Like any high-end GeForce graphics card, NVIDIA will allow you to opt for the multi-GPU road as you may pair two or three cards in one PC -- heck even four if you want to spend a lot of dough though.
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