MSI R5670 Cyclone 1G Graphics Card
Author: Zahn Funk
Editor: Shawn Knight
Date: 04-28-2010
Provided by: MSI

The R5670 Cyclone 1G comes carefully packaged in a retail box with card, manuals and software CD. There are no cables, no adapters and no bundled game like you might find included with some higher-end cards, but this is to be expected in this price range. The installation manual and user guide are full color prints with good detail about the card features including diagrams and screen captures of the installation.

The R5670 is only 168mm or a little over six and a half inches in length. As a result, the Cyclone cooler looks huge in comparison, it practically covers the entire face of the card. Although a reference 5670 is a single slot, all three of MSI's 5670 cards use double-slot coolers and riser supports. Even though the riser is vented, none of the coolers are designed to expel the hot air out the back of the case, and there is no plastic shroud covering the card. MSI places guards over the PCI-E, DVI, HDMI, DisplayPort and Crossfire connectors.

All solid caps and solid state choke are used, a feature MSI refers to as "Military Class Concept" design. They claim higher efficiency, more stable power and longer life expectancy, and more importantly no annoying squeal from overstressed components. The R5670 has no external power requirement; the card's rated 64W can safely be drawn from the PCI-E slot, which can handle up to 75W. It has been quite some time since I have used a card that did not require at least one 6-pin PCI-E power connector. The fan is a 4-pin conductor, meaning it utilizes PWM and speed sense/control for automatic regulation to balance temperature and noise.

Four 128Mb Samsung chips are arranged on each side of the card giving the R5670 a total of 1Gb of GDDR5 memory running at 1010MHz and with a theoretical bandwidth of 64GB/s. The 40nm Redwood core offers 400 stream processors, 20 texture units and only eight raster units in contrast to its 128bit memory interface. This should place the card somewhere between a 4670 and 4770, or a 9600GSO/9800GT and GT220/GT240 nVidia equivalent.

Let's install the R5670 and have a look at some of the features.

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