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Quad GeForce 7950GX2 is go

Shorter, smarter 8-layer PCB layout
Thursday, 27 April 2006, 16:48
INTENDED FOR computers with the average price of couple of year-old Corvettes, the quad-GPU configuration is probably the best 3D product, fabless chipmaking marketing departments ever saw; everybody talks about it, but nobody can post either a review or a hands on article. The only alleged preview was posted on April 17th by an unnamed web-site, and got taken down an hour later.

The reason Nvidia wants to keep things silent before the E3 event is not the second, but rather third launch of the very same thing, but this time, with a twist.

As Charlie reported here, the QuadSLI v1.1 will be actually known as the GeForce 7950GX2.

The redesigned product is a serious demonstration of Nvidia's engineering dept. Under a code name P501, the new board is almost 11cm shorter than the original 7900GX - 22.5cm compared to the 33.5cm (7950GX2 is actually a bit shorter than 7800/7900GTX). This isn't the only change. The number of layers is now set at eight, and the redesigned power circuitry is now more efficient than the previous one.

New power circuitry draws 70 Watts from the motherboard and additional 73 Watts from two 6-pin connectors - Nvidia decided to play it safe, although the configuration could now work with a single 6-pin connector, reducing the strain from the PSUs.

Combined total is of course, still set at 286 to 300 Watts for QuadSLI, which means you need one hefty, 650 or 750 Watt power supply unit.

The remaining specs are still the same: G71 GPU is working at 1.25 Volts and is clocked at 500MHz. The 512MB of 1.4ns GDDR-3 memory is clocked at 1200MHz, but you can go for 1300 or even 1400MHz, depending on your luck with the clocking.

The memory is produced by either Samsung or Infineon.

With the 7950GX2, the honour to produce the boards won't be tied to Flextronics alone, and many others will be able to board the QuadSLI Marchitecture train. You can expect all Foxconn-bound companies to gather around and, who knows, perhaps you'll even see a single blue PCB with two GPUs... at Computex, of course. µ

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