Nvidia launches Quadro with 1.5GB of RAM

THE TIME FOR G80GL is now. Nvidia used the first day of the Game Developers Conference here in San Francisco to launch the "GL" version of its G80 chip, better known to the general public as Quadro.

Close to half a year ago, we disclosed that G80GL will have 1.5GB of GDDR3 memory, and now that has come to pass.

There are two offerings in the range. Quadro FX 4600 uses a regular GeForce 8800GTS PCB, but features a full 768MB of GDDR-3 memory, a 384-bit interface with bandwidth of 57.6 GB/s (memory clock is set at modest 1.2 GHz).

The Quadro FX 5600 uses the 8800GTX PCB, but this time memory is placed on both sides of the PCB, yielding in massive 1.5GB of video memory clocked at 1.6GHz (Nvidia does not disclose GPU/RAM clocks for their professional products, but the memory clock is easy to calculate - divide bandwidth with memory interface in bytes and that's that - so 76800(MB/s)/48(bytes)=1600 (MHz), fully addressable system memory thanks to G80 virtual memory feature.

Until FireGL R600 with 2GB of memory arrives, this is the fastest professional 3D card with the most video memory in the world. µ

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