It sounds like a driver issue of some kind, you should get significantly better performance than that. Try benchmarking with/without SLI.
As far as the specs go, this is purely theortically, you should be able to kick out 50-100 million triangles/sec with a real model. Try the OSG examples like osgparametric, I pushes through 1 million triangles as a single mesh. I get 200Hz with vsync off on single 7800GT to two 7800GT, which put me in at a real throughput of 200 million triangles a second per card, 400 million a second for both. This is running multipipe though, not SLI.
Robert.
On 9/22/06, Wasileski, Bryan J. <[EMAIL PROTECTED]> wrote:
Hi all,I recently received a couple of new workstations which have the NVIDIA 4500 X2 video cards installed (Dell machines). We intend to run all our new visuals on the machines using OSG. I've been trying to gauge the graphics performance and from what I've seen so far I'm thoroughly disappointed. I'm assuming at this point the boards are not properly configured. The issue I'm having is trying to find a way to test the boards to determine if they are in fact improperly configured or just don't measure up.As an example, I have a scene database that I load into OSG; at any given moment, the scene has about 40K primitives. I'm only getting frame rates around 5-10Hz - which is totally unacceptable. According to the specs, these GPU's are capable of 225M triangles/sec. I feel certain that only 1 of the 2GPU's is being exercised - I know of no way to verify it.With all the graphics/visual system wizards who monitor this sight I thought someone out there might be able to provide some advice on getting these new boards properly configured so I can actually test their performance.Additional info on the new boxes is:2 Intel Xenon 3.7GHz - Linux OS EMT6416GB memoryAlso, kudos for the flawless 64-bit OSG build. Worked without a single glitch.Bryan
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