How to determine how many PCI-E lanes Gfx card is using

[qui]

Hi, I have a 7950GX2, however I have notices my scores are a little low compared to other with similarly clocked card 600gpu 800mem get me:
SM 2.0 Score 4459 Marks
SM 3.0 Score 4262 Marks

When I look in CPU-Z 1.35 motherboard tab I see Link width of 8x max supported 16x, does this mean I am running in 8x mode or is it just picking up the first cards link speed?

Thanks

[cky2k6]

i think its just picking up the first card, as the 7950 is just two 7900gt cards connected with an sli bridge.

[qui]

ya thats what I thought, but my scores dont reflect my clock speed for this card, almost all GX2's running at the speeds my are get:

SM 2.0 Score ~4700+ Marks
SM 3.0 Score ~4400+ Marks