1 Good AMD or two meh Nvidia?

Nanomd

Honorable
Jan 9, 2014
4
0
10,510
I've somewhat recently gotten access to a new-to-me graphics card, which was pulled from the corpse of a computer whose motherboard died. It is an AMD, and I believe it is a ATI 5850, with 1 gb DDR5. I cannot be exactly certain of this, as the information the AMD Catalyst software gives is lacking. It displays this
AMD_Catalyst_Control_Center_Card_Info.png

Note the distinct lack of an actual model number.

Previously, I had been using a Nvidia GT 440 as my primary video adapter, and had a 8400 GS set as a dedicated Physx processor. I'm sure I could get a hybrid video card system working so I could continue to use the 8400 as a physx processor with the 5850 as my primary video adapter, but at the moment I don't have enough time to dedicate to actually do so.

The question that's floating around in my head right now is if installing this AMD card solo is actually better than having the dual Nvidia cards working together. If someone can answer this question outright, than that would be perfect. If not, does anyone know of a good GPU benchmarking software which can test the AMD solo, and more importantly, test the Nvidia cards working together. (That may sound strange, let me explain: I don't know if something like Furmark will test both of them at the same time, or separately, or just the primary and not even deal with the secondary.) If the test could give me some sort of numerical rating of the the cards after it is done, that would make it easier for me to compare the cards.

Additional information about my rig which may or may not be relevant. The machine started life inside an HP Pavilion case, but parts have been swapped and upgraded, and she's moved into a Phantom NZXT case. The current power supply is a 500w Java, three disk drives, two hard drives (totaling in 750 GB)
System_info.png