out of curiosity?

[VengeanceUK]

knowing that i have swapped over to nVidia for graphics on my new rig.

my question is this, is it possible to have my old HD4890 in a separate pci-e express slot and use that for folding or would two different "brands" not cooperate at the same time.

no video output would be drawn off the 4890, it would be there purely for folding, does anyone know if this is possible or not?

 

[Perturabo]

I dont know the answer to your specific question but people have used AMD cards with an Nvidia one for Physx. So it is definitely possible to have cards from the two companies working in the same rig.

 

[aicjofs]

Short answer is no.

It is possible to run heterogeneous GPU's I believe in Windows 7 with SP1(or maybe it was a hotfix), probably was always possible in Linux.

However, the AMD 4000 and below series supported a lower version of OpenCL (1.0) then what the latest folding core uses, (OpenCL 1.1) the AMD 5000 and above support it. Now there is still an active core out there that supports the older AMD GPU's with Brooks coding(what AMD was using for GPU compute before turning to OpenCL although Stanford EOL'd it almost a year ago) but very few researchers are coding for it. The work units have pretty much dried up for it, every now and then there will be a short project, but the card will likely sit weeks idle or never again get a work unit. I personally dont think its worth your time.

EDIT: I did a search just to make sure I was right and found a thread talking about the work units over the last few months for 4000 cards if you want to read. It's a boring read but there it is.

http://foldingforum....hp?f=51&t=21337

 

[Big WigglyStyle]

I'm assuming the other card will be a 670? I highly doubt that any benefit will come from the 4890 as for PPD so I wouldn't bother.

 

[Pr3d4t0r]

i dont people used amds and a spare physx nvidia card, but that requires some driver moding and it has its limitations,

but nvidia with amd is a big no

 

[VengeanceUK]

yes the other card is the 670, the major issue stems from there being no optimised cores for nVidia 6 series cards,

so its sat there twiddling its (virtual) thumbs whilst the cpu does loads of work lol,

so i figure i'd see if there was a stopgap measure until 6 series cards can be used

 

[stevehat1]

yes the other card is the 670, the major issue stems from there being no optimised cores for nVidia 6 series cards,

so its sat there twiddling its (virtual) thumbs whilst the cpu does loads of work lol,

so i figure i'd see if there was a stopgap measure until 6 series cards can be used

Check this thread http://forum.overclock3d.net/index.php?/topic/43023-gtx-680-folding/ I think blah got his 680 working in V7.

 

[VengeanceUK]

right this thread can be closed as is no longer relevant.

kinda got the 670 to work (of sorts) but even so would probably be out performing the 4890 already lol