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View Full Version : A 280 and a 275 sli ??

James Stevens
12-19-09, 01:32 PM
Hey guys just wondering if I can Sli a bfg GTX 280 (1GB) OC2 to a EVGA 275 (896MB) Since the 280 is factory OC'ed its core and shader run the exact same as my 275
Thanx in advance
James
iLoki
12-21-09, 02:10 PM
I don't believe this will work, the cards need to be the same model in order to work properly in SLI.
psionic98
12-21-09, 02:18 PM
correct, sli needs 2 matching cards (not vendor matched)
Sydney
12-21-09, 02:41 PM
You can however, use one of them for PhysX, or use both cards for folding, for some awesome PPD (hint, hint)
:D
James Stevens
12-22-09, 09:33 AM
ok thanx guys, I thought I might get luck with the 'matching GPU's' but not the memory part. Hey Sydney how come it will work for folding but not games? I was running that Bionic client that schedules work, but quit cause I think thats what fried my 280.
nzaneb
12-22-09, 01:39 PM
ok thanx guys, I thought I might get luck with the 'matching GPU's' but not the memory part. Hey Sydney how come it will work for folding but not games? I was running that Bionic client that schedules work, but quit cause I think thats what fried my 280.

Folding or Boinc do not require SLI to be enabled. You can run as many GPU clients as you can fit into your motherboard.
Just for the record: I highly doubt Boinc fried your GPU.
Unclewho
12-29-09, 12:14 AM
I don't believe this will work, the cards need to be the same model in order to work properly in SLI.

So just to clarify my BFG 260 can SLI with a EVGA 260?? does the other 260 need to have the same specs (eg cores, memory, clock)
nzaneb
12-29-09, 06:55 AM
Just needs to be the same model (i.e. 260, 275, 280, 285, etc...) Also, if I recall correctly, it will work across different fab processes as well (i.e. 65nm GTX260 192SP with a 55nm GTX260 216 SP)
iLoki
12-29-09, 12:58 PM
I'm not sure if the og GTX260 and the GTX260 216sp will SLI together... thats an interesting one since they are the same model (GTX260) but different cards.

SLI with different brands (BFG, EVGA, and say Gigabyte) will all work together, as long as they are all the same model, different clocks doesn't matter, SLI will automatically scale the clocks down to the lowest common denominator.