x16-x4

kingnoob · 27 Sep 2009 at 21:43

what sota CrossFire and SLI can u do with a x16 and a x4 slot mobo ?

been looking at this http://www.overclockers.co.uk/showproduct.php?prodid=MB-209-GI&groupid=701&catid=5&subcat=1495

it suports Multi-display with ATI CrossFireX and NVIDIA SLI

SkodaMart · 27 Sep 2009 at 21:45

Supports Crossfire only from what I can see

kingnoob · 27 Sep 2009 at 21:46

i done some research and its multi

SkodaMart · 27 Sep 2009 at 21:58

Kingnoob, you have made me look like a noob!!

kingnoob · 27 Sep 2009 at 22:03

didont mean to sorry i duno for real if it is but a lot of sites i went on sead it was so i duno

LoadsaMoney · 27 Sep 2009 at 22:11

4x slot will seriously limit it, so not worth doing Xfire or SLi.

kingnoob · 27 Sep 2009 at 22:11

so whats it for ?

cmndr_andi · 27 Sep 2009 at 22:12

I can't see where it says its SLI, had a look on the Gigabyte website and a review. The BIOS updates on the gigabyte site don't mention adding SLI either. Where did you read that it was SLI?

As the p55 board splits the PCIE lanes then I guess the crossfire would have to be x12x4 or something similar. After looking at this review PCIE 2.0 x4 doesn't seem so bad - but if you want to use multi GPU this probably isn't the best board to be looking at.

RJC · 27 Sep 2009 at 22:12

Looking at the Gigabyte website it only supports crossfire:

http://www.gigabyte.com.tw/Products...rboard&ProductID=3165&ProductName=GA-P55M-UD2

kingnoob · 27 Sep 2009 at 22:16

Multi-display support with ATI CrossFireX and NVIDIA SLI
P55-UD6 supporting both ATI CrossFireX and NVIDIA SLI delivers the ultimate in graphics performance for gaming enthusiasts who demand the highest frame rates without compromising on resolution.

got that from misco
Manufacturer Part No: GA-P55M-UD2

cmndr_andi · 27 Sep 2009 at 22:19

Multi-display support with ATI CrossFireX and NVIDIA SLI
P55-UD6 supporting both ATI CrossFireX and NVIDIA SLI delivers the ultimate in graphics performance for gaming enthusiasts who demand the highest frame rates without compromising on resolution.

This description is clearly on the wrong page on their site, looks like its meant for the UD6 (which does support SLI). The UD2 doesn't.

kingnoob · 27 Sep 2009 at 22:22

omg how did i so miss that lmao
will a xfire bored run a single nvidia card as good as an sli bored ?

RJC · 27 Sep 2009 at 22:30

Yep, no problems.

phatboy · 28 Sep 2009 at 07:55

I have just bought a second HD4770 to run in Xfire on my IP35 as i got one fairly cheap.

Results so far have been promising.

Devil May Cry 4 shows a jump of 120fps to 263fps in the benchmark built into the game (i know that this is not visible to human eye - but it shows that the second 4x Slot is doing something!)

did a 3dmark 03 run and hit 58k points - 1k behind this!!! http://biostar-sme.com/images/benchmark/vga-4890-1gb/3dM03-1N.jpg so i am quite happy for a £350 machine!

Need to run some more benchies really to see what i am getting, have a feeling i am going to be rather CPU limited with my [email protected] (Max stable OC), would i be right?

think that i got circa 9k in Vantage last night with the cards clocked to 830/850 and CPU at 3ghz.

kingnoob · 30 Sep 2009 at 16:16

ok im going to get this bored and run 1 nvidia card on it

blaineoliver · 30 Sep 2009 at 17:18

Getting a board with a 16x 2.0 and a 4x2.0 wont be too badly limited, there is a techpowerup article showing how the performance drop even on a 5870 is minimal.

kingnoob · 30 Sep 2009 at 18:07

can i run a 2 nvidia cards were 1 is doing physx ? on that bored ? seengs how its not a true sli ?

kingnoob · 30 Sep 2009 at 22:50

will a 260 work like this ?

fornowagain · 30 Sep 2009 at 23:04

cmndr_andi said:
As the p55 board splits the PCIE lanes then I guess the crossfire would have to be x12x4 or something similar. After looking at this review PCIE 2.0 x4 doesn't seem so bad - but if you want to use multi GPU this probably isn't the best board to be looking at.

blaineoliver said:
Getting a board with a 16x 2.0 and a 4x2.0 wont be too badly limited, there is a techpowerup article showing how the performance drop even on a 5870 is minimal.

Except they used a single card on a gimped x58, not quite the same thing as two cards sharing bandwidth on an x8/x8 on die controller.

This one should give a better idea > ATI HD 5870 Scaling Performance: X58 vs P55 Showdown

Keep an eye on the min frames.

kingnoob · 30 Sep 2009 at 23:41

but can u run 2 nvidia cards with 1 running phix on a xfire bored ?