Morphing nForce4 Ultra into nForce4 SLI
by Wesley Fink on January 18, 2005 7:30 AM EST- Posted in
- CPUs
Half Life 2: x16 vs. x16/x2 vs. x8/x8 (nVidia SLI)
As seen in past SLI reviews, performance with SLI improves more as resolution and "eye-candy" increases. The range of performance improvement was from a small 6% at 1280 with no AA or AF to a significant 61.0% in 1600x1200 with 4xAA and 8xAF. Performance improvements are even greater when going from a 6600 GT, 6800, or 6800GT to a dual card SLI mode. So consider this to be the smallest performance increase that you will see since we are using the top-line video cards.
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DrDisconnect - Thursday, January 20, 2005 - link
Does nVidia management have any links with Bausch and Lomb?? They were selling the same exact same contact lenses in two different product channels ie. daily wear and monthly wear. Those who bought daily wear threw out a perfectly good product after a few days, those who bought monthly wear spent a fortune on the same product the daily wear people threw out after a few days.Selling flawed chips (eg. missing pipelines) as a less powerful product I can understand. But this is just outright customer abuse by nVidia.
HardwareD00d - Thursday, January 20, 2005 - link
Maybe Anand can do an article on how to make a custom SLI bridge ;) Maybe someone could create a flexible bridge that could be like a "universal adapter".HardwareD00d - Thursday, January 20, 2005 - link
unless you use the 3D1 card, #62adnauseam - Thursday, January 20, 2005 - link
#28, Please note I went to the DFI site again today and they have CHANGED the picture that was there the other day. It no Longer shows a SLI bridge in the photo. see here: http://www.dfi.com.tw/Upload/Product_Picture/Cable...and here:
http://www.dfi.com.tw/Product/xx_product_spec_deta...
Compare with photo from #28 post. I dont see why more people are not addressing this, it makes the mod worthless if you cant get a bridge.
cryptonomicon - Thursday, January 20, 2005 - link
if the new DFI board is anything like the LP nf3 250gb, it will be the best overclocking board for 939, not to mention this incredible sli exploitWesley Fink - Thursday, January 20, 2005 - link
#57,#58,#59 - The single card/dual GPU Gigabyte 3D1 ran in 16X/2X dual video mode on both DFI boards with the jumper setting at "Normal". As stated in the comments and the article, the Gigabyte would not run in x8/x8 (nVidia SLI) with the jumper in SLI because it requires special BIOS hooks for that mode only supplied by the Gigabyte board.This is not a change from what we described in the review - just more information about alternate modes.
We do agree the single card/dual GPU idea has promise for the future. That is why we tested the 3D1 on the boards and shared results. Even in x16/x2 the 3D1 performance boost compared to a single 6600GT card was significant.
poor Leno - Thursday, January 20, 2005 - link
@ Wesley:But if all the tweaking can make the 3D1 to run on "other speeds"/ config (16x/2x and not 8x/8x), it shows that there is some flexibility maybe... is there not a way in this lifetime to run two 3D1's maybe on 4x8????? 2x8 on one bus and 2x8 on the other? Do you think in the future it will be possible to mod to 2x16??, cause in that way the 4x8 will be possible i think (correct me if im wrong) :P
Pete84 - Thursday, January 20, 2005 - link
#57 My thought's exactly. I thought that the Gigabyte drivers were specially tweaked so that SLI would be running out of a single x16 slot . . .johnsonx - Wednesday, January 19, 2005 - link
To Wesley Fink:What happened to the Gigabyte 3D1 board requiring special BIOS hooks to POST, which only the one Gigabyte mainboard had? I thought that was mentioned at least twice in your original article on the 3D1.
ksherman - Wednesday, January 19, 2005 - link
since obviosly Anandtech doesnt mind soft moding hardware... why not a SoftQuadro mod for the Video cards? I would really like to see an article about the soft moding of the gaming cards to the workstation graphics. Yes i realise that they will not perform as well as the actual card, I wonder how close... Also, since cards like the 6800GT can be used in SLI, It might be interesting to see a SLI workstation setup...