Has anyone seen any data on 2011 vs 1155 platforms with regard to multi GPU setups? I've been thinking about running SLI when kepler cards are released but I don't want to get short changed performance wise due to PCIe bottlenecks with my current 1155 board.
I wouldn't expect it to make much difference with a single graphics card.
Sandy Bridge only has 16 PCIe 2.0 Lanes available for connecting a GPU, Sandy Bridge-E has 40... I guess the real question is how long will it be before GPUs require so much bandwidth that Sandy Bridge can no longer effectively feed more than one GPU?
Here's something that's unexpectedly happened with the new Nvid R300 (301.10whql) Drivers for the GTX600's.... the Nvid driver, slows the PCI-E from 3.0 to 2.0 on the 2011 SKTS (X79) Chipsets. Once this driver has been updated, then you should expect PCI-E 3.0 speeds. Here's where I found the news..
I could buy this card now, but seeing as they are entry level, and although faster than the AMD 7970 Cards, Kepler is not fully unleashed (GTX680 is GK104 chip). I am holding off for the monster GK110. This is the card that will be over 50% faster than the GTX580, and make the 580 look somewhat 8800ish
Yup Super, but remember the GK110's are not here yet. Also, the GTX680's are entry level at this stage GK104's. Agreed also that these cards do have advantages, and disadvantages BUT the drivers for the GK104's are not matured/optimised at this stage, so there is still a lot of potential of 7970 arse whooping to come from those 680's.
Well I hope the drivers make them kick arid, anything for a price war. The interesting part of the GTX680 is I believe NV meant to have this card compete with the HD 7870 but ended up performing above and beyond with the HD 7970 price is instead, so they did a quick name change from say GTX670 to GTX680 and happelly jacked up the cards price. If AMD does not drop the HD 7970's of price, the 680 is going to sell very well.
Anyhow AMD should eliminate the threat with it's monster HD 7990 Dual GPU card based on HD 7970's.