NeedForSpeed
n00b
- Joined
- Nov 10, 2008
- Messages
- 8
Hi everybody, I'm about to move my Triple-SLI of 280GTXs from Core 2 to Core i7. As many of you already know, X58 chipset provides enough electric channels only for two PCI-Ex 2.0 16x slots, so on motherboards with three 16x slots when all of them are populated two of them revert to 8x; to get around this limit manufacturers could use the Nvidia NF200 bridge and be able to provide 3 full 16x slots.
I've read in many posts this assertion: "8x will provide enough bandwidth for any VGA on the market atm"; but http://www.tweaktown.com/articles/1472/1/intel_p45_vs_x48_crossfire_performance/index.html seem to show that the above is not quite right with a whopping 33-50% advantage on the 16x slots in some situations.
Otherwise http://www.guru3d.com/article/core-i7-multigpu-sli-crossfire-game-performance-review/1 shows quite good numbers for Triple-SLI even on a 16/8/8 mobo.
So, is it worth waiting for the first (if ever) NF200 boards? Provided that the NF200 produces lot of heat and a Tri-SLI rig gets quite hot by its own and adds also some latency on the bus itself, if the 280GTXs wouldn't be bandwidth limited on the 8x slots i'd go without the NF200 very happily (and save a few bucks too).
I've read in many posts this assertion: "8x will provide enough bandwidth for any VGA on the market atm"; but http://www.tweaktown.com/articles/1472/1/intel_p45_vs_x48_crossfire_performance/index.html seem to show that the above is not quite right with a whopping 33-50% advantage on the 16x slots in some situations.
Otherwise http://www.guru3d.com/article/core-i7-multigpu-sli-crossfire-game-performance-review/1 shows quite good numbers for Triple-SLI even on a 16/8/8 mobo.
So, is it worth waiting for the first (if ever) NF200 boards? Provided that the NF200 produces lot of heat and a Tri-SLI rig gets quite hot by its own and adds also some latency on the bus itself, if the 280GTXs wouldn't be bandwidth limited on the 8x slots i'd go without the NF200 very happily (and save a few bucks too).