PCI x16 and x4 crossfire Tags: Graphics Cards PCI AMD Crossfire Graphics Product Last response: December 2, 2010 1:51 PM in Graphics & Displays Share fugben December 2, 2010 1:38:54 PM I guys i have a radeon 6870, phenom 2 1090T and this motherboard: MSI 870-G45 AM3 AMD 770 ATX AMD Motherboard http://www.newegg.com/Product/Product.aspx?Item=N82E168... It has 2 PCI 2.0 slots but one is 16 x and the other is 4x I am looking to add another 6870 for crossfire. Would the 4x bottleneck badly? More about : pci x16 crossfire Maziar a c 167 U Graphics card December 2, 2010 1:51:28 PM For PCI-E 1.0 cards, x4 will definitely hurt the performance but for PCI-E 2.0 cards, there isn't much of a difference between x16x4 and dual x16/x8 speed. Can't find your answer ? Ask ! Publish Related resources: ForumCrossfire with x16 and x4 pci -e slots? ForumCrossfire In x16 and x4 ?? ForumCrossfire Bottleneck 2.0 x16 & 2.0 x4 ForumCrossFire HD 7770 on a x16 x4 Motherboard ForumPCI -E x16 and x16 ( x4 ) question. ForumCrossfire support is x16 and x4 ForumPCI Express 2.0 x16 : (2x8) or ( x16 , x8, x4 )... What's the difference? ForumX16 x4 performance in crossfire ForumPCI Express X4 to X16 Adapter ForumDifference between PCI express 2.0 x16 and PCI express 2.0 x4 ForumCrossfire on a P35-Neo2-FIR ( x16 , x4 ) for Starcraft 2. Need advice! ForumPci -e x16 running at x16 and x4 ? Forum1 x PCI Express 2.0 x16 slots (@ x4 mode, 2.5GT/s)" ForumPCI Express 2.0 x16 at x4 mode ForumNeed Guidance ForumPCI-E 2.0 x16 Cards in PCI-E x16 Slots ForumPci express x16 250w Forum[Solved] PCI tuner card for cableAND HD antenna input Forum5770's Crossfire vs single 6870? ForumAGP to PCI More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !