I have two geforce GTX 480's but I have a GA-P55A-UD4P mobo, does that mean, since there seems to be one 16x lane that the two cards at 8x would slow down a lot? Sadly I just found this out after I placed an order on my rig, but I fid out soon enough I could cancel it and try for the X58 chipset. the specs on the rig I got are:
also if I do stick with this I plan on overclocking the CPU.
CD: Sony 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive
CD2: None [-24]
CAS: Raidmax Typhoon Gaming Mid-Tower Case with See-Thur Side Panel
CS_FAN: Maximum 120MM Case Cooling Fans for your selected case
CPU: Intel(R) Core™ i7-875K 2.93 GHz 8M Intel Smart Cache LGA 1156
CARE1: Ultra Enhanced Packaging Solution - Protect Your Dream System During Transit
CARE2: Professional Wiring for All WIRING Inside The System Chassis - Minimize Cable Exposure, Maximize Airflow in Your System [
FREEBIE_CU: FREE Game - Napolean: Total War
FAN: Xigmatek Thor's Hammer Gaming CPU Cooling Fan (Double layer H.D.T. technology for maximum cooling)
HDD: 2TB SATA-II 3.0Gb/s 32MB Cache 7200RPM HDD (Single Hard Drive)
KEYBOARD: Xtreme Gear (Black Color) Multimedia/Internet USB Keyboard
MOUSE: XtremeGear Optical USB 3 Buttons Gaming Mouse
MOTHERBOARD: * [CrossFireX/SLI] GigaByte GA-P55A-UD4P Intel P55 Chipset DDR3 ATX Mainboard w/ 7.1 HD Audio, GbLAN, USB3.0, 2 x SATA-III RAID, 2 Gen2 PCIe, 3 PCIe X1, & 2 PCI
MB_ADDON: Asus U3S6 True 2 x USB 3.0 & 2 x SATA-II PCIe X4 Expansion Card
MEMORY: 8GB (2GBx4) DDR3/1600MHz Dual Channel Memory Module (A-Data Gaming Series with Heat Spreader)
MULTIVIEW: Xtreme Performance in SLI/CrossFireX Gaming Mode Supports Single Monitor
NETWORK: Onboard Gigabit LAN Network
OS: Microsoft(R) Windows(R) 7 Home Premium (64-bit Edition)
OVERCLOCK: No Overclocking
POWERSUPPLY: 950 Watts Power Supplies (CyberPowerPC Power Supply)
USB: Add External USB 2.0 Hub (4x USB 2.0 Ports) [+19] (SILVER Color IR-4100-SL)
VIDEO: NVIDIA GeForce GTX 480 1.5GB 16X PCIe Video Card (Major Brand Powered by NVIDIA)
VIDEO2: NVIDIA GeForce GTX 480 1.5GB 16X PCIe Video Card (Major Brand Powered by NVIDIA)
Your board supports both SLI and CF,so you can use your cards on it(on dual 8x mode) http://www.pcstats.com/articleview.cfm?articleID=2495
"The GA-P55A-UD4P still has support for all of Intel's socket 1156 Core i5 700-series and Core i7 800-series processors, can be installed with up to 16GB of DDR3 memory at speeds of 800/1066/1333/2200 in four DDR3 memory slots. The board supports dual-videocard SLI/Crossfire gaming configurations in a x8/x8 PCI Express 2.0 arrangement, or a single videocard in x16 mode."
The only detriment to your set-up is when you ever use USB 3.0 it will not function at full speed.
Personally i wouldn't be too concerned if your main purpose is gaming on your rig.
From what i understand the USB would perform slightly better then USB 2.0 anyways just not full USB 3.0.