07-01-2009, 07:43 AM
|
 |
Senior Member
|
|
Join Date: Apr 2009
Location: J'Habite En Angleterre
Posts: 1,849
|
|
Re: New Build GA-EP45-DS3 + Q9550
Yes, in single GFX card mode, performance of the PCIe bus is identical.
As you know, your X48 is double 16x PCIe 2.0 enabled, which is great if you plan on running two 4700 X2's in CrossfireX, as they both need the bandwidth.
Your DS3 will have 16x PCIe when one slot is used (must be the primary slot to get 16x) and two 8x slots when Crossfireing. This is the same with virtually all P45's. I believe there were one or two P35's that came with dual 16x, but they were the exception. 8x lanes are perfectly good for two single GPU cards eg 2 4890's, 4850's or 4770's. I plan on crossfiring when my finances are better and expect to get perfect performance from my 8x/8x bus.
__________________
Lian Li PC-A09 Case (Full Aluminium)
Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
EP45-UD3P v1.0 @ F10e
E7400 @ 9.5 x 411, 3.9GHz, 1.425v ??c idle (stuck DTS sensors) and 57c full load (23c ambient)
TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
2x2GB Corsair XMS2 PC2-8500, @ 5-5-5-15, 1093-DDR, 2.14v tRead 7 stable
2 x HD4850 512MB @ 715 Core / 2130 Mem. CrossFireX
Scythe Musashi twin 100mm fan cooler, 40c Idle and 65C FurMark "Xtreme Burning Mode"
Intel X25-M 80GB SSD (OS and Programs) 250MB/s Read 75MB/s Write and WD Caviar Blue 640GB (Storage, Downloads, Temp Files & Folders, Page File etc)
Noctua 1300RPM 19dB case fans
Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050
This rig loads Windows 7 from the end of AHCI detection to a usable desktop in 13 seconds. 
System has passed 24 Hours Prime Blend, 12 hours of both Large and Small FFT and 50 Runs of Intel Burn Test (Maximum Stress)
http://valid.canardpc.com/show_oc.php?id=609332
|