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HD3850 Looking to buy question, PCI Express 2.0?

Last response: in Graphics & Displays
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December 21, 2007 7:54:46 AM

Hi,
I built my first machine in september 06 with the following specification below. Im looking at upgrading some of the components one being the graphics card. Looking at the HD3850 some of the manufacturers state this as PCI Express 2.0. I have a ASUS M2N-E motherboard which in the manual states 1 PCI Express slot X16 it doesn't state the exact specifcation. Can someone please tell me if this card runs in a normal PCI express X16 slot or if there is anyway i can check if my slot is PCI Express slot is 2.0 compatiable. I've checked the ASUS site etc but can't find nothing.

AMD AM2 X2 4200 prcoessor
1GB (533MHZ) DDR2 Ram
550W Power supply
Nvidia Geforce 7600 GT
160GB Sata II Hard Disk
16X NEC DVD Burner.

Also although i will look at VGA charts does anyone think the performance difference from 7600GT to HD3850 will be a massive leap in fps on games such as Call of Duty 4, Crysis etc?

Many Thanks For your help.
December 21, 2007 8:33:23 AM

Your HD3850 will be backwards compatible with PCI Express 1.
Quote from Wikipedia:
Quote:
PCIe 2.0 is completely backward compatible with PCIe v1.x, so graphic cards and motherboards designed for v2.0 will be able to work with v1.0 and vice versa.[5] According to Anandtech:

The transition to PCIe 2.0 won't be anything like the move from AGP to PCIe. The cards and motherboards are backwards and forwards compatible. PCIe 1.0 and 1.1 compliant cards can be plugged into a PCIe 2.0 motherboard, and PCIe 2.0 cards can be plugged into older motherboards. This leaves us with zero impact on the consumer due to PCIe 2.0, in more ways than one.
a b U Graphics card
December 21, 2007 8:47:12 AM

The contacts on the PCI slot doesnt vary from PCI1 to PCI2, just the bandwidth. All PCI cards will fit in ANY PCI (4X or greater ) slot. Any PCI2 card will work with a PCI1 board/slot.
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December 21, 2007 11:14:47 AM

PCI-E 2.0 has double the bandwidth from 8GB to 16GB between the CPU and also doubles the power draw from 75 watts to 150 watts. Even the mighty 8800Ultra doesn't come close to using all the bandwidth of PCI-E 1.0, its more to do with power to the graphics card. I don't believe that even the so called 9800GTX could utilise all of the bandwidth of PCI-E 1.0. Its better to have these new standards in place for when the technology becomes avalible.
December 21, 2007 3:39:55 PM

Yes you will have a Huge leap in performance from a 7600GT. Maybe about 2X.
The card gets around 50-60 fps maxed out @ 1280 1024.
Check out the reviews @ anandtech.
!