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Old 06-18-2008, 03:24 PM   #1
solodude23

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Default PCI express x16 vs. PCI express 2.0 x 16

I am finally about to order my parts to build a new computer but I have one question. If the video card you are getting is PCI express 2.0 x16, does the mobo need to be the same or is x16 ok?

Thanks!
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Old 06-18-2008, 03:44 PM   #2
Masaq
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Default Re: PCI express x16 vs. PCI express 2.0 x 16

2.0 is both backwards and forwards compatible with 1.x, you won't have any problems at all. All that'll happen is that the card will be throttled to the maximum bus bandwidth of the mobo, 0.25GB/s instead of operating at 0.5GB/s.


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Old 06-18-2008, 04:11 PM   #3
solodude23

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Default Re: PCI express x16 vs. PCI express 2.0 x 16

Ah I see.

Would that make a notable difference?
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Old 06-18-2008, 05:56 PM   #4
Bamboo

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Default Re: PCI express x16 vs. PCI express 2.0 x 16

Right now all the gfx cards out can't even max out the throughput of PCI-E 1, so from that standpoint it is not yet necessary. But, it does allow more power to be delivered to the GFX card through the slot. Considering many of today's cards are requiring 2 extra power supply cables on top of what they get from the PCI-E 1 slot, this is a good thing.

Look up PCI 2.0 on Wiki for more info.

If you are buying a motherboard new anyway, not REALLY necessary or a deciding factor, but the new just released Intel P45 chipset boards does support it. It is a very good chipset and getting lots of good reviews. Not a huge step up from the p35, but still an improvement.

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Old 07-14-2008, 09:53 AM   #5
bluewolf
Default Re: PCI express x16 vs. PCI express 2.0 x 16

I am looking to purchase a vid card as well...as i understand I can use a pci express 2.o x16 on my 1.0 x16 mobo...my question would be would it be worth the small amount of upgrade i would be receiving?

Example of cards i might purchase would be the following...

XFX PVT98FYDDU GeForce 9800 GTX(G92) XXX 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card $249

or

EVGA 640-P2-N829-AR GeForce 8800GTS SSC 640MB 320-bit GDDR3 PCI Express x16 HDCP Ready SLI Supported Video Card - Retail
EVGA SSC Edition overclocked at 576MHz at $179

Would it be worth the extra $$ for the 9800?

Also is a 600 W power supply large enough for these cards?
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Old 07-14-2008, 05:18 PM   #6
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Default Re: PCI express x16 vs. PCI express 2.0 x 16

personally i would get a 8800GTS G92, all the 9800GTX is, is a GTS G92 clocked higher.....but the 9800GTX's r good cards...and yes a 600 watt psu would work just make sure if u get the gtx that ur psu has 2 PCI-E connectors and the right amperage.
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Old 07-14-2008, 09:58 PM   #7
Bamboo

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Default Re: PCI express x16 vs. PCI express 2.0 x 16

@bluewolf,
I wouldn't go with either of those cards. If you look at the reviews of the new ATI cards, even the 4850, that you can find for $160, can equal most scores of the 9800GTX, and beats it in some.
Also, the 9800GTX is dropping a lot in price in the next week or 2, down to list at $199. Nvidia realizes the 4850 beats it, for a cheaper price, so they are dropping that card and replacing it with the 9800GTX+ model. Kind of a joke if you ask me.
Even better would be the ATI 4870 that lists for $299 (will soon be able to find it much lower with rebates). That card is blowing Nvidia out of the water, causing them to drop the prices of all their new cards.
See:
NVIDIA GeForce GTX 260 and GeForce 280 GTX Price Cuts Now Official
So the 260 should now list for $299 trying to compete with the 2870, and the 280 for $499. SO in like 2 weeks, they lowered their price from $650 to $499 trying to compete.

Here is another article posted today:
GeForce GTX 200 ''Worst Product Launch in the History of NVIDIA'' - Vendors

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Old 07-14-2008, 11:26 PM   #8
Anderson29
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Default Re: PCI express x16 vs. PCI express 2.0 x 16

good looking out bamboo
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Old 07-15-2008, 12:46 AM   #9
bluewolf
Default Re: PCI express x16 vs. PCI express 2.0 x 16

Thanks for the input....I was just about to jump the gun when I saw this latest post by Bamboo. I've seen a price for the ATI @ $199 but would love to see it at $160.

Also to put more in perspective here is the following of what I am putting together....
p35 NEO2 MOBO
CORE 2 QUAD Q660 (4*2.4GHz -1066F-8MB)
$GB DDR 880MHz memory
600w power supply
160 -720 sata2 hard drive
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Old 07-15-2008, 11:26 AM   #10
Bamboo

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Default Re: PCI express x16 vs. PCI express 2.0 x 16

@Bluewolf
If you want the forum to take a look at the stuff you are considering, go to newegg.com and create a public wish list and post a link for us. That way we can help you pick the right parts at the right prices. Lots of good tech guys here happy to help.

Newegg.com - Once You Know, You Newegg

You may need to make an account, but you shouldn't have to put in a credit card or anything. Just an e-mail and password.

I would recommend with the above list you add an aftermarket CPU cooler as well, because the q6600 really likes one. (I have a q6600 running cool at 3.0GHz with an aftermarket cooler). Also add some good thermal paste in. The new stuff from OCZ is getting 1st place in a lot of hard core tech site reviews.
Newegg.com - OCZ OCZTFRZTC Freeze Extreme Thermal Conductivity Compound - Thermal Compound / Grease

Here is a link the the 4850s on sale
Newegg.com - Radeon HD 4850, Radeon HD 4000 series, Desktop Graphics / Video Cards, Video Cards & Video Devices, Computer Hardware
If you live in another country, I'm sure they should have rebates on some of them as well. Just remember the factory overclocked ones should be out any day now, and after rebates will probably be around $199.
Examples:
Powercolor preparing a 2GB HD 4850 card
Sapphire's Toxic HD 4850 comes soon
Sapphire's new HD 4850 pixellized

And I was wondering why you are choosing the MSI motherboard. They make decent stuff, but they just can't seem to put out as good of boards as Gigibyte and Asus. Especially with regards to BIOS updates. Not saying they don't make decent boards, just that the ASUS and GIG almost always place higher in tech reviews.

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