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HD 4850 On a 939 AMD X2 4800

Forum Graphic & Displays : ATI - HD 4850 On a 939 AMD X2 4800

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sniperstorm1   07-29-2008 at 07:02:31 PM

I have a Amd System I am running now. I have a 4800 x2 Chip and Asus mother board with 2 gigs of ram.

I am going to upgrade to a HD 4850 card in the next few days.

Does anyone thing me getting 2 of them and crossfire is going to make a bid difference over just one card?

I just want to add something new to my system, as all the games I play now are running fine, I just want to get something new for it without getting a whole new system.

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elie3000   07-29-2008 at 07:34:19 PM
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At what resolution do you play, me I have AMD64@2.8Ghz with a single HD 4850 and can play everything maxed out @ 1680*1050 except crysis its at high. One HD 4850 will be enough for about a year and then get a new system and buy another hd 4850 for dirt cheap for crossfire. If you run 2 of them now they will be slowed down by your CPU anyway.

Message quoted 1 times
Message edited by elie3000 on 07-29-2008 at 07:36:15 PM
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evongugg   07-29-2008 at 07:39:17 PM
- 0 +

Do you have a Crossfire motherboard or SLI?
It only works with Crossfire motherboards.
I say that because Nvidia chipsets were very popular back then.


Message edited by evongugg on 07-29-2008 at 08:07:48 PM
------------------------------ Google is your friend and Bob's your uncle
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pauldh   07-29-2008 at 08:13:44 PM
- 0 +

Unless you are running an insane resolution I'd think you would be throwing away performance running two HD4850's with that CPU. Not sure what card you have now, but one HD4850 would be a better match for that system.

Reply to pauldh
San Pedro   07-29-2008 at 08:14:20 PM
- 0 +

Just get one to start and go from there. Also, you'll have to take your PSU into consideration, especially for crossfire.

Reply to San Pedro
AdioKIP   07-29-2008 at 08:25:03 PM
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elie3000 wrote :

At what resolution do you play, me I have AMD64@2.8Ghz with a single HD 4850 and can play everything maxed out @ 1680*1050 except crysis its at high. One HD 4850 will be enough for about a year and then get a new system and buy another hd 4850 for dirt cheap for crossfire. If you run 2 of them now they will be slowed down by your CPU anyway.



He is pretty much right. I run 2 4850's in crossfire. Every game I've tried I've been able to max out with ease without activating crossfire (with the exception of crysis). Crysis on the other hand is a great game that was just not coded well for ATI / Dual Core CPU GPU configurations so even with crossfire you see no improvement vs. 1 card. Also the 4850's are power hungry. I had a 700 watt power supply that I had to replace to handle my 4850's. (Off brand not good quality). If your power supply is not up to the task you risk damaging your system.

Based on your system I would get one now if you just had to have it, if not the longer you wait the cheaper the prices will get.

Reply to AdioKIP
evongugg   07-29-2008 at 08:36:04 PM
- 0 +

ATI Radeon HD 4850 System Requirements

450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)
Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products.

------------------------------ Google is your friend and Bob's your uncle
 Reply to evongugg
iggybeans   07-29-2008 at 11:05:54 PM
- 0 +

A quick question here. Would the fact that all Socket939 motherboards are PCI-e 1.0 and the 4850 is a PCI-e 2.0 card have an effect on performance?

Message quoted 1 times
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sniperstorm1   07-29-2008 at 11:37:44 PM
- 0 +

I am using a ASUS A8R32-MVP Deluxe motherboard. So if that helps.

I alse have a antec Truepower 550 Powersupply. So maybe just one card will be ok then.


Message edited by sniperstorm1 on 07-29-2008 at 11:41:30 PM
Reply to sniperstorm1
AdioKIP   07-30-2008 at 01:38:42 PM
- 0 +

iggybeans wrote :

A quick question here. Would the fact that all Socket939 motherboards are PCI-e 1.0 and the 4850 is a PCI-e 2.0 card have an effect on performance?



Yes this would be a factor. This would mean the card can't work at full speed/utilize its maximum bandwith.

Reply to AdioKIP
evongugg   07-30-2008 at 01:47:28 PM
- 0 +

We haven't exhausted PCI-E 1.0 yet. PCI-E 2.0 is backwards compatible with PCI-E 1.0.
You won't notice any difference.
You probably have a X8 PCI-E slot instead of X16, that we use now, which is a little limiting.


Message edited by evongugg on 07-30-2008 at 01:59:23 PM
------------------------------ Google is your friend and Bob's your uncle
 Reply to evongugg
strangestranger   07-30-2008 at 02:54:55 PM
- 0 +

if all your games run fine then just get one for that little extra boost bu then again, why spend money you don't need to.

also, about the bandwidth, could those who go on about it please show some tests which tell people how much data is going through the slot.

------------------------------ I'm a git, deal with it.

Antec 1200,PC Power & Cooling 750,Gigabyte DS4-x48,Intel Q9550@3.4 W/Xigmatek S1283,8GB OCZ DDR2 800,ATI 4870X2,X-FI>CA 640C amp>Tannoy R300/Senn 595's
 Reply to strangestranger
rynoc   04-17-2009 at 06:10:26 AM
- 0 +

I'm personally suprised people are getting such low performance, my gigabyte factory overclocked(core 700, mem 993) has played crysis @3200x1024, very high, no AA @lowest:20,average:37,Highest:57, and before you ask i play across two screens.

CPU: Q6600@stock
MEMORY: 2GB OCZ Platinum 800Mhz ( 4-4-4-12-1-32-4-4-3)
MOBO: ASUS P5K-SE
VIDEO CARD: Gigabyte HD4850 (factory overclocked edition)
PSU: Generic 400 watt (Seriously never uses more than 340 watt)

Reply to rynoc
Wolfshadw   04-17-2009 at 03:05:17 PM
- 0 +

Sniper -

I agree with Pauldh. One HD 4850 may be overkill for your system (unless you're gaming at above 1680x1050). I have the same processor and an 8800GTS-640 (@1680x1050) and I just don't see getting better performance with a better card (like the HD4850).

-Wolf sends.

------------------------------ System Specs:
Gigabyte EP43-UD3L Intel Core2Quad Q8400 8 Gig RAM
NVidia Geforce 8800GTS-640/Creative X-FI Extreme Music/Dual-Boot XP-64&Server2008
 Reply to Wolfshadw
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