What dissavantage i have having my 6800gt at 350/1000?

CHfan4ever

Diamond Member
Oct 1, 2004
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I bought my XFX 6800gt a week ago like.I really enjoy the performance.BUT i notice that i have the model that is clocked at 350mhz( and not 400)

Let say i have a FPS of 60 ( timedemo in doom3, with my athlon 2500xp,1gig of ram), what framerate i can gain having it at 400mhz?Do i lose A LOT having it clocked at 350? or we are just talking about a 3fps difference only?

Thanks if u can answer that question

No, i wont overclock.I already fried a 5900xt like 6 month ago, i wont do the same mistake again with a $700 card(canadiens funds,+ taxes, shipping etc....yeah its a lot).So no overclocking for me,cpu,card,memory, i just dont overclock.
 

Algere

Platinum Member
Feb 29, 2004
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It sounds like your under the impression that the 6800 GT is suppose to have 400 MHz core. In reality, most 6800 GT's are supposed to be clocked @ 350 MHz (excluding BFG).
 
Aug 19, 2004
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350/1100 are the right speeds for a GT.

Forget the 1000 points you lose 3DMark by staying at 350 vs. 400; in real-life gaming situations, its about a 5 fps difference, depending which settings you play at. Probably not worth the risk, but on the other hand, its nice to play at Ultra speeds at 1600x1200 with AA & AF, when every frame counts.
 

fzaba

Member
Jun 15, 2004
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350/1000 is normal for a 6800GT like stated above.

I too have a XFX that defaults to 900mhz memory. I feel like RMA'ing it since I generally don't like to overclock, even if it means bringing it back up to 1000mhz as it should be. RMA it for another XFX that defaults to 1000mhz or not? What do you guys think. Im sure the OP would like to know other's thoughts as well. :)

Even on XFX's site, the part # for the card shows a default memory clock of 1000mhz.:(

EDIT: And yes I am splitting hairs here performance wise, but damn, I paid for a card that should run at 350/1000 right!?:disgust:
 

Travis6586

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Aug 12, 2004
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Let say i have a FPS of 60 ( timedemo in doom3, with my athlon 2500xp,1gig of ram), what framerate i can gain having it at 400mhz?Do i lose A LOT having it clocked at 350? or we are just talking about a 3fps difference only?

I get 68 FPS in the Doom 3 timedemo with my 6800 GT @ 350/1000. I get 69.5 FPS with my 6800 GT @ 400/1100. Its not much of a difference at all. So, I figure why push the card anymore than it has to be pushed for one and a half measly frames. Until overclocking my card helps me achieve 5-10+ FPS, I see no reason to overclock.

Of course, your system may benefit more than mine does from the overclock, but I seriously doubt it. If you're really curious what kinds of benefits you'd recieve, just overclock it and find out.
 

Travis6586

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Aug 12, 2004
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Originally posted by: fzaba
350/1000 is normal for a 6800GT like stated above.

I too have a XFX that defaults to 900mhz memory. I feel like RMA'ing it since I generally don't like to overclock, even if it means bringing it back up to 1000mhz as it should be. RMA it for another XFX that defaults to 1000mhz or not? What do you guys think. Im sure the OP would like to know other's thoughts as well. :)

Even on XFX's site, the part # for the card shows a default memory clock of 1000mhz.:(

EDIT: And yes I am splitting hairs here performance wise, but damn, I paid for a card that should run at 350/1000 right!?:disgust:

I'd RMA it for a card that runs at the settings they list on their website. No reason to pay for something that doesn't do what its advertised to do.
 

CHfan4ever

Diamond Member
Oct 1, 2004
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Originally posted by: fzaba
350/1000 is normal for a 6800GT like stated above.

I too have a XFX that defaults to 900mhz memory. I feel like RMA'ing it since I generally don't like to overclock, even if it means bringing it back up to 1000mhz as it should be. RMA it for another XFX that defaults to 1000mhz or not? What do you guys think. Im sure the OP would like to know other's thoughts as well. :)

Even on XFX's site, the part # for the card shows a default memory clock of 1000mhz.:(

EDIT: And yes I am splitting hairs here performance wise, but damn, I paid for a card that should run at 350/1000 right!?:disgust:


My god my mystake.I tough it was the 350/400 part that was not normal.But i think i got one that is ok if mine is set at 1000( and not 900 like for some )

So the 2 versions are :350/900 and 350/1000, i have the 350/1000 so im perfetly normal wouf.I tough by default the gefroce 6800gt is supposed to be clocked at 400

Ohhh yeah and new system is incoming! Going from amd 2500xp to amd 3200 athlon 64 woohoo.Now ill get a major performance boost :)
 

Travis6586

Member
Aug 12, 2004
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I thought by default the gefroce 6800gt is supposed to be clocked at 400
Nope. All 6800 GT's are shipped at 350/1000 MHz, except for the BFG (370/1000 MHz). A lot of people are overclocking their GT's to 400/1100 MHz though. I guess just cause 400's a nice and even number.
 

Ylide

Junior Member
Oct 10, 2004
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I also just got (October 7th) an XFX 6800GT with 900MHz stock memory. I wrote to support and here is the answer:

>[your initial question...] The memory of my card is clocked at 450/900MHz. Every 6800GT on the market is clocked at 500/1000MHz. On your >website, you even wrote that the memory is clocked at 1000MHz. I tried using the overclocked registry mod to put it at the normal speed of >1000MHz, but it only went to 941MHz.

>[Support - 12/10/2004 12:35:34] Hi, the difference between the clocks purely depends on manufacturers BIOS release and does not reflect >on the capability of the product. At the moment, all the 6800GT`s on the market are the same basic hardware spec. Indeed, the original >clocks speeds are not so crucial as they are designed to be adjustable with the coolbits supplied. Surprised your memory clock only goes to >941 though, and would normally suggest a hardware limitation. Can recommend BIOS `optimal` defaults and ensure good case ventilation. If >possible, use a dedicated power lead to the card and avoid a Y-splitter. Please ensure you have up-to-date mainboard BIOS and drivers >installed before the graphics drivers. Regards Tony

I have an Intel D865PERLK mobo with latest BIOS, Pentium 4 3.20E (Prescott), 1Gig DDR400, WD Raptor 36.7Gigs HDDand a 430W Antec TruePower Power supply... and yes my card is connected with a dedicated power lead and the inside of my case is never higher than 42oC.

My opinion is, these days the availability of DDR3 is not that good. XFX test their cards and if the memory is faulty at 1000MHz and can run just slightly lower than 1000MHz, they mod the BIOS to 900MHz and they get one more "good" card from their card stock. Maybe I'm wrong, you tell me!
 

CHfan4ever

Diamond Member
Oct 1, 2004
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Originally posted by: Ylide


My opinion is, these days the availability of DDR3 is not that good. XFX test their cards and if the memory is faulty at 1000MHz and can run just slightly lower than 1000MHz, they mod the BIOS to 900MHz and they get one more "good" card from their card stock. Maybe I'm wrong, you tell me!

Me i got my XFX card for 2 weeks now and it came shipped with DOOM 3, you? Mine came with 350/1000 clock, so maybe its not the recent model that are underclock but the older one?Just wondering

 

fzaba

Member
Jun 15, 2004
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My card came from buy.com in the deal that didn't include Doom3. I RMA'd it today through buy.com requesting one that runs at the manufacturer's specs of 350/1000.
 

SourTimes

Member
Sep 22, 2004
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Originally posted by: fzaba
My card came from buy.com in the deal that didn't include Doom3. I RMA'd it today through buy.com requesting one that runs at the manufacturer's specs of 350/1000.


I got one at 350/900 with doom 3 combo. I upped it to 1000 and it is working fine. I am considering just flashing the bios to a 350/1000, as it seems XFX just uses the default nvidia 6800gt bios. But really, I can't be bothered it runs fine being oc'ed up to 1000, and I think it goes without saying that you thinking its ddr2 running at 450 is not the case. It's ddr3 running at 300 rather than 333.3 :). Regardless, I have had the card running fine at 400/1000 and I'm pretty sure it can go higher. But truth be told, even having it oc'ed I can't notice the difference from the card running at 350/1000, these gts are such beasts I don't think the overclock is even necessary, unless you are interested in your 3dmark scores. But, seeing as your card cannot be clocked up to even 1000, I understand perfectly well why you RMA'd it. Good Luck.
 

Ylide

Junior Member
Oct 10, 2004
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I got my card on october 7th and it was bundled with Doom 3. And it has one of the lastest BIOS, and the warranty sticker on the box is 09/04, so It was hot off the press! 700$ CDN?, where did you buy it in Canada, ifesfor? In my case, I got it from Genitech computers.
 

fzaba

Member
Jun 15, 2004
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Originally posted by: SourTimes
Originally posted by: fzaba
My card came from buy.com in the deal that didn't include Doom3. I RMA'd it today through buy.com requesting one that runs at the manufacturer's specs of 350/1000.


I got one at 350/900 with doom 3 combo. I upped it to 1000 and it is working fine. I am considering just flashing the bios to a 350/1000, as it seems XFX just uses the default nvidia 6800gt bios. But really, I can't be bothered it runs fine being oc'ed up to 1000, and I think it goes without saying that you thinking its ddr2 running at 450 is not the case. It's ddr3 running at 300 rather than 333.3 :). Regardless, I have had the card running fine at 400/1000 and I'm pretty sure it can go higher. But truth be told, even having it oc'ed I can't notice the difference from the card running at 350/1000, these gts are such beasts I don't think the overclock is even necessary, unless you are interested in your 3dmark scores. But, seeing as your card cannot be clocked up to even 1000, I understand perfectly well why you RMA'd it. Good Luck.

I think we are all picking bits and piece's from everyone's stories.;) My card can run at 1000mhz and beyond (tried 1120- tested fine), but I HATE the fact that I paid for a card that should run at 1000mhz out of the box. It is listed on XFX's site to default at 1000mhz. I RMA'd for that reason alone. It was another person here, Ylide, who couldn't get the card running at 1000mhz.

As far as your DDR2/3 comment... me=:confused: 6800GTs definitely use DDR3 that SHOULD default at 1000mhz according Nvidia- no question about it. If it is clocked differently out of the box, that is the manufacturer's doing. XFX's specs call for 1000mhz, but my comes up as 900mhz- that is DEFINITELY a problem. I paid for 350/1000 and better damn well get it, right!?!;)
 

fzaba

Member
Jun 15, 2004
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Originally posted by: SonicIce
Ok, so is there a performance differance or what?

Yes there is a difference between 900 and 1000mhz, but it isn't that big. Just big enough to get me pissed.:p
 

jim1976

Platinum Member
Aug 7, 2003
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Originally posted by: Travis6586
Let say i have a FPS of 60 ( timedemo in doom3, with my athlon 2500xp,1gig of ram), what framerate i can gain having it at 400mhz?Do i lose A LOT having it clocked at 350? or we are just talking about a 3fps difference only?

I get 68 FPS in the Doom 3 timedemo with my 6800 GT @ 350/1000. I get 69.5 FPS with my 6800 GT @ 400/1100. Its not much of a difference at all. So, I figure why push the card anymore than it has to be pushed for one and a half measly frames. Until overclocking my card helps me achieve 5-10+ FPS, I see no reason to overclock.

Of course, your system may benefit more than mine does from the overclock, but I seriously doubt it. If you're really curious what kinds of benefits you'd recieve, just overclock it and find out.

Not necessarily since you're cpu limited. You cpu can't even handle stock speeds of GT that's why you can't see noticeable differences when o/c to ultra speeds.
With a higher end cpu you can indeed see differences.
Generally I think 6800 cards like core increases up to a point.(a little more than Ultra speeds I believe is just fine even for a FX-53)
But even if your average framerate doesn't increase having higher core/mem speeds really help with your min fps which is equally important IMO. I hate really dips to teens... :)
 

Ylide

Junior Member
Oct 10, 2004
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Funny you mentioned that, because since I knew it mostly could handle the 1000MHz, I extracted my BIOS, modded it with OmniExtremeEdit from 900 to 1000MHz and run the computer with that. But, when I tried the "detect best overclocking speed" in coolbits, the program just went dead. I'm clearly going over the "safe" barrier in respect to what coolbits does to test the stability. It's pretty strange since I did run my card at 350/1000 in doom 3 for about 1 hour with absolutely no problem.
 

Zebo

Elite Member
Jul 29, 2001
39,398
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GT's been at 450/1200 for months now w/o issue. As long as you keep sub 60C you can push it. Heat kills, not speed .. I don't know where some of you get these ideas.
 
Aug 19, 2004
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Originally posted by: JBT
Originally posted by: Machine350
the stock speed of the 6800GT is 350/1000


Right. Sometimes 5 FPS can really help ewright.

I know, thats why mine is at 400/1120. I specifically said, "its nice to play at Ultra speeds at 1600x1200 with AA & AF, when every frame does count".

But he didn't ask what my card was set at, he asked "what does he lose" by running at 350/1000, so I told him. It makes c. 1000 points difference in 3DMark, but only 5ish or so fps in real-life gaming situations (at least at 1600x1200 w/AA & AF, which is what I generally play at).