can 480 also oc?

[cbn]

Why are you stopping there? The 480s were hitting 97C in some of the various benches that I saw. I'm sure the Radeon can handle more than 79C.

Does anyone know why the core temps are set high in the bios?

Is this to account for the large variation in chip quality?

 

[Unkle_Tar]

what are they set at?

 

[Tim]

This thread reaks of politics, and I refuse to believe anything that I read in it.

 

[cbn]

what are they set at?

I'm not sure, but temps seem to be set higher than other cards (with the exception of some of the X2 products).

 

[apoppin]

Why are you stopping there? The 480s were hitting 97C in some of the various benches that I saw. I'm sure the Radeon can handle more than 79C.

The GTX 480 hit 97C in the FurMark "hot-as-Hell" benchmark
- hardly real world

i am giving the radeon OVER-voltage to achieve 975/1300 and it getting hot in *games*
- the GTX 480 is overclocked further and is at stock voltage.

is that even a fair test or should i run my HD 5870 at 925/1300 at its own stock voltage?

 

[Sylvanas]

that is quite impressive. don't 480s scale better with clock rate than 5870s do too?

They should do. Since their whole geometry pipeline is now parallel across 15 SM's and that they run at 1/2 shader clock speed we should see better scaling with clockspeed from 480's than ATI's 5800series (single fixed function Geometry block).

 

[blanketyblank]

I'm also curious about the throttling. Ruby brought it up, but how safe is it to overclock these chips? If they overheat will they throttle down and give you an error message or will they melt and take your MOBO with them?
So far OCing has been pretty safe with the newer intel CPUs and my 4850 and 5770 just crashed when temps went too high. Hopefully we'll see these in reviews once these cards are actually available retail. Unless you are willing to try.
I saw someone here said a reviewer fried their 480 while OCing though so it's possible review samples may not have throttling or other safeties.

 

[Zebo]

Technically card is overclocked e.g. (480 / 512) * (1400 / 1200) = 1.09

However I'm quite surprised many reviewers have seen 800/1600+Mhz i.e. about 15% or 20% depending how you look at it.

It's a very aggressive cooler on there and nV can't release a card which will barley run stock due to later cooling inefficiencies like dust and summer so of course there is some headroom...just keep comp clean.

 

[EarthwormJim]

The GTX 480 hit 97C in the FurMark "hot-as-Hell" benchmark
- hardly real world

i am giving the radeon OVER-voltage to achieve 975/1300 and it getting hot in *games*
- the GTX 480 is overclocked further and is at stock voltage.

is that even a fair test or should i run my HD 5870 at 925/1300 at its own stock voltage?

If the voltage bump is done through software, it's fair in my view.

If you have the time, I'd also include results of the Radeon at stock voltage though.

 

[EarthwormJim]

Technically card is overclocked e.g. (480 / 512) * (1400 / 1200) = 1.09

However I'm quite surprised many reviewers have seen 800/1600+Mhz i.e. about 15% or 20% depending how you look at it.

It's a very aggressive cooler on there and nV can't release a card which will barley run stock due to later cooling inefficiencies like dust and summer so of course there is some headroom...just keep comp clean.

Nvidia has to worry about being within PCI-E spec. They're limited in TDP. I'm sure Nvidia would be more than happy to sell the cards at higher clock speeds if they could.

As overclockers, we really don't care if we go over the PCI-E spec as long as our stuff still works.

 

[apoppin]

If the voltage bump is done through software, it's fair in my view.

If you have the time, I'd also include results of the Radeon at stock voltage though.

i already published the benches of the stock reference HD 5870 vs. stock GTX 480
- PowerColor has a little bump to the stock speeds but that isn't worth testing

i just want to put HD 5870 at 975/1300 against GTX 480 at 825/1100

now you bring up an interesting point .. i can go higher with the GTX 480 if i up the voltage in SW
- shall i see how far GTX 480 O/Cs with a voltage bump?

 

[blanketyblank]

Well if the Asus boxes are any indication there should be a few software voltage tweaking 480s so we can always check those when they come out. I'd still like more info on how safe OCing the 480 is though. It already gets pretty hot at stock so if there aren't any safeties like throttling I'd probably be too scared to try.


Just saw that your 480 apparently can do software voltage already. By all means do, but let us know temps and the process you used. For example what exactly was the limit for the OC was it temps going beyond a safe level, artifacting, stability or what?

 

[cbn]

i just want to put HD 5870 at 975/1300 against GTX 480 at 825/1100

now you bring up an interesting point .. i can go higher with the GTX 480 if i up the voltage in SW
- shall i see how far GTX 480 O/Cs with a voltage bump?

Increasing the 480 GTX voltage sounds interesting. Most of us would like to see those results.

 

[EarthwormJim]

now you bring up an interesting point .. i can go higher with the GTX 480 if i up the voltage in SW
- shall i see how far GTX 480 O/Cs with a voltage bump?

Please do. I'm really curious how far you can go with your GTX 480.

 

[apoppin]

Please do. I'm really curious how far you can go with your GTX 480.

Glad to.

But short of stopping the GTX 480 fan with my finger. i seriously doubt Nvidia will send me a replacement. Someone else can be brave (first) and test overheat protection.

Right now i am finishing up with HD 5870 overclocking tests and will have the GTX 480 in this afternoon and/or evening; first i got to get a review out on a 890X ECS Mobo that is a nice upgrade over my 790X dragon CF mobo.

So far, an overclocked HD 5870 (975/1300) makes up for some lost ground against the stock-clocked GTX 480 and almost equals (or surpasses) it in a few cases (Lost Planet/L4D) that i have tested. Not bad.

But what we need to see is the OC'ing headroom of the 480 and the scaling with core speed as i overclock it - vs. 5870. This is getting really interesting

i am also going to do some benches with 8X MSAA to see the relative performance hit of each card. i should be done with this benching by Monday (with luck) .. and then i have to create the charts and make sense of it all to then do the write up.

i am also going to do my own audio test. This one will be different than any other and will demonstrate each video card's qualities much better than anything out there so far.

 

[Zebo]

Like I said you need 1000mhz to trade with 480...only question is AMDs pwr & heat levels there.

 

[apoppin]

Like I said you need 1000mhz to trade with 480...only question is AMDs pwr & heat levels there.

Not even there - in some games.

But my HD 5870 does well at 975/1300 - just 25MHz short of the "target"
- frankly, i was getting concerned for heat as it was starting to need nearly the max voltage (the tool allowed) for a very few MHz gain. 975 MHz seems the best compromise with voltage right around 1.350; i can get away with 1.3250 for most games but it is not absolutely stable there.

However, i think it would take a 5890 to consistently hit 1000MHz with good power and heat levels. i wonder if AMD is going to do it or not; officially, they are not as it now stands .. behind the scene, who knows? i guess that depends on how well GTX 480/470 are received by the consumers.

 

[EarthwormJim]

Not even there - in some games.

But my HD 5870 does well at 975/1300 - just 25MHz short of the "target"
- frankly, i was getting concerned for heat as it was starting to need nearly the max voltage (the tool allowed) for a very few MHz gain. 975 MHz seems the best compromise with voltage right around 1.350; i can get away with 1.3250 for most games but it is not absolutely stable there.

However, i think it would take a 5890 to consistently hit 1000MHz with good power and heat levels. i wonder if AMD is going to do it or not; officially, they are not as it now stands .. behind the scene, who knows? i guess that depends on how well GTX 480/470 are received by the consumers.

If they could feasibly do a 5890, I think it would have been launched with the GTX 480 (or at least more word of it would be spoken of). I just don't think yields for AMD are there yet either.

It's really neat how easy it has gotten to do voltage bumps now on video cards. It's no harder than overclocking is.

 

[tweakboy]

I don't see why not. Of course you can OC it, gl

 

[blanketyblank]

Maybe a Asus Matrix could do 1000 easily. They probably bin some of their chips for more OCing ability in addition to adding on bigger coolers and other hardware. I actually read somewhere it automatically OCs 19% so shouldn't be too hard to get that extra 6%.

Of course you lose the price advantage and sound advantage the 5870 has since these specialty cards cost more and bigger cooler needs to generate more sound.

 

[bryanW1995]

Originally Posted by Dark4ng3l
Why don't you ask Keys... Oh wait!

Why don' you cut out the trolling crap D:
Your personal vendetta is against the rules and frankly, I doubt you would be on this "mission" if you weren't behind a keyboard

agreed. we all know that you are a big amd fan. you're getting to be just as bad as wreckage.

 

[Dark4ng3l]

agreed. we all know that you are a big amd fan. you're getting to be just as bad as wreckage.

Calling me out is against the rules... And really if you think I am an amd fan than you really don't know anything at all. Go see what wreckage posts and compare it to anything I have said and if you can't tell the difference then god help you.

 

[bryanW1995]

i am calm and relaxed.

it is "mine" .. i have no clue how Nvidia does things in in Norway but i do know other European sites keep theirs. Perhaps the reviewer is going to send it on to another editor in his own tech site; we often share HW amongst our editors at my site.



Keys has an excellent track record here. IF he exaggerated *anything* it will come out when people get their cards and he would be discredited forever. He has been on this site for *years* and no one caught him cheating yet.

This is the second time that i am aware of that Keys has *purchased* a top competing card with his own money to do benching for this forum. He and i did the same thing with 8800GTS vs 2900XT.

i am sure Nvidia is not "happy" with my review; but then neither is AMD
- i have only my readers to account to and my own personal integrity; there are no other pressures on me - it does not matter if they send me review samples or not - i can afford my own HW. No one sent me my HP LP 3065 (and i say good things about it and will also point out its shortcomings). Same with Core i7 system.

You also have to realize that there is a certain jealousy inherent to human nature; to put down someone for having something that may be better or faster than they have .. and there is an undeniable tendency to minimize what that person has to make oneself feel better about themselves and their own PC.

Ok, I admit it, I am VERY jealous of you and your free h/w.

 

[cbn]

However, i think it would take a 5890 to consistently hit 1000MHz with good power and heat levels. i wonder if AMD is going to do it or not

Aren't they going forward with Southern Islands for the 40nm refresh?

P.S. I hope they use this delay in 28nm process technology to implement "sideport". Quite frankly I am getting tired of the "what is the fastest single GPU" talk. I want to know what is the fastest video that uses 300 watts and feels like a single GPU (without neccessarily being a single GPU). To me that would be the real breakthrough in delivering graphics value to consumers.

 

[bryanW1995]

Calling me out is against the rules... And really if you think I am an amd fan than you really don't know anything at all. Go see what wreckage posts and compare it to anything I have said and if you can't tell the difference then god help you.

um, I think that it isn't slander if it's true.

Are you trying to claim that you are completely impartial? You sure seem to have a vendetta against keysplayr specifically because he is a focus group member. I'm sure you would do the same if he was an amd "focus group" member, huh? Maybe you should spend more time adhering to the forum rules and less time hiding behind them.