Overclocking Preview Bulldozer 8150

[Vesku]

There go my concerns that power management and TDP might make OCing BD a bit of a chore.

 

[RussianSensation]

4.8 GHz on an Antec Kuhler is rather disappointing since the chip was designed for high clocks. Sandy Bridge can do better than that and it's almost a year old now.

We don't know the voltage they used to achieve 4.8-5.0ghz overclocks though. Is it safe for 24/7 operation or similar to the reckless 5.2ghz overclocking of SB on the Asus board?

Either way, without knowing IPC of BD, the 4.8ghz is nothing special because SNB can get very close and it has a massive IPC advantage over Phenom II.

 

[carnage10]

What AMD doesn't want you to take away from this PR stunt:

Even at 5.9 ghz under phase change, BD is still slower in single thread performance than SB @ 5ghz, and MUCH slower than a 2600k in multithreaded performance due to only managing to have one module/2 cores active at that clockspeed

Would've been cool if they pushed it til it popped, but they might not have been allowed to destroy the only functioning BD chip in existence

 

[LOL_Wut_Axel]

We don't know the voltage they used to achieve 4.8-5.0ghz overclocks though. Is it safe for 24/7 operation or similar to the reckless 5.2ghz overclocking of SB on the Asus board?

Either way, without knowing IPC of BD, the 4.8ghz is nothing special because SNB can get very close and it has a massive IPC advantage over Phenom II.

They said they got a max of 5.5GHz on air cooling. Like I said before, though, that was probably at a VERY high voltage and not good for everyday use. Given that, I think removing 500-700MHz is more in line to what should be gotten with moderate voltage.

As for IPC, I think this general rule will stick to be true: from 5% slower than Llano to 5% faster. When both cores in a module are being used, 180% performance out of 200%. Given this, you can definitely expect that an FX-4100 at 4GHz will be slower than a Phenom II X4 955 at 4GHz in multi-threaded. And given that, there's zero (zilch, nada) point in getting an FX-4000 series CPU over the A8-3870 unless they can get 1GHz higher overclocks on average, which I doubt. IIRC, the upgrade path for AM3+ is still dubious, as we don't know if AMD will stick to it for Komodo or will go the route of FM2.

 

[classy]

We don't know the voltage they used to achieve 4.8-5.0ghz overclocks though. Is it safe for 24/7 operation or similar to the reckless 5.2ghz overclocking of SB on the Asus board?

Either way, without knowing IPC of BD, the 4.8ghz is nothing special because SNB can get very close and it has a massive IPC advantage over Phenom II.

Who cares? As an overclocker for many years now, to see a modern cpu hit that speed with no cold bug is awesome. There are plenty of threads about performance and IPC but this ain't one of them. This is about the where our hobby really is, how high can you overclock the thing. We don't know a lot of things, but we know this thing handled extreme overclocking to the tune of over 8.4G.

 

[alexruiz]

Before Bulldozer set this world record, we had a whole load of wankers claiming it may not overclock as well as SB. Now, we have IPC in question. Anything else (including the kitchen sink) you want to throw at AMD? If only people bothered to read, there were 8 processors which did more than 8 Ghz in the lot provided to those lads. Almost 100% rate of 4.5-5 Ghz on air is pretty good. There were also a fair few that reached 7+ Ghz.

I guess the sour pusses here are just going to find something or the other to find fault with... You want to buy Intel SB/ SB-E/ IB, then go those threads and rave about them. You have something in particular to rant about AMD's processors, by all means do so in respective threads. However, ranting in a "world record" thread about how you're not getting a happy ending is just plain douche-baggery on your part.

Winner!

Just a few more weeks boy and girls, wait and see... all the countless words we have spent speculating will be validated or refuted in a few more weeks

 

[dma0991]

What is the record for SB overclocking?

5.7-5.8GHz should be the max as it is multiplier limited. I can't wait for a 9GHz chip so that I can use the it's over 9000 meme.

 

[BlueBlazer]

5.7-5.8GHz should be the max as it is multiplier limited. I can't wait for a 9GHz chip so that I can use the it's over 9000 meme.

Actually Sandy Bridge already hit 6GHz.

 

[ElFenix]

At the rate this idiocy is spreading, in just a few short years the english language will be all but eviscerated. What happened to the editors on these sites?

computer hardware review sites have never had editors, afaik.


years ago (well before i got roped into moderating), there was a forum here where a bot would post the articles each time. that was essentially the comment section for the article back then. i suggested they needed to hire an editor. the response was along the lines of, "you mean an editor for processors?"

 

[psolord]

We don't know the voltage they used to achieve 4.8-5.0ghz overclocks though. Is it safe for 24/7 operation or similar to the reckless 5.2ghz overclocking of SB on the Asus board?

Either way, without knowing IPC of BD, the 4.8ghz is nothing special because SNB can get very close and it has a massive IPC advantage over Phenom II.

In the Hardocp video, they show 1.5V for 4.8Ghz mate.

 

[lol123]

And 1.5V could very well be within acceptable limits with AMD's "high voltage, low current" design, right?

 

[Vesku]

Could be, 1.5V is given as the upper long term voltage for AMD 45nm.

 

[Accord99]

So, if AMD releases some benchmarks for Bulldozer before it launches it would be the end of the world and nobody would buy any of their existing products.

But there's no problem showing off world-record overclocking? Or much higher air-cooling limits than existing products?

 

[inf64]

So, if AMD releases some benchmarks for Bulldozer before it launches it would be the end of the world and nobody would buy any of their existing products.

But there's no problem showing off world-record overclocking? Or much higher air-cooling limits than existing products?

Has AMD officially ever done that? I mean release any official benchmarks before product launch?

 

[Ferzerp]

So, if AMD releases some benchmarks for Bulldozer before it launches it would be the end of the world and nobody would buy any of their existing products.

But there's no problem showing off world-record overclocking? Or much higher air-cooling limits than existing products?

It's another PR event that really doesn't indicate actual performance at all. People got similar clock speeds off NetBurst processors many, many years ago.

Without a baseline benchmark at normal speeds, this tells you absolutely nothing.

 

[Vesku]

No harm because it's just a silly record. The amount of companies and people that will alter buying behavior from such information is miniscule.

AMD has been a tight ship since Phenom I missteps. The Radeon 5xxx and 6xxx both had similarly non-existent pre-launch information.

 

[BlueBlazer]

Has AMD officially ever done that? I mean release any official benchmarks before product launch?

AMD did demo Barcelona on SPECfp benchmark, also the infamous POVray demonstration by Randy Allen.

 

[RussianSensation]

Many of you are not true overclocking folks.

If by not "true overclockers", you mean on our forum we care about a CPU that can run 24/7 100% load operation for 2-3 years without degradation or failing or claiming warranty with the manufacturers because your CPU magically failed, then no, we are not those type of XS forum overclockers.

If you think that pushing 1.6-1.7V on a 32nm chip with LN2 makes you a "true overclocker", then I am not sure you are on the right forum. Our forum focuses on giving users advice on how to achieve optimal performance within reasonable monetary means, not promote reckless overclocking, motherboards up in flames, and hundreds of dollars lost in ruined hardware parts to shave off 20 seconds off your 32M Wprime score.

Who cares? As an overclocker for many years now, to see a modern cpu hit that speed with no cold bug is awesome. There are plenty of threads about performance and IPC but this ain't one of them. This is about the where our hobby really is, how high can you overclock the thing.

It doesn't take any skill whatsoever to put 1.6V into a 32nm SB CPU and overclock it to 5.2+ghz. It looks like we are not true overclockers then because we don't promote such actions.

If an 8-core BD can do 5.0-5.5+ ghz overclocks on 1.38-1.4V on an NH-D14 style cooler, that would be impressive.

 

[busydude]

If by not "true overclockers", you mean on our forum we care about a CPU that can run 24/7 100% load operation for 2-3 years without degradation or failing or claiming warranty with the manufacturers because your CPU magically failed, then no, we are not those type of XS forum overclockers.

You got off on the wrong foot. Some posters here have said that the OC result was "lame." No one is commenting on the actual performance of the chip. During these OC'ing runs.. people just enable a single core(In this case it was a module) and OC the heck out of it.

 

[RussianSensation]

In the Hardocp video, they show 1.5V for 4.8Ghz mate.

What about it? 1.5V on 32nm SB and 4.8ghz is horrible. We have seen people achieve that on our forum with lower volts.

 

[RussianSensation]

You got off on the wrong foot. Some posters here have said that the OC result was "lame." No one is commenting on the actual performance of the chip. During these OC'ing runs.. people just enable a single core(In this case it was a module) and OC the heck out of it.

Core i7 990X @ 7.1ghz
http://www.sevenforums.com/overclocking-case-mods/145115-intel-core-i7-990x-7-1ghz.html

So what's so impressive about an 8.4ghz overclock on a processor with slow performance per clock?

I guess the same people would be impressed by a 10ghz Pentium 4. So the impressive part here is not performance, but the frequency number. I get it now.

 

[Vesku]

Different chip processes, RussianSensation, something to look for upon BD release is maximum 24/7 voltage. Did Intel ever give guidance on max safe SB voltage or is it still OC community consensus?

 

[Piano Man]

What about it? 1.5V on 32nm SB and 4.8ghz is horrible. We have seen people achieve that on our forum with lower volts.

True, but BD is suppose to be more voltage tolerant. We'll have to wait until the specs come out to see what AMD recommends for their voltage range.

 

[classy]

If by not "true overclockers", you mean on our forum we care about a CPU that can run 24/7 100% load operation for 2-3 years without degradation or failing or claiming warranty with the manufacturers because your CPU magically failed, then no, we are not those type of XS forum overclockers.

If you think that pushing 1.6-1.7V on a 32nm chip with LN2 makes you a "true overclocker", then I am not sure you are on the right forum. Our forum focuses on giving users advice on how to achieve optimal performance within reasonable monetary means, not promote reckless overclocking, motherboards up in flames, and hundreds of dollars lost in ruined hardware parts to shave off 20 seconds off your 32M Wprime score.



It doesn't take any skill whatsoever to put 1.6V into a 32nm SB CPU and overclock it to 5.2+ghz. It looks like we are not true overclockers then because we don't promote such actions.

If an 8-core BD can do 5.0-5.5+ ghz overclocks on 1.38-1.4V on an NH-D14 style cooler, that would be impressive.

First of all you clearly are new to extreme overclocking and probably know very little about it. Running from thread to thread with tear down AMD is getting kinda childish. Everyone agrees with the info available so far this looks to be less than a top performer. But in this task it has done what no other cpu before has achieved. Guys like you have thread crapped the hell out of simple threads such as this. There are plenty of threads for debating, this thread is just about how well it overclocks under extreme measures. Nothing more or less. Got it?

 

[BlueBlazer]

Different chip processes, RussianSensation, something to look for upon BD release is maximum 24/7 voltage. Did Intel ever give guidance on max safe SB voltage or is it still OC community consensus?

This reminds men of Deneb (Phenom II X4) overclock parties during pre-launch, where they got the CPUs up to 6GHz (and 7GHz). Though in the real world, for 24/7 usage is mostly limited to around 4GHz and below. :hmm: