The comparisons to the P4 just keep coming.It might be slow, but they look to be serious overclockers. They hit 8G speed.
http://hardocp.com/article/2011/09/13/amd_bulldozer_fx_model_8150_cpu_overclocking_preview
AMD had us and a few others down to its Austin, Texas offices a couple of weeks ago and gave us quite and overclocking show with its new FX processors.
Is this the historic event ? >> AMD Bulldozer atinge 8.43 Ghz (video >> Maximum Speed | AMD FX Processor Takes Guinness World Record) a record which was previously held by Netburst single core Celeron (at 8.3GHz), and for the first time an AMD entry in top clock charts?
Edit: It does seem that only 2 "cores" (or 1 "module") is used for this run. :hmm:
AMD was conducting overclocking experiments at the tech day and had three different stations setup for us to look at. The first used a sub-$100 closed-loop waster cooling solution from Antec (Kühler series). I can't tell you much about the chip itself other than it is an 8-core FX processor that AMD was able to overclock to 4.8GHz using the Antec Kühler.
Next up was phase change cooling. Armed with a phase change cooler AMD pushed another 8-core FX CPU up to 5.894GHz at 1.632V.
AMD ended on its most aggressive cooling solution: liquid helium. Using liquid helium AMD was able to take Bulldozer to a new world record of 8.429GHz. The resulting overclocked frequency was high enough to get AMD's FX processor inducted into the Guiness Book of World Records for the highest frequency for a computer processor.
None of this tells us much about how Bulldozer will perform unfortunately. The most interesting number is likely the first number (4.8GHz) which gives you the upper bound of what to expect from an overclocked Bulldozer at home without any exotic cooling.
From Anandtech's news article:
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.
Considering that the previous world record was held by a single-core processor, I don't see what's so lame about that.They disabled 3 modules to hit 8.4 GHz.
So it wasn't an 8-core hitting that clock, but rather a dual-core.
Lame.
From Anandtech's news article:
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.
From Anandtech's news article:
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.
All that said, results of well beyond 5GHz on air were claimed on cooling solutions priced below the $100 mark!
In passing conversation, Brian and Sami mentioned doing 5Ghz on air running fully multi-threaded benchmarks.
They used 1.5V for this 4.8Ghz though.
AMD uses a high voltage/low current scheme compared to Intel's low votlage/high current, so the 1.45V needed for 5Ghz on the Sandies, makes that 1.5V for the Bulldozer quite decent. With a bit more juice it could hit 5Ghz as well.
Disabling 6 out of 8 cores and using liquid helium to reach 8.4Ghz.
[sarcasm]
I am impressed!!!!
[/sarcasm]
I disagree with that. Almost all of your high end air coolers will perform equal to or better than the box water solution they used.
As for the other parts:
on air: ~4.8ghz (meh)
on water: ~5.9ghz (cool)
Haveing 8 cores, running almost 6ghz on a water cooled pc, is bound to be sweet.
From Anandtech's news article:
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.
You realise the last world record, holder, was a Intel Celeron 352 (single core) CPU?
Since then no modern CPU has reached anywhere near that.
Today a new CPU launched, a modern one, with more than 1 core, and managed to beat that record.
As for the other parts:
on air: ~4.8ghz (meh)
on water: ~5.9ghz (cool)
Haveing 8 cores, running almost 6ghz on a water cooled pc, is bound to be sweet.
Armed with a phase change cooler AMD pushed another 8-core FX CPU up to 5.894GHz at 1.632V.
Depends on which Kuhler they used. The Khuler 620 is about equivalent to a midrange air cooler like the Hyper 212+, and the Kuhler 920 comes within striking distance of the mega-coolers such as the NH-D14.
Did you read the actual news article?
4.8 GHz was on crappy, gimped water cooling (Antec Khuler). 5.9 GHz was on phase-change cooling, which most people do not have and certainly do not use for 24/7 work.
From Anandtech's news article:
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.
I believe more than 99% of users will be just fine at 4.5GHz with an 8-core even if IPC is lower than SB
Sure they didn't mean liquid nitrogen? Liquid helium would be hardcore at 4 kelvin