AM2 and reverse Hyper-Threading

[Panoramix0903]

Even during April of this year appeared rumors about the fact that company AMD develops the technology, reverse on its action of the known technology Hyper-Threading from Intel. Let us recall that the latter makes possible for one processor to substitute by itself two virtual nuclei, and to divide between themselves the flows of data. Intel forewent further development of "virtual mnogoyadernosti" in favor of real mnogoyadernosti, but it does not exclude the possibility of the revival of this technology in the new performance.

According to our personal information, obtained from the familiar with plans AMD of sources, already in this year the company will open access to technology, reverse on its action Hyper-Threading. If the latter divides the resources of one physical processor nucleus, then know-how AMD will make it possible to unite the resources of two physical nuclei for accelerating the tasks, which optimally work on the mononuclear processors. For example, this will make it possible to double a quantity of decoders, and the "united" processor will carry out six instructions for time. This already by itself can become not bad answer to the output of processors Conroe, and the debut of the corresponding technology for sure takes place on the eve on 24 July.

The corresponding functionality is already build it the binuclear processors Athlon 64 x2 in execution Socket AM2. For its activation it will be required to only renew the driver of processor and BASIC INPUT-OUTPUT SYSTEM of maternal pay. Company Microsoft must let out appropriate patch for the operating systems, which will make it possible to receive two nuclei Athlon 64 X2 as one. By the way, according to the preliminary data, processor will be able to be switched into the "united" regime dynamically, depending on the type of the utilized application. It is no secret that many tasks as before win from the use of productive mononuclear processors, while not working at the lower frequencies binuclear processors.

It is amusing, which itself AMD will be simultaneously occupied by the popularization of platform 4x4, calculated for the enthusiasts, thinkers of its existence without mnogozadachnosti. Judging by everything, two sufficient different approach will be spread on the different market niches. In any case, the possibility "to unite" two nuclei into one virtual will manage to the possessors of processors Athlon 64 x2 in execution Socket AM2 absolutely free of charge, if we do not consider possible expenditures for running off new BASIC INPUT-OUTPUT SYSTEM driver for the operating system.

It is no secret that the start of technology Hyper-Threading sometimes caused reduction in the productivity, since two virtual nuclei began to dispute with the attempt to determine the priority of processing the flows of data. It is possible to assume that the antipode of technology Hyper-Threading from AMD will make it possible to avoid such annoying conflicts, and even will increase the operating speed of system.

[Panoramix0903]

THE LAUNCH OF Intel Conroe is scheduled to go on July 23rd, when partners will start rolling out the new products. The NDA for reviews is scheduled to expire around July 28th.

However, AMD has a counter-attack weapon hidden in its Socket AM2 infrastructure.

It seems that all AM2 CPUs were outfitted with a support for Reverse-HyperThreading, an architectural change which enables software to think that it is working on a single-core alone. By combining two cores, the company has been able to produce the six IPC "core" that will go head to head against four IPC "core" from Conroe/Merom/WoodCrest combo.

It seems that in certain cases, even an old AMD Athlon 64 3800+ can wipe the floor with Core 2 Duo E6300 CPU.

As we all know - the results from E6700 and X6800 against FX-62 will be nice, but the real fight with AMD is the one for the Conroe with 2MB of L2 cache. The system memory avoidance technology is working flawlessly on a 4MB cache model, but the case is reversed in the two Meg cache variant, especially in cache-hit sensitive apps, such as games.

In single-treaded apps, Core 2 Duo is expected to struggle against Reverse HyperThreading CPUs, which work at higher clock frequencies and produce higher instruction per clock ratios (IPC).

AMDs Reverse-HT is a dynamic technology, and with Microsoft's Windows update and a new processor driver, the driver will copy the graphics drivers of today's 3D accelerators. The driver will detect the app, see if it is multithreaded or not and turn the ReverseHT on, or leave it off.

[Payne]

Co takto poslat aj daco v slovencine/cestine...

Myslim ze dost vela ludi nevie cuzdi jazyk, pripadne nepochopi tvoje prispevky...

[Panoramix0903]

Plnim tvoje zelanie.

http://www.pctuning.cz/index.php?option ... 67#newska0

[KikoKK]

Plnim tvoje zelanie.

http://www.pctuning.cz/index.php?option ... 67#newska0

... fuuu ... este ze som si nakoniec vsimol tvoj doplnok
... skoro som to isiel prekladat pre jazykovo postihnutych ;-)

[Panoramix0903]

Neviem, ci ste to zachytili na Internete, ale vraj aj Intel zvazuje nieco podobne, ale pravdepodobne bude mat smolu, nakolko ma tuto technológiu AMD patentovanu uz dlhsiu dobu.