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Intel's core 2 http://www.ecsyork.co.uk/ extreme qx6700 model You've gotta like intel's core 2 duo processor chips.After struggling mightily with overall efficiency and power Cheap consumption problems in the latter day pentiums, intel came roaring back because of the core 2 duo, producing a chip that goes like stink without spinning the electrical meter into a frenzy.Since it offers a better mix of processing power, energy productivity, and overclocking headroom in contrast to athlon 64, the core 2 duo has get an enthusiast favorite, capturing prominent spots in our system guide ideas and prompting a new round of upgrades for many folks. Now originates the cpu de grce, a processor that takes selling point of the core 2 duo's modest heat output by cramming two of those chips together into a single socket, a product intel can plausibly claim is the earth's first quad core cpu.The core 2 extreme qx6700 isn't exactly cheap and run especially cool, but it will turn your spare bedroom into the computing equivalent of a government astrophysics lab and make the neighbors terribly jealous your friends are total geeks.What hath intel wrought using this quad core beast?Do four cpu cores sound right in a desktop pc, and what sort of applications can really prey on such power?Let's look over.Core 2 duo times two compatible kentsfield We won't dwell too long on the main features of the core 2 extreme qx6700.This device, which lived its youth going by the code name kentsfield, really is two core 2 duo chips mounted together for a passing fancy package.If you've always wondered more about the core 2 duo's basic technology, you might want read our review of that processor.Intel has used this multi chip packaging technique a long time ago to create"Dual basis"Cpus, including"Presler"Pentium chemical.Lashing together two separate chips versus making one large chip makes good sense from an economic standpoint, because smaller die areas makes for higher yields of good chips from each wafer.The end result of this multi chip fusion is a processor that plugs into a regular lga775 style socket and packs four processing cores alongside a total of 8mb of l2 cache.Cosmetically, it looks those world like any other recent intel desktop cpu. The core 2 overwhelming qx6700 But here's a fancy representation intel came up with to Polo Ralph Lauren Outlet UK show what's under the hood: The core 2 risky qx6700 runs at 2.66GHz on a 1066MHz front mentorship bus, So its clock speed matches that relate to the second fastest Core 2 Duo, One particular E6700. (The core 2 extreme x6800 is stomach fat at 2.93GHz. )Intel probably chose not to push any harder on clock speed to keep the qx6700 inside of a reasonable power envelope.The e6700's heat rating, or just tdp, is certainly 65w, since the x6800's is 75w.Fittingly, the qx6700's tdp is strictly twice that of the e6700 at 130w.That's quite enough heat producing for a desktop processor, and intel has brought a 130w thermal envelope for pentium extreme edition cpus that use this same lga775 infrastructure.The truth is, the qx6700 should be compatible with many existing core 2 compatible motherboards via just a bios update.Some mobo makers have already published matches lists for kentsfield.But then, intel says previous alterations of its own d975xbx"Badaxe"Mobo aren't just for use with the qx6700, so there's nothing certain.You'll want to check with the motherboard maker to ensure compatibility before getting one done.The particular qx6700 is an extreme edition processor, it incorporates a customarily robust price tag of $999 and an unlocked upper multiplier to facilitate easy overclocking.Intel also Women's Short Sleeve Shirts plans to introduce a less expensive core 2 quad q6600 cpu during the first quarter of next year.That health supplement will run at 2.4GHz and also a TDP rating of 105W.Quad core's features challenges The core 2 extreme qx6700 may be the apex of awesomeness in processor chips today, but it does face some formidable motion challenges, both due to its own nature and since of external factors.As a multi chip present, the qx6700 contains two copies of a comparatively well integrated dual core design.The two cores on each chip share a 4mb l2 cache totally, complete with dynamic partitioning and opporutnity to hand off ownership of data from one core to the next.Studying again can be, the is intergrated between the qx6700's two chips is less than ideal.They aren't occupy the same package, their only means of message is the system's front side bus.The two chips must coordinate to guarantee the sanity of the contents of their respective l2 caches via this bus.That will sometimes mean writing modified data out of one chip's cache into main memory and then reading it back into the other chip's cache efficiently eternal operation in cpu time.Both chips use this same bus to talk with other system, along with main memory and i/o devices.Perhaps even, the use of three electrical loads on the bus cpu chips and the core logic chipset's north bridge matters.Someone in order to overclock his system's fsb may find less success with a core 2 quad or qx6700 than with a standard issue core 2 duo.If so much sounds complex, just wait until you dig into the solution issues.In order to use multi core processors, computer software must execute by means of multiple threads.In today's market, very few games and not many other application are multithreaded.We do try to utilise multithreaded applications when possible in our cpu test suite, but that's more hard to do for four cores than for two.Lots of early optimizations for multi core processors only use two threads, so their all round benefits are fully realized on a dual core cpu.There are reasons for this case.In particular, our test apps, the mp3 development program lame mt, employs a technique called linear pipelining that processes a portion of its work one frame ahead of the main thread and then buffers the result later.This method uses only two threads and can't utilize more than two cpu cores, but it is relatively simple to program.The thread preparation mechanism in windows presents another challenge for quad core processors, because it doesn't always make the foremost decisions.During our assessments, as an example, we found that the core 2 extreme qx6700 was turning in considerably lower performance running the same single threaded task pov ray scene render the like clocked core 2 duo e6700.This behavior was consistent across multiple benchmark runs and a bit puzzling, until we looked at the windows task manager as this procedure ran.Seems the rendering work was bouncing around across all four of the qx6700's cores, playing havoc with cache locality etc.For part, you can expect the core 2 extreme qx6700 to perform like a core 2 duo e6700 in applications that use just one or two threads, but the qx6700 may prove slower there are times when due to additional bus overhead or bad thread management in windows.For sure, when courses use more than two threads or more than two apps are running at once, the qx6700 will pull the tab as well as pop open a can of whupass.We've got some applications like that in our test suite, so you can see now quad core's true potential.That opportunities, that brings to mind, will likely be more fully realized by future applications, rather games.Software developers know that multi core processors are the future, and visible game development houses have been working on game engines that use multiple threads to handle various tasks.Daylights, they almost have to given that the xbox 360 and the playstation 3 have multi core cpus.Industry giants like microsoft and intel have been pouring resources into helping the purchase to prospect to multithreading happen, and i'm convinced that it's going to.If you just aren't convinced, perhaps a couple of argument that intel forwarded to us from key game developers will help.This is tim sweeney, founder and director of epic games:Multi core working out is the new standard for pc games, and we at epic are thrilled to see intel leading the forward with core 2 extreme.Its four good performance cpu cores enable a new level of realism in games, with life-Like physics simulation, spirit animation, and other computationally thorough systems.Here is gabe newell, ceo and co founder of valve:Quad core will change every facets of pc gaming.It can change how we create our games, how we supply our service, and the way we design our games.The scalability we've seen in graphics over recent years will now extend to physics, ai, toon, and all the systems which happen to be critical to moving beyond the era of pretty but dumb games.I don't think these guys are just issuing blanket statements of support in a position play nice.This isn't been their style, traditionally.In, we will soon have more coverage of the specifics of valve's multithreading efforts very soon, so keep tuned in for that.Between now and when those next demographic game engines arrive, owners of quad core processors will have to find other ways to make best use of their cpus.The test results on the examples below pages offer numerous examples of applications that use four threads, and outside of that, often there is the prospect of really, really good multi tasking.My initial reaction is that it's not necessary four cores for good multitasking.Despite continual abuse, my current athlon 64 x2 based desktop system rarely slows, of course, if it does, easily in the market cpu time isn't the likely culprit.On the other hand, i sure didn't complain about having four cores at my beck and call.