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Intel LGA1155 Sandy Bridge Platform Explanation H67 P67 Locked & Unlocked CPUs Linus Tech Tips

2011-01-06
today on my video vlog we're going to be demystifying the new Intel Sandy Bridge processors and the chipsets that go with them a little bit or at least we're going to be attempting to do so now there's a few new features on these chips are a few important features let's say so let's start with Intel turbo so turbo as we're familiar with already from the core i7 original processor allows the chip to overclock itself if you have enough cooling and you're not overstepping the thermal design power so turbo processors such as the core i5 2400 are allowed to turbo themselves up up to four speed grades above their stock frequency if you're using only one core they also okay so here let's let's let's start sort of working our way along here so they are also allowed to turn up the multiplier and OC up to four speed bins above that for Speed bins so up to eight speed bins or multiplier levels on the P 67 chipset this is also the same as over here okay on the age 67 it can only use turbo mode that's it no additional overclocking so for speed bins turbo there so that is a regular turbo processor then there are completely non turbo processors in terms of overclocking we have no support on age 67 no support on P 67 and no support on z68 nothing you can overclock probably about 5% if you turn up the base clock but it's really not recommended because you can do all kinds of nasty stuff like corrupt your hard drive and just don't do it ok so then we've got unlock so an example would be like a low end core i3 alright unlocked so these ones have turbo because all the unlocked chips are already reasonably high-end chips and they also have a suffix K so the example we're using is the core i7 2600 so you cannot increase Wow okay I guess you got support for the four-speed regular turbo okay you have completely up to whatever the heck you want in terms of overclocking on p67 and you have up to whatever you want on z68 which isn't out yet so these guys you can overclock as much as you could possibly want mom tell the chip reaches its limit so ok right so if z68 is exactly the same as p 67 then what's going on here so let's talk about the other important feature of these new core iSeries processors and that is their onboard graphics so there are a few different kinds of onboard graphics built into these chips the K series chips actually have the highest end onboard graphics which is pretty funny because I know onboard graphics on P 67 so on the platform where you can actually overclock these K series chips you have no support for onboard video here we have onboard video enabled but we actually can't overclock the chips so you have the best possible graphics court on the one that is only supported on the one where you can't overclock it and it has the overclock so here we have onboard graphics enabled that is the difference between Z 68 and P 67 it has sort of the best of both worlds but it isn't out yet so these ones don't have quite as powerful and onboard graphics card so same thing here no onboard graphics supported here it's supported here it's supported and same thing here these ones have the lowest end onboard graphics and here is no and here is okay so that is the difference between all these different chips and all these different chipsets so in summary if you are not using onboard graphics and you are overclocking then your choice is going to be a K series processor and a p67 motherboard if you want to use onboard graphics and you don't really care quite as much about performance you do not need a K series processor you can get either one of these and an H 67 they're bored if you want the best of both world I guess you'll just have to wait until z68 launches at some point in the future don't forget to subscribe to Linus tech tips for more unboxings reviews and other videos about computers and what not
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