 So today we're going to be unboxing the Intel Core i5 2500K This is one of the best value processors out of their new Core i5 and Core i7 second generation series of chips, so the first thing I need to tell you guys about a Core i5 2500K versus an i7 2600K is that the difference is that the Core i5 does not support hyper threading so that means that you have four physical cores just like each other and You also have hyper threading on an i7 series processor now another thing that is well I guess you could call it missing on an i5 2500K is 2 megs of cache So it only has 6 megs of cache versus 8 megs of cache although This has not been demonstrated to make a very big difference in terms of performance now This is this is meant more as a comparison against between the 2500K and the 2600K than anything else I'm going to show you guys some of the other comparison points So one of the other things is that this 2500K is clocked at 3.3 gigahertz Versus the 2600K is clocked at 3.4 gigahertz now that probably doesn't make much of a difference because these are both Because of that K designation Fully unlocked and unleashed processors that means that with good aftermarket cooling Whether it's air or liquid you can take this processor well beyond the stock frequency and Overclock the snot out of it regardless pretty much of which motherboard you're using because we are no longer dependent on the motherboard for much beyond really the Power delivery to the CPU you don't have to overclock the QPI or the front side bus or any of that stuff any longer You just turn up the multiplier on these K series processors So they're definitely worth the extra couple bucks over the non K chips K series processors also have slightly upgraded on board graphics versus the non K chips So this uses the HD 3000 engine whereas even an i7 2600 uses Intel HD graphics 2000 Mind you if you're using a K series chip, and you're not using a z68 motherboard Then you're not going to be able to use that unlocked multiplier to overclock and the onboard video at the same time because H67 does not support overclocking and p67 does not support onboard video So that's an interesting Sort of situation there. Here's the included heatsink It has pre-applied thermal compound as well as a copper slug for better contact and better mounting pressure You can see it's slightly raised with the CPU core itself. We've got an 80 millimeter fan on the top that uses PWM 4 pin controls to Do what it needs to do? Oh whoops I dropped that back in but I actually can't do that So I'm going to show you guys the core i5 2500k as I said this is one of the better values because especially for gamers and overclockers Hyper-threading doesn't make that much of a difference since most games out there are not going to use more than two to four cores So this guy even though it doesn't have hyper-threading performs extremely well when you turn up the frequency It comes with a little case badge as well as a little warranty booklet with Installation instructions in there too. So remember guys. This is LGA 1155. That means you cannot please please I can't stress this enough. You cannot install this in your old p55 motherboard on LGA 1156 They are not compatible even though they do look quite similar You will need a p67 or an h67 motherboard in order to use this chip now We are still using dual channel DDR3 So you don't have to upgrade your whole platform But you will need to upgrade your CPU and your motherboard if you want to take advantage of the sandy bridge That's the code name second generation Intel core i5 and i7 processors So thank you for checking out my unboxing of the 2500k Don't forget to subscribe to Linus Tech Tips for more unboxings and reviews and other great tech videos