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Processor Series 
This is the name the manufacturer gives to a series of CPUs using the same technology. You will want to make sure your chosen CPU matches the type your motherboard is designed to accept.
Core i7-4770K
Core i7-4700MQ
Intel Core i7
Intel Core i7-4770
Processor Speed 
Processor speed indicates how quickly the CPU can perform calculations. Higher speeds allow for faster calculations, meaning less wait time.
3.5 GHz
4.1 GHz
3.6 GHz
3.4 GHz
Number of Cores 
Many modern CPUs have multiple cores. The number of cores is the number of processors that make up the CPU. Having more cores allows the CPU to perform more calculations at once, meaning less wait time.
4
4
4
4
CPU Socket Type 
The socket type is the kind of connection used to mount the CPU to the motherboard. Intel and AMD each make their own types of sockets. You will want to make sure your new CPU socket type matches that of your chosen motherboard.
Update#3: I spent the last few months testing and analyzing the 4770K and now it's time to share those results with you guys. I have come to the conclusion that the VRM (voltage regulator) that Intel has integrated into the die does more harm than good. Every since I bought this chip and overclocked it, I have noticed that it's been degrading faster than my 2600K and 3770K which both were overclocked to the same frequency (4.6Ghz) as my 4770K. I have noticed that I need to add at least a minimum of 0.007 volts every few months because my CPU starts to crash out of the blue even though it used to be 100% stable when I have tested it. I bought the 4770K the first day it came out and I immediately overclocked it to 4.6Ghz using around 1.34 volts which used to be 100% stable and then it slowly started to degrade. I have kept my 2600K and 3770K overclocked to 4.6Ghz for years and they haven't degraded one bit. I'm still using the same amount of voltage on my 2600K and 3770K that I did when I first got them and they are still going strong. Haswell on the other hand wants more and more voltage to be stable at the same settings that it used to be.
Here are the results that I have recorded these past few months using the 4770K:
Month------Frequency/Voltage
June:------4.6Ghz 1.3400 volts | I got the chip the first day it was released and oc'd it to 4.6Ghz using 1.3400 volts and it was 100% stable. I was a happy camper :)
July:------4.6Ghz 1.3400 volts | so far so good but there were some moments when my system would hang but I just ignored it.
August:----4.6Ghz 1.3470 volts | I started getting random crashes even though I had made no changes to my computer or upgraded anything since I bought the chip.Read more ›
Haven't seen my son leave his room once he put it in his gaming machine. Starting to wonder what my son looks like. Wish I could give one to my boss at work and get the same effect.
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82 of 102 people found the following review helpful
I picked up this CPU for use in my Home theater setup, so that is what I will focus on... I'll leave the tech specs to others...
**Update: My CPU average temperatures at idle were 35C, using the same cooling setup on the 4770K I am seeing 32C... Also the Case ambient temps were 30C and now are 28C... Under load the CPU used to hit 69C, it now hits only 60C... This is using the same cooler as was used with the 3770K. So this CPU does appear to have a significant thermal advantage over the 3rd Gen i7 3770K...** This might be important if you are building a micro PC... Keep in mind these temps are at stock levels, I did not overclock my 3770K and have not done it on the 4770K... I bought the K option just in case I decided to do it...
This did change my "windows Experience Index" score from a 7.7 for the CPU (on the 3770K) to a 7.8 (on the 4770K)That is on a scale of 1.0-7.9 It did not change any other ratings on the system... Determine from that what you will, but my actual usage scenario is below...
Keep in Mind, This CPU uses the 1150 Socket, not the 1155, So you will need a Motherboard that supports The 1150 Socket (but will fit CPU coolers designed for 1155 or 1156 sockets)... So if you plan to upgrade you're probably going to need a new Motherboard as well...
This is my real world experience:
I run Windows 7 with Various media programs installed, These include XBMC, MediaBrowser, Media Center Master, Serviio among a few others...
The major task I use this CPU for is simultaneously serving media to 6-8 TVs and keeping my media collection up to date and organized.Read more ›
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12 of 14 people found the following review helpful
This is the third i7 4770k I am trying.I rate it 5 stars because I knew from the beginning what were my chances to overclock this with low voltage to 4.5 Ghz.This particular CPU was very easily overclocked to 4.5 Ghz at 1.265 volts,which I consider really good and adequate for my needs,using Revit Architecture and rendering models with the best option.I just wanted to advice people that any i7 4770k can either be overclocked easily or cannot,there is no middle situation.If it can overclock to a particular frequency, then by just changing the Vcore,Vciin and may be the ring voltage,then it will,if it cannot whatever you do,whatever settings you manipulate it will not,this my final statement after trying lots of settings and following lots of guides.If it does not overclock easily to your required frequency ,say 4.5 ghz,then either settle for less or sell and take your chances with another. The previous two that I tried were Malaysian origin,the third and best was Costas Rica,its not the best out there but good enough for me and for 24/7 use. My settings are CPU multiplier 45 Ring multiplier 44 Vciin 1.81 v Vcore 1.265 Vring 1.22 Ram overclocked from 1600 Mhz to 2000 Mhz(some minor fiddling with the timings) Vram 1.575 (rated at 1.5 v) All other settings AUTO.
Please my advice is do not loose your time with other settings manipulation,its a waste of time. I hope the above will help some of you Thank you
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