if there is a significant price difference get which ever is cheaper, if there is not, get the 3570k

 

Im switching over from AMD, and just read this in hopes of some insight; now I am paranoid of heat.... something AMD always never had trouble with.... AGH!

Still waiting for people who know more bout Intel posts to help me and you out! Lol.

 

Don't worry

My 3570k runs 4.3 at around 60C with a CNPS10X Performa in Push/Pull

Expect 3-4C difference when you use the 212

You will be safe at that amount of heat

 

i was in your shoes alil over a month ago and im happy i switched from 955 to 2500k. i would of went with 3570k but alot of 3570k cant oc high due to heat issues. im now running 2500k at 5ghz at 80c stable and let me tell you its like night and day switching from amd to intel

 

I currently have my i5 3570K @ 4.2GHz with 1.192V. It seems like a decent voltage for my overclock. Temps when idling are in the low 30s. During gaming, the highest I ever see is 60C, and that is pretty rare for me. In benchmarks (P95 and IntelBurnTest) it does hit 70C. If you plan on gaming and everyday browsing, temps should not be much of a concern unless you get a really bad chip. If benchmarks are all you do, it'll get hot, but so would any other chip. Ambient is around 20C. I could probably go higher, but I'm fine with 4.2GHz ATM.

 

Yes, the 3570k does indeed run hotter than the 2500k. It's still slightly faster per clock though. The 2500k is $200 atm on Newegg with rebate. I'd just get that and save the $30. You will get higher clocks on the 2500k on air, so any performance difference will be neglected. Overall you'll probably gain performance with the 2500k and 212.

 

My 2500K is running at 4.3GHz and tops out at 65c under IntelBurnTest.

Two bad things about that is that my room temp is 32c and only using 1 fan for a push on a radiator as I broke a fin off the 2nd fan which was the pull.

It really depends on the price of each in your case. Either would be acceptable for a 4.3GHz overclock.

 

Quote:

Originally Posted by Zhimeng

Im switching over from AMD, and just read this in hopes of some insight; now I am paranoid of heat.... something AMD always never had trouble with.... AGH!
Still waiting for people who know more bout Intel posts to help me and you out! Lol.

The 2500k should be fine since it runs much cooler than the 3570k even though the 3570k uses less voltage and actually puts out less heat. Intel used grease between heat spreader and cpu on the 3570k which is the cause of it running hotter than it should. The 2500k is soldered. Here's someone that took off the heat spreader and replaced the grease with a better compound which lowered temps.

http://translate.google.com/translate?hl=en&ie=UTF8&prev=_t&sl=auto&tl=en&twu=1&u=http://pc.watch.impress.co.jp/docs/column/sebuncha/20120511_532119.html

I originally planned to do this until reading some threads here where people tried and damaged the cpu. There's no way I'm going to attempt it now.

Thanks for all the replies. I'm going to go with the 2500k barring a miraculous price drop on the 3570k since the 2500k is $20 cheaper and there's no microcenter around. It'll probably be easier to find a decent $140- motherboard for the 2500k too. The only game I play is starcraft 2 which is very cpu intensive and it'd be nice to stream. I also play poker and it actually is very cpu intensive which is kind of annoying since it doesn't start lagging until I get to 19 tables and I never go over 30. It's the main reason I'm upgrading. Other than that I'm fine with the dual core I'm still using. Because I don't really do anything else I don't need any of the benefits the ivy has over the sb. It'll be nice to have something that has a reputation for being reliable too even though ivy will probably be fine. I'm trying to do this as cost effectively as possible since everything else I do would only require a netbook. I feel like an oc 2500k is massive overkill 80% of the time, but I've gotta have it for poker and sc2.

 

I was in the same position where i went to microcenter to buy the i5 2500k as well as the asrock extreme 4 motherboard...

the i5 2500k was going for 159.99
the asrock was going for 179.99
total = 340 USD

i was told by one of their staff that if i went for the i5 3570k and the asrock motherboard as a combo they have discounts.

so.. i ended up paying for
i5 3570k = 184.99
asrock moterboard= 80.00
total = 264.99 USD + 8.75% tax of course

thats why i went for the 3570k and i do not regret it
if you do live near a microcenter you should look it up. my i5 3570k is doing 4.3ghz with the 212+ ~ 75c using prime95 but never gets higher than 60~65c when gaming

 

I would definitely do that, but the closest microcenter is about a 6 hour drive away one way.

 

I would get the 3570K if you are buying new.

However, a used 2500K at a good price is far better price/performance.

 

Quote:

Originally Posted by guitarizt

I would definitely do that, but the closest microcenter is about a 6 hour drive away one way.

Glad that helped
EDIT: make sure you check out with them if the deal is still there, i think it was limited time offer, better check it out if you were to drive 6 hours one way

 

I mean it'd end up being more for me to drive 12 hours to mc than to just pay the normal price online from anywhere else.

 

The 3570K has the ability to be undervolted. The stock voltages I have seen are too high for the default settings. Find the frequency you want to run and then keep knocking the voltage down and stress testing. Once you reach instability bump it back up one notch and you will be good to go. I think under 70C @ 4.3GHz is definitely possible.

 

I vote 3570K. I just recently made the same choice and decided that I will be keeping this setup for about 3 years, and eventually, when graphics cards actually make use of PCI-E 3.0 I'll be glad I have it. The second gen i5 procs don't support 3.0.

 

Thanks for all the replies. I was so jaded by the heat issue with the ivy bridge that it wasn't until now that all the posts started making sense to me.

Most the time I won't be taxing the cpu so I probably don't even have to worry about heat, and it's awesome that everyone is saying it doesn't go over 65c gaming.

Second, I'm not sure why I was so dead set on running the 3570k at 4.3 GHz when 4.2 GHz is faster than a 2500k at 4.50 GHz. I should be totally fine with the 3570k at 4.20 GHz.

Third, It uses less power and in the official ivy thread some people think the ivy will be more resilient than sandy bridge.

It'll probably be another month before I can afford everything, and by that time I might just decide to hold out until black friday just in case. I might be taking a road trip through california in nov too and I could stop by microcenter.

 

I actually changed my mind again because the thermal paste won't last forever and it doesn't sound like it's that great anyways. I'd like this to last a while since I don't need to upgrade often.

"Its cheap tim and they know it, when i cut off my ihs the tim was so dry it would flake off."

http://www.overclock.net/t/1275127/verified-intel-does-not-use-cheap-thermal-paste-inside-the-22nm-ivy-bridge-desktop-processors#post_17576997

 

Primarily the 3570k runs hotter than the 2500k because the 3570k uses really crappy TIM under the IHS, whereas the 2500k IHS is actually soldered. If you are willing to remove the IHS and replace the TIM of the 3570k then it should actually run cooler than a 2500k.

 

I was going to do that until I read all the posts of people messing it up. It seems like it'd be easy to do, but it was like one out of three people who nicked the board or die. It seemed like they were being super careful too. I'd have to imagine there's at least a 1/4 chance I screw it up so that's an extra $57.50 right there.

 

It's not going to be literally 10% faster in CPU-oriented scenarios, particularly in gaming expect a 3-4% boost if you aren't really GPU-limited compared to the same clocks on the 2500K.

Clock speeds don't kill Ivy, voltages do. There is a voltage wall to every chip past which temps skyrocket. It is possible to get decent 4.2-4.5GHz overclocks at a relatively low voltage while keeping temperatures under control. I think I've even seen some 4.6GHz not significantly above 1.20v.

 

Its very easy to remove the IHS, dismantle a razor blade and use one of those blades. Done patiently, you won't mess anything up you just need a steady hand.

 

I vote 2500K

 

Quote:

Originally Posted by ketxxx

Its very easy to remove the IHS, dismantle a razor blade and use one of those blades. Done patiently, you won't mess anything up you just need a steady hand.

I mean it seems easy to me too and I've looked at every video I could find on youtube and read a lot of posts. The tape trick on the blade seems like a good idea, but messing around with a $230 cpu when I'm not 100% confident in my abilities to remove the IHS sounds like not fun.

I could always remove it after 3 years so I don't void the warranty, but it sounds like it's much harder to get the IHS off after the cpu's been used. I wish intel would just solder the ivy cpu's like the sb and there wouldn't be this problem. Just raise the price. They're already so close in price already, but right now you have some percentage of the market going sb instead of ivy because of the cheap thermal paste.

 

A review came out recently and is in the news section where they removed the IHS on IB i5s and tested 5 of the top thermal pastes over and over again and only saw a 2-3 degree drop at load when using decent air cooling.

In my mind it is not worth pulling the IHS for such a small gain.
I am buying a new proc next week and am going with the 3570k because of its lower heat generation (less heat, harder to dissipate it) and higher temperature limit.
You can safely run an IB proc up above 80c without worry and I plan on keeping mine around 4.5 with H60 in push/pull.

 

What about longevity of the ivy cpu's because of the grease on the IHS? Will I start seeing higher temps after 3 years? I'd like this this to last me 5+ years. I love the 3570k since it runs with less power, but my biggest concern is the grease wearing out on the IHS.