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I5 3570K vs 2500k for OC?

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December 16, 2012 2:25:41 AM

So i've been looking at CPUs for a future build, and I'm kinda stuck between these two. The i5 3570k is the newest chip from intel, but I hear it doesn't OC very well, even with a good cooler. The 2500k is .1 GHz slower before OC, and it is last gen, but I hear it OC very well, up to 4GHz easy.

I plan to use the NZXT Havik HSF for CPU cooling.

More about : 3570k 2500k

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December 16, 2012 2:35:27 AM

randomguy1234567890 said:
So i've been looking at CPUs for a future build, and I'm kinda stuck between these two. The i5 3570k is the newest chip from intel, but I hear it doesn't OC very well, even with a good cooler. The 2500k is .1 GHz slower before OC, and it is last gen, but I hear it OC very well, up to 4GHz easy.

I plan to use the NZXT Havik HSF for CPU cooling.

the 3570k overclocks well its only when your after the insane overclocks the 2500k is easier so unless your expecting 5ghz mark get the 3570k and the pci-e 3.0 that comes along with it. clock for clock the ivy part is better too.
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December 16, 2012 2:38:44 AM

The 2500k OC's far further.. why? Because the temps are significantly better than Ivy Bridge. Ivy Bridge gets really hot when it comes to overclocking, moreso than Sandy Bridge.

However, clock for clock is better on Ivy bridge, as Jason stated, so that means 4.4 GHZ on the i5 3570k is around the same as 4.7 GHZ on a 2500k. The Ivy Bridge also comes with full support for PCIe 3.0, which is handy (Although current gen cards don't even saturate PCIe 2.0.

I would go for the i5 3570k for the newer technology.
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December 16, 2012 2:43:40 AM

JJ1217 said:
The 2500k OC's far further.. why? Because the temps are significantly better than Ivy Bridge. Ivy Bridge gets really hot when it comes to overclocking, moreso than Sandy Bridge.

However, clock for clock is better on Ivy bridge, as Jason stated, so that means 4.4 GHZ on the i5 3570k is around the same as 4.7 GHZ on a 2500k. The Ivy Bridge also comes with full support for PCIe 3.0, which is handy (Although current gen cards don't even saturate PCIe 2.0.

I would go for the i5 3570k for the newer technology.


Exactly. Also if you have the best cooling (The same required to get SB to 5GHz), you can get IB to 4.8 GHz easy, and at 4.8 GHz it is better than anything the i5-2500k could get to. Also it uses far less power.
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December 16, 2012 2:44:16 AM

Comparing the 3570k vs the 2500k..

2500k@4.2Ghz = 3570k@4.0Ghz

Also Ivy has the 3.0 PCI express, but unless you're running SLi/XFire most cards can't completely use the 2.0 interface.

Ivy bridge CPU's are more intolerant to heavy voltage where as most people say not to push over 1.3v into them. At 1.4v the Sandy will start getting hot but I don't recommend 1.4v or higher for 24/7 use on the SB.

Yeah, SB's clock easier and they are more tolerant to mistakes. However the 3570k will usually make it to 4.2Ghz with relative ease where the SB will run to about 4.4Ghz with the same ease. Once you start going for the more risky clocks/voltages beyond 4.5Ghz the SB is going to be a bit easier to keep cool and stable than the IB. But the IB will outperform the SB if it's clocked the same.
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December 16, 2012 2:48:02 AM

They are right, the 2500K is the way to go if you are into overclocking as it does run cooler. The 3000 series K chips still overclock really well if you can cool them well enough. My 3770K runs 4.0ghz easy on stock voltage with decent temps cooled by a CoolerMaster EVO and its in a microatx case.
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December 16, 2012 2:50:54 AM

The difference in performance is so close in all reality you won't notice the difference. We can argue the fact that the SB is slower, but if you're wanting to dabble into overclocking the SB is going to be easier on you and much more tolerant. :) 
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December 16, 2012 2:52:25 AM

thanks for the feedback, it helped a lot.
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December 16, 2012 2:53:31 AM

Best answer selected by randomguy1234567890.
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December 16, 2012 2:55:37 AM

You're welcome! Don't forget to let us know how the build goes! :) 
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December 16, 2012 3:21:37 AM

Well, I still need about a $1000 more, but here's my build:

NZXT Phantom
i5 3570K :) 
ASRock Z77 Extreme4
NZXT Havik 140
G.SKILL Sniper 8GB (currently included w/ motherboard on newegg)
EVGA gtx 680 ($410 on tiger direct)
EVGA SuperNOVA 750w
Seagate Barracuda 500Gb 7200 RPM (will buy a SSD later)
Some random DVD burner
Some random wifi adapter
Zowie AM
and a good keyboard down the road
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December 16, 2012 4:25:37 AM

If you haven't been the owner of an SSD yet, do it. I went from a Velociraptor to a Vertex 4.... Let's just say the Velociraptor was a turd burglar compared to the speed the Vertex 4 gets. Windows boots in less than 10 seconds, loading things like Diablo 3 are instant, and best of all; there's NEVER any wait on anything in windows itself unless it has to access one of the four immobilized magnetic frisbee housings (Mechanical Drives) in my rig. :) 
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