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what is the differance between the i5 2500 and i5-2500k?

post #1 of 5
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which one is better?
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MKG-Cosmos II
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post #2 of 5
They are EXACTLY the same exact the k version has an unlocked multi. If you want to overclock, it would be advised to go with the k version as the bclk won't really go any higher than about 103 on SB thanks to PCIe controller being on the chip.
 
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Gsvlip Dudyrm
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Oda'maksv
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post #3 of 5
^ Yup

If you wanto OC at all really, you need a K series now.
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post #4 of 5
Thread Starter 
thanks guys
MKG-Cosmos II
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MKG-Cosmos II
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post #5 of 5
Quote:
Originally Posted by Lord Xeb View Post
They are EXACTLY the same exact the k version has an unlocked multi. If you want to overclock, it would be advised to go with the k version as the bclk won't really go any higher than about 103 on SB thanks to PCIe controller being on the chip.
That is NOT quite EXACT.


The i5 2500 has Intel HD2000 graphics, whereas the i5 2500k has HD3000 graphics.

If you're using a P67 motherboard it's not important to you, but if you will be using an H67 or Z68 motherboard and want to use it (for whatever reason), then it will make a difference.

On the other hand the k is fully unlocked, up to a 57x multiplier. However, the i5 2500 is not fully locked either, leaving BCLK aside, because it has very limited overclock potential as Lord Xeb said, you can still overclock it 4 speed bins above the highest Turbo the CPU can do.

So, for an i5 2500 that has a 3.3 Ghz clockspeed and a 3.7 Ghz Turbo on a single core and 3.6 on two cores, you will be able to set it to 4.1 Ghz and 4 Ghz respectively.


Note: the fact the PCIe controller being on the chip has nothing to do with the fact the BCLK not going reliably over 105 Mhz - the X58 and P55 platforms already had the PCIe controller on the chip, and you could overclock the BCLK. It has to do with the fact that with Sandy Bridge the clock generator for everything is on the chip instead of the motherboard, and for stability purposes it's almost locked.
Edited by tpi2007 - 6/21/11 at 3:27pm
 
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