Which combo would you choose and why?

[xympa]

What would be the best combo, the price is the same, have into account that I'll be overclocking (for fun) with an H100 water cooler.

Intel Core i7 2600K + GA-Z77X-UD3H

or

Intel Core i5 3570K + GA-Z77X-UD5H

The battle here is between PCi-E v3 on the IB vs the HT on the SB, right?

Also the UD5H has more phases than the UD3H.

 

[ahnilated]

They both have HT.

 

[xympa]

They both have HT.

The i5 does not have HyperThreading.

 

[bartholomew]

If its for a gaming rig, I'd say the i5 3570k. HT would do little for games.

 

[ahnilated]

Sorry, you are correct, I only saw the first i7 didn't see the second was an i5.

 

[xympa]

If its for a gaming rig, I'd say the i5 3570k. HT would do little for games.

So HT would be useless for gaming and normal applications, while the better performance per core on the IB would be more noticeable in those situations.

Are the 2MB of cache on the i7 also negligible?

In an overclocked situation wouldn't the SB's better overclocking make up for the IB's better performance per core while retaining the HT?

 

[eddieroolz]

So HT would be useless for gaming and normal applications, while the better performance per core on the IB would be more noticeable in those situations.

Are the 2MB of cache on the i7 also negligible?

In an overclocked situation wouldn't the SB's better overclocking make up for the IB's better performance per core while retaining the HT?

1. HT is not helpful for most games. Many "normal" applications benefit from HT now however, so I would not be so quick to call it useless. For instance, 7-zip sees a tangible improvement with HT.

2. IB has slightly better IPC. Nothing earth-shattering, but in a benchmark like iTunes MP3 conversion, at an identical 4.5GHz clock IB gets things done 3seconds faster than Sandy Bridge. From this month's $2000 SBM machine:

3. Overclocking is a hit and miss. Some SB chips overclock high enough that it cancels out the IPC deficit. Some others won't make it that far.

 

[xympa]

I might go for the 3570k and the better board, still gonna think about it... If anyone has another opinion I'll be listening...

Maybe I'm thinking the other way around, and the overclock on the i5 will make up for the lack of HT...

 

[xympa]

Is there any difference between an i7 2600k and a 2700k? If i could get the 2700k would be worth it over the 3570k?

 

[ahnilated]

The i7 2700k is just a higher clock of the i7 2600k.

 

[xympa]

The i7 2700k is just a higher clock of the i7 2600k.

Thanks, btw, stupid question, but the ones without the K aren't OCeable are they?

Seeing this made me change my mind about the 2600K, how hard is it to reach 4.8GHz with it?

 

[ahnilated]

The ones with the "K" are the unlocked processors so they CAN be overclocked much easier.

 

[xympa]

Still, how hard would it be to reach 4.8GHz on a 2600K with an H100.

NVM: Just came across this.

 

[bartholomew]

The 2700k overclocks better than the 2600k.
5ghz is said to be easily achieved with the 2700k.
If you want high OCs & want a high performing CPU, for gaming & otherwise, 2700k should be your choice.
If its just gaming & some lightly multithreaded work, then the i5 3570k.