IIRC, the main upsides of i7 are triple channel and HT. I've seen both i5s and i7s go up to 4GHz a lot, but I'd surmise from the number of 5GHz i7 clocks I've seen that the i7 is the one to go for for OCing.
core i5 750 or core i7 920 ???
hello all...
I have a quick question regarding which one to get from these 2 processors: core i5 750 (2.66 GHz) or core i7 920 (2.66 GHz)?
I am confused since the 2 ones seem to be similar to each other except for that the core i5 has no HT, while the i7 does have, but on the other hand... the Core i5 memory controller 1333, while the Core i7 is only 1066, and not to mention that the Core i5 has the Turbo technology while the Core i7 has not.
so I need your help in this, I need to know:
1- which one of these 2 CPUs would be faster on stock speed.
2- which one would overclock higher?
3- both would be with at least 6 GB DDR3 so which one is best ?
for sure I am going to replace the board with some one that fits them and I think it is more likely to be the Asus P5p43td pro
so now what do you say please ???
which one.... which one ?
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thank you all
I have a quick question regarding which one to get from these 2 processors: core i5 750 (2.66 GHz) or core i7 920 (2.66 GHz)?
I am confused since the 2 ones seem to be similar to each other except for that the core i5 has no HT, while the i7 does have, but on the other hand... the Core i5 memory controller 1333, while the Core i7 is only 1066, and not to mention that the Core i5 has the Turbo technology while the Core i7 has not.
so I need your help in this, I need to know:
1- which one of these 2 CPUs would be faster on stock speed.
2- which one would overclock higher?
3- both would be with at least 6 GB DDR3 so which one is best ?
for sure I am going to replace the board with some one that fits them and I think it is more likely to be the Asus P5p43td pro
so now what do you say please ???
which one.... which one ?
thank you all
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1- which one of these 2 CPUs would be faster on stock speed.
i7 will be faster in environments that actually use the multi-threading. Otherwise they're prob. comparable. It depends what you're doing.
2- which one would overclock higher?
Either or.
3- both would be with at least 6 GB DDR3 so which one is best ?
???
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It's a lot easier to help you decide which is best for you if you can describe the primary things you'll be using the machine for.
i7 will be faster in environments that actually use the multi-threading. Otherwise they're prob. comparable. It depends what you're doing.
2- which one would overclock higher?
Either or.
3- both would be with at least 6 GB DDR3 so which one is best ?
???
It's a lot easier to help you decide which is best for you if you can describe the primary things you'll be using the machine for.
2
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I am going to upgrade my PC to use it for intensive video stuff and intensive gaming
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Originally Posted by supaspoon It's a lot easier to help you decide which is best for you if you can describe the primary things you'll be using the machine for. |
I am going to upgrade my PC to use it for intensive video stuff and intensive gaming
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It makes no difference. Those are just the stock memory speeds for P55 vs X58. Both the i5 750 and i7 920 should have no trouble with memory rated at DDR3 2000+. You would of course have to set the speed in the BIOS.
Also just an FYI, the i7 920 does support Turbo Boost (and hence can use a 21x multi), but it isn't as high as it is on the i5 750. It becomes irrelevant when you factor in overclocking though.
In all honesty the extra memory channel on X58 won't make much, if any difference. The real benefit of X58 is the QPI and 36 PCI-e lanes vs 16 on P55.
Originally Posted by the magical me so what about that i7 memory controller is only 1066, while i5 is 1333 ??? how much does that make difference ? and how much the extra one memory channel makes difference over the core i5 that lacks it ? |
Also just an FYI, the i7 920 does support Turbo Boost (and hence can use a 21x multi), but it isn't as high as it is on the i5 750. It becomes irrelevant when you factor in overclocking though.
In all honesty the extra memory channel on X58 won't make much, if any difference. The real benefit of X58 is the QPI and 36 PCI-e lanes vs 16 on P55.
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here is the confusing point
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that the i7 is 3 channels @ 1066, while the i5 is only 2 channels but @ 1333
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does that mean that this way both CPUs are parallel in speed/performance ??
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Originally Posted by tK FuRY The extra memory channel makes a good difference, a larger amount of bandwidth for sure. It should be a little noticeable in tasks that need the extra memory band. |
does that mean that this way both CPUs are parallel in speed/performance ??
2
i7. They're both good CPUs but since you're into video encoding and stuff like that, then get an i7.
You're also more futureproof with the i7 as the i9 CPUs are going to be released on the 1366 socket, LGA 1156 is a dead end (unless Intel releases some kind of i6
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So if you have the money for it, then go i7
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You're also more futureproof with the i7 as the i9 CPUs are going to be released on the 1366 socket, LGA 1156 is a dead end (unless Intel releases some kind of i6
So if you have the money for it, then go i7
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i7 has a turbo mode aswell.
Originally Posted by the magical me and what about the turbo in i5 that's not available in i7 ?? how much difference does this make ? |
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True but it should be noted, the i5 has a much more sophisticated turbo mode and increases much higher than the i7 for single threaded programs.
Originally Posted by Cyberbot i7 has a turbo mode aswell. |
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Ah okay, I wasn't aware of that
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But I think the i7 would be the best choice, even if the turbo mode on the i5 is better.
Originally Posted by 003 True but it should be noted, the i5 has a much more sophisticated turbo mode and increases much higher than the i7 for single threaded programs. |
But I think the i7 would be the best choice, even if the turbo mode on the i5 is better.
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+1. Though as neuro said, it depends on what you're definition of this really is. Specifically, will you spend enough time doing encoding etc. to justify the cost. Basically, how much will you actually 'use' the advantages of ht, & is that worth it. Only you can really answer this.
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This is a very good point. While obviously the i9's will be quite expensive on release (& prob. for some time), they will go down eventually. The presence of an upgrade path is certainly something worth considering.
Originally Posted by neurolysis Depending on what you mean by 'intensive video stuff', I'd say go i7. |
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Originally Posted by Cyberbot You're also more futureproof with the i7 as the i9 CPUs are going to be released on the 1366 socket |
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