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i3 vs i7 - Gaming Performance [updated] - Page 9

post #81 of 195
Quote:
Originally Posted by jason4207 View Post
http://www.cpubenchmark.net/

Q8300 2.5GHz 3558
Q8300 3.5GHz 5032

i3 550 3.2GHz 3080
i3 550 4.8GHz 4632
I did my own little test and compared my i7 to a few i3's at the same clock speed .. Im not sure what happened to integer math , might of cut off during the test maybe i need to increase vcore a tad .


Edited by Xristo - 2/18/11 at 2:15pm
    
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post #82 of 195
Nice comparison. I'm a bit surprised that the i7 lost in Bad Company 2, since that game supposedly utilizes up to 4 cores IIRC.
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post #83 of 195
I don't know why everyone is asking for tests with hyperthreading on and increasing the i7 OC to 4.2Ghz. It's already been explained why the i3 is neck and neck with the i7 in many of these and why increasing the i7's OC and enabling HT isn't going to change the results one bit outside of the ones where the i7 already shows a big advantage.


Quote:
Originally Posted by aznofazns View Post
Nice comparison. I'm a bit surprised that the i7 lost in Bad Company 2, since that game supposedly utilizes up to 4 cores IIRC.
It's because of the graphics settings, had this been done with lower settings or with an sli/xfire setup the additional threads would have destroyed the i3. The same could be said about just cause 2.
Edited by scyy - 2/18/11 at 2:49pm
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post #84 of 195
Quote:
Originally Posted by Xristo View Post
I did my own little test and compared my i7 to a few i3's at the same clock speed .. Im not sure what happened to integer math , might of cut off during the test maybe i need to increase vcore a tad .

I went ahead and tested my i5-2500k, and I must say your results are less than what I would have expected.

Since most games don't use HT, I'll assume your actual results IG would be even lower.




10,000 with no HT, man...
    
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post #85 of 195
yeah i think i needed to add more vcore , it was under performing ..
    
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post #86 of 195
Does the average i7 overclocker actually turn off Hyperthreading for gaming?

My guess is ... almost all i7 owners leave HT on. Therefore, let's leave HT on in the benchmarks too. Or turn off HT and call it an i5
     
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post #87 of 195
Quote:
Originally Posted by Xristo View Post
I did my own little test and compared my i7 to a few i3's at the same clock speed .. Im not sure what happened to integer math , might of cut off during the test maybe i need to increase vcore a tad .
So, are you at 3.2GHz? It just doesn't seem like you'd need to increase vcore at 3.2GHz.

Quote:
Originally Posted by BallaTheFeared View Post
I went ahead and tested my i5-2500k, and I must say your results are less than what I would have expected.

Since most games don't use HT, I'll assume your actual results IG would be even lower.


10,000 with no HT, man...
And what speed are you at?

Just wanted to make sure you guys are comparing at the same speed as your sig is much different.


At any rate tests like that show the potential that multiple cores brings, but for gaming the CPU isn't utilized like that. That was my point above; that pure CPU benchmarks don't reveal real-world gaming performance metrics.

The i7 is a work horse that can crunch through anything. And for gaming the i3 is pretty much just as good.

i7 is considerably more expensive; not only when purchased, but in cost of ownership over time. Someone on a budget can get an i3 rig, and spend more on the gfx card for a better bang4$ gaming experience.


Quote:
Originally Posted by appleg33k85
That IS the point of a comparison, your comparing two chips, its not fair to compare them on unequal grounds, otherwise why go through all the trouble to make everything the same? Why not use a 570 with one and a 430 with the other? A clock for clock comparison is the only way to truly compare chips, just like if you had a 4ghz i7 vs a 3ghz AMD Phenom II, c'mon lets be logical about this, its the reason that every review site has a computer that doesn't deviate, these are constants, it would skew the results in later benches
I see your point, and it is very valid, but I think you're missing mine. There are other types of comparisons that are legitimate that don't involve clock-for-clock comparisons. Take stock performance for example; different clock speeds, fair comparison. I believe the same to be true for a max-avg-potential-OC comparison.

If I wanted to compare the PhenomII and the i7 in this way I would look at avg OCs on good air for each across the forums, and use those numbers in the comparison.

Also consider that even at the same clock speed 1 i7 core and 1 i3 core are not equal. Different amounts of cache, 32nm vs 45nm, on-board PCIe vs X58 PCIe, clarkdale vs nehelem; the architectures are similar but not identical. So they're technically not on fair ground at the same clock speed.

Look at another closer example like Q6600 vs Q9550 where both have 4 cores. These chips are pretty similar in a lot of ways. The Q9550 will beat the Q6600 at the same clock speed, but from an OCers perspective the performance difference b/n the Q6600 at 3.6GHz vs the Q9550 at 4GHz is much broader, and so the Q9550 has more value to an OCer who will get either chip to about those speeds.

And remember the Athlons that were "4000+", and that was supposed to represent the comparable performance to the P4s clock speed at the time (4000+ ~=~ 4GHz)?

If you don't see my point it's all good!

I'll agree to disagree and call it a day.

post #88 of 195
Thread Starter 
Bump - Due to a number of request (and in the interest of fairness), I've now added the results for the i7 running at 4.2Ghz. Please keep in mind HyperThreading was off and i will not get results with it enabled because it doesn't make much of a difference, if any, and that's an end of it. Please keep it clean, this is meant to be an informative thread for those who would find this useful. Thanks.
Edited by Razi3l - 2/19/11 at 7:15am
    
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post #89 of 195
Quote:
Originally Posted by jason4207 View Post
So, are you at 3.2GHz? It just doesn't seem like you'd need to increase vcore at 3.2GHz.



And what speed are you at?

Just wanted to make sure you guys are comparing at the same speed as your sig is much different.


At any rate tests like that show the potential that multiple cores brings, but for gaming the CPU isn't utilized like that. That was my point above; that pure CPU benchmarks don't reveal real-world gaming performance metrics.

The i7 is a work horse that can crunch through anything. And for gaming the i3 is pretty much just as good.

i7 is considerably more expensive; not only when purchased, but in cost of ownership over time. Someone on a budget can get an i3 rig, and spend more on the gfx card for a better bang4$ gaming experience.




I see your point, and it is very valid, but I think you're missing mine. There are other types of comparisons that are legitimate that don't involve clock-for-clock comparisons. Take stock performance for example; different clock speeds, fair comparison. I believe the same to be true for a max-avg-potential-OC comparison.

If I wanted to compare the PhenomII and the i7 in this way I would look at avg OCs on good air for each across the forums, and use those numbers in the comparison.

Also consider that even at the same clock speed 1 i7 core and 1 i3 core are not equal. Different amounts of cache, 32nm vs 45nm, on-board PCIe vs X58 PCIe, clarkdale vs nehelem; the architectures are similar but not identical. So they're technically not on fair ground at the same clock speed.

Look at another closer example like Q6600 vs Q9550 where both have 4 cores. These chips are pretty similar in a lot of ways. The Q9550 will beat the Q6600 at the same clock speed, but from an OCers perspective the performance difference b/n the Q6600 at 3.6GHz vs the Q9550 at 4GHz is much broader, and so the Q9550 has more value to an OCer who will get either chip to about those speeds.

And remember the Athlons that were "4000+", and that was supposed to represent the comparable performance to the P4s clock speed at the time (4000+ ~=~ 4GHz)?

If you don't see my point it's all good!

I'll agree to disagree and call it a day.

i get ur point...so no offence i dont mind 13 perf. same as i7 coz i took i7 for multi purpose not just for gaming......
but i would like to request the op if he could test an i7 8xx with i3 coz they r more similar than i7 9xx and i3.....
i would really like to see the difference between i3,i7 8xx and i7 9xx......
so please if u could do this comparison it would be great....
post #90 of 195
Thread Starter 
^If I can get my hands on an 8xx series i7 i'll do that, though the performance isn't very different and in most cases the 8xx outperform the 920 because their stock clocks are higher. At the same clocks they perform about the same it seems. The only main difference is dual and tripple channel memory and that doesn't make too much of a difference.
    
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