switching from i5 750 to i5 2500K

[phinix]

I'm about to swithc from i5 750 2.66GHz stock speeds to i5 2500K 3,3GHz and OC to above 4Ghz.

Will I notice a difference in gaming, framerate wise? Having same gpu (GTX580)?

[andy572]

I'm currently looking at low-end Intel chips and keep finding Intel versus AMD comparisons that would be relevant here.

Firstly, it depends on the game - some just aren't limited by the available processing power. Where there is a difference, people describe the improvement being in the average frame rate - that the minimum doesn't fall so low (or perhaps for so long).

The 750 still looks like a capable chip and other than the above differences and exceptions with some titles, I wonder if games are really the best way to highlight any performance gap? If a game plays smoothly anyway, some of the figures reported and given in benchmarks would be meaningless in practice (at least to me).

Stock clock 750 vs. 2500K comparison #1

Comparison #2

Comparison #3 - game section of a review from some place called... Hexus?

If you're in need of a quick answer, searching with something like 'i5 750 v overclock 2500k' will return many results and a lot of information.

[Willzzz]

Would it not make more sense to get the 3570k? You should have little difficulty hitting 4ghz+. While you can probably hit higher clockspeeds with sandy this is getting into the territory where it won't help your framerates. In many games you will find that the IPC improvements in Ivy are actually more important than raw clockspeed. Also you may find that PCIe 3.0 and other features become important in the future.

[dokdek]

You wont notice a massive difference in framerates. CPU's arent as critical to gaming as a GPU's are, you'll notice maybe 5 or 10 frames better in games, well it all depends on the game as well, if a game is more CPU bound than GPU bound, well yes, you will notice a higher FPS increase. Also as Willzzz pointed out, why not upgrade to a 3570k? The 2500k is already a generation old, and with the new ivy bridge architecture, you get some benefits, such as PCIE 3.0 which will help out with graphics cards in the future.

[phinix]

I'm currently looking at low-end Intel chips and keep finding Intel versus AMD comparisons that would be relevant here.

Firstly, it depends on the game - some just aren't limited by the available processing power. Where there is a difference, people describe the improvement being in the average frame rate - that the minimum doesn't fall so low (or perhaps for so long).

The 750 still looks like a capable chip and other than the above differences and exceptions with some titles, I wonder if games are really the best way to highlight any performance gap? If a game plays smoothly anyway, some of the figures reported and given in benchmarks would be meaningless in practice (at least to me).

Stock clock 750 vs. 2500K comparison #1

Comparison #2

Comparison #3 - game section of a review from some place called... Hexus?

If you're in need of a quick answer, searching with something like 'i5 750 v overclock 2500k' will return many results and a lot of information.

Thanks for reply.

Looks like it is a bit of jump up anyway.
I understand it depends on games, will have to test it and see myself.
Apart of that, software looks like will have advantage over new cpu.

[phinix]

Thing is I'm getting (just got) used 2500K and new mobo with it, that is why I'm not getting new cpu - 3570K.
I only added £50 for upgrade from P55+i5 750 to Z68+2500K.
There are more gains than just a speed.
I got SATA 3, USB 3 and better OC abilities with new chip.
If I had money, I would go straight for Ivy bridge - as you said, that would give me even more advantages and more future proof. But for now, i2500K will do

[phinix]

Cheers for joining in. AS I mentioned above, it was cheaper for me to get used 2500K.
About those PCIE 3.0 - I don't think we will see any improvement over 2.0 that much, not at least in next few years.
I remember jump from 1.0 to 2.0 - it didn't give a lot of improvement. Well, IIRC more juice could be sucked from new version.

[davesom555]

It's not worth the upgrade from a I5 750 to a 2500k. I have an I5-760 - theres not much performance benefit. Unless you are upgrading to get benefit from other features, Sata 3, PCIE 3 etc.

See this article:-
http://www.tomshardware.com/reviews/...ck,3106-5.html

[J0s3e]

It all depends on what games you are going to be playing really. I am going to upgrade mine very soon, going to get 3570K. Only because I really enjoy playing BF3, and need to squeeze every possible FPS out of my system. I am currently running mine at 165x21 for 3465MHz, getting in average 95fps with my settings. I am hoping for 110fps, ideally 120 with new CPU. Also, if you are going to get an SSD, you will benefit from SATA3. Hope that helps. If you don't mind me asking - why did you not OC your 750??