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i7 or i5.. I can't decide!

1868 Views 31 Replies 14 Participants Last post by  candy_van
Gone back and forth a few times now. Already ordered the PSU for the new build. (Corsair 750)

i5 - $150
i7 - $200

Can get an i5 board (Gigabyte) for ~$100 or so. An x58 board of comparable quality is almost 2x. 4GB DDR3 = $100 vs 6GB DDR3 = $140+.

So all in all, i7 would cost me about $200 more.

So, it's basically i5 + 5970 or i7 + 5870.

Any thoughts? Purely for gaming (in terms of what I need the power for) and I am planning on going 3x screens later on as an upgrade. (Either 3x1680x1050 or 3x1920x1200)

Any thoughts? Need to decide for sure by Friday, for obvious reasons.
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Purely gaming --> i5 + 5970

Graphics card is more important for games than CPU.
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Purely for gaming, i5 is a great choice. It's the one I made.

The only time x58/i7 is justified IMO is if you are planning on a multiple high-end GPU setup.

I also like 1156's onboard PCI-E controller for super low latency. From what I've heard/seen, it makes up for the extra mem bandwidth on x58 so it is a wash as far as perf. goes.
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I would have to say i5 if you are strictly gaming. i7 is more of an enthusiast chip for extreme overclocks.
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i7 as a platform is just much better. I would spring for the i7, you'll get better performance overall.
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As far as a gaming rig goes get the i5 with the 5970 OC the i5 to 4Ghz and blammo Awesome rig of Doom!
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Quote:


Originally Posted by Mygaffer
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i7 as a platform is just much better. I would spring for the i7, you'll get better performance overall.

But he is asking for gaming.

I think I would agree with the i5 and the 5970.
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i5 and 5970, without a doubt. You'll max out every game on the market.
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He may be asking for gaming, but I still think the Bloomfield is better. GPU bandwidth is greater and even if he is primarily gaming its nice to have the extra power and extra bandwidth for the future.

I wouldn't go for lynnfield for my main rig, personally.
Quote:

Originally Posted by Mygaffer View Post
He may be asking for gaming, but I still think the Bloomfield is better. GPU bandwidth is greater and even if he is primarily gaming its nice to have the extra power and extra bandwidth for the future.

I wouldn't go for lynnfield for my main rig, personally.
for multiple card crossfire/sli* add that in
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The i5 and 5850 is a very nice combo. I game with the XFX 5850 and love it.

More then a enough for my rig and me.
Quote:


Originally Posted by Mygaffer
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He may be asking for gaming, but I still think the Bloomfield is better. GPU bandwidth is greater and even if he is primarily gaming its nice to have the extra power and extra bandwidth for the future.

I wouldn't go for lynnfield for my main rig, personally.

If you run single card, use your rig primarily for gaming, and plan on upgrading your entire rig within the next two years, there is no point spending the extra on Bloomfield IMO.

People say that 1156 is a dead end, but it doesn't matter to me because usually a CPU upgrade means an entire platform upgrade as a matter of habit.

Also, 1156 power management is far superior to 1366 (not important to everyone, but important to me).

A good portion of 1366 platform owners use single card only, bought the platform because it was the "best", and probably hurt themselves in the GPU department because of that. Another $200 saved by going 1156 towards GPU budget can go a long ways. It's the difference between 5870 and 5970.
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Quote:


Originally Posted by iandh
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If you run single card, use your rig primarily for gaming, and plan on upgrading your entire rig within the next two years, there is no point spending the extra on Bloomfield IMO.

People say that 1156 is a dead end, but it doesn't matter to me because usually a CPU upgrade means an entire platform upgrade as a matter of habit.

Also, 1156 power management is far superior to 1366 (not important to everyone, but important to me).

Yeah, this pretty much the conclusion I've come to.

GPUs I may upgrade, but when I do a CPU, it's generally an entirely new platform - meaning motherboard as well.

So, I'm going with i5/5970. (i5/8800 Ultra until I sell my laptop to offset the 5970...) Already have the TX750.

My only issue now is the motherboard. I was going for the Gigabyte P55-UD2, then I read something about bad PCI-e controllers on the earliest P55 chipsets... and so I gotta think about which one.
Bad thing is the P55-UD2 is only $100...
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Quote:


Originally Posted by G|F.E.A.D|Killa
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if its just games do 775 and a 5970

Not worth it anymore IMO (IF a full build is required).

An i5 is cheaper than 45nm C2Qs, P55s are cheap, and DDR3 prices have leveled out with (rising) DDR2 prices...
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Quote:


Originally Posted by G|F.E.A.D|Killa
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if its just games do 775 and a 5970

Thought about it. But I want a quad core. The only ones I'll consider at this point really are the Q9550/Q9650 - both of these are more expensive than the i5 750 (I have a Microcenter here...).

So, why would I bother? A decent 775 mobo is going to run me the same as a decent P55. The only cost difference will be the RAM, which is less than the difference between the i5 750 and the Q9x50s.
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775 lack of IMC causes stuttering in some titles.
Quote:


Originally Posted by G|F.E.A.D|Killa
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if its just games do 775 and a 5970

Why, he can get a i5 which is much faster. Especially with it's onboard PCI-E controller.

you basically said "oh hey, yes, I'll get that compact that's 1000 dollars cheaper than that sedan I've always dreamed of, it's the new 2010 model but I don't want to spend 1000 more because the compact is not what I want and it's worse than the sedan, but it's cheaper!! ! ! ! ! ! !"
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My friend is satisfied with his i5 for gaming. Most games barely use 4 cores. In FSX, 1st two cores are used heavily, 3rd core is use moderately, and the 4th core is barely used at all. He is using GTX 260 SLI, not the most optimal for lga 1156, and is still getting good performance.

For gaming, i5 + 5970 is better value. i7 lga 1366 is better if you use workstation type apps, not just games. I got 1366 for work, but also because I am going to tri-fire (5970 + 5870) down the road.
the i5s are cheaper doesnt mean the i7s are better for gaming, i7 wins for gaming IMO
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