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two 670s. 3570k or 2700k?
10-01-2012, 03:41 AM, (This post was last modified: 10-01-2012, 04:07 AM by Cheepnis.)
two 670s. 3570k or 2700k?
***I see now that I posted this in the wrong section. If a mod could move this to the "questions" subforum, I'll be over there.***

Hello. I am building my first PC with the idea of eventually getting 2 GTX 670s for an ultimate gaming rig. I have chosen all the important components for my build except for a CPU and Motherboard, which I plan on buying in the next two days from MicroCenter.

I think I will be going with the Gigabyte UD5H or ASUS V-Pro for a mobo, but still haven't made up my mind on a CPU. I am choosing between:

2500k ($170)
3570k ($200)
2700k ($244)

It is my understanding that all three of these CPUs will be more than powerful enough to keep from bottlenecking the dual 670s AT ALL.

I would prefer the Sandy Bridges but I am still not 100% convinced that running two 670s in pcie2.0 x8 lanes will be ABSOLUTELY no different than the dual 670s in pcie3.0 x8 lanes.
I have heard most people say that the even dual 680s or 690s do not even fully utilize the 2.0 slots, but I have also heard a few people say that the 2.0 x8 slots may hamper dual 670s just a bit.

Please clear this up for me so that I can be confident that I'm choosing the perfect CPU for me.
I want to guarantee that I get every last drop of goodness possible out of the two 670s. Will the Sandys do that for me?

Are there any other downsides to not going with Ivy?

* I know the i7s are not needed for gaming.
10-01-2012, 12:46 PM, (This post was last modified: 10-01-2012, 12:46 PM by ichigeki.)
RE: two 670s. 3570k or 2700k?
Basically here's a quick breakdown of sandy bridge vs ivy bridge...

1. Ivy bridge is slightly faster than sandy bridge in general.
2. Ivy bridge produces more heat than sandy bridge.
3. Ivy bridge is more energy efficient despite producing more heat.
4. Ivy bridge can't technically be overclocked as much as sandy bridge, however they end up being similar in performance due to ivy bridge being slightly faster per GHZ.
5. Ivy bridge has faster integrated graphics HD 4000 vs HD 2000/3000

As far as pcie 3.0 vs 2.0, you're not missing out much. 2x 670s will run the same on a pcie3.0 as they do on a pcie2.0.

Desktop: CPU: Intel Core i5 2500 3.30GHz RAM: G.Skill 8GB MOBO: ASRock P67 Extreme4 Gen3 Video Card: SLI MSI Nvidia GeForce GTX 460 768 SSD: Corsair Force 3 60GB HDD: Samsung F3 1TB Sound: Creative Sound Blaster X-Fi Titanium Mouse: Storm Sentinal Z3RO-G Keyboard: Das Keyboard Silent/Filco Majestouch 2 Speakers: Behringer MS-16 Headphones: Alessandro MS-1/Shure SRH440 modded Router: D-Link Xtreme DIR-655 Monitor: Dell Ultrasharp U2312HM De-anti-glared Laptop: Lenovo Thinkpad X120e/Thinkpad T430
10-01-2012, 02:27 PM,
RE: two 670s. 3570k or 2700k?
i always recommend going with the newest technology and with your pricing, 30 bucks for 7-10% performance increase in games and up to 15% increase in total benchmark averages is a pretty good deal.

as for the pcie2.0 vs pcie 3.0, ive seen only one instance where it makes a difference and that was with gtx 680 three way sli, triple monitor surround @ 5760 resolution on an x79 platform. who knows when mainstream will need the bandwidth, but it seems like it took 7 years for games to catch up to pcie 2.0 from pcie 1.0.

good luck

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