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  1. #1
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    Xeon X5675 vs i7 980X?

    I never thought the day would come that I would need to upgrade. That day is today.

    Looking for the coolest/ best overclocker. I want 4.5Ghz out of this next chip.

    What's the best choice?

    Thanks

  2. #2
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    Re: Xeon X5675 vs i7 980X?

    I don't think boards that support a Xeon support overclocking.


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  3. #3
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    Re: Xeon X5675 vs i7 980X?

    Quote Originally Posted by chris89 View Post
    I never thought the day would come that I would need to upgrade. That day is today.

    Looking for the coolest/ best overclocker. I want 4.5Ghz out of this next chip.

    What's the best choice?

    Thanks
    Are you limiting yourself to those two particular chips? If you're dead set on sticking with LGA1366 (vs going to 1155 or 1150 and reaping some pretty significant architecture improvements), then I think it might be a toss-up between those two options. Your other potential option would be the X5690, which is faster than the 980X (3.46 vs 3.30) and has the same 130W TDP, while the 5675 is a 95W TDP. I'm not sure which chips would be considered the "better" bin, the lower power or the high clock speed. 4.5Ghz sounds pretty ambitious based on my experience with westmere-EP, but I never had a multi-unlocked one (a i7-970 and 2x L5640's in an SR-2).


    Quote Originally Posted by TheGlasMan View Post
    I don't think boards that support a Xeon support overclocking.
    You can put a LGA1366 xeon in any board with the same socket, including ones with the X58 chipset. They might not support all the features, but they absolutely work and overclock as well. The X56xx Xeons are actually multiplier unlocked as well, just like the Extreme Edition CPU's were.
    Last edited by Activate: AMD; 07-03-2014 at 12:08 AM.


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  4. #4
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    Re: Xeon X5675 vs i7 980X?

    OMG Really?!??! Multiplier unlocked!?!? Wow

    How can I give u rep points bro?

    That's exactly what I wanted. I saw 3.07Ghz to start on 6 cores and 12 threads. The 95W tdp will help, since I do 4.2ghz without issue on my 130w i7 930. Which was overclocked from 2.8ghz to 4.2ghz that's 1.4ghz.

    I'm super interested in a bit of a heat reduction, and multiplier unlocked will allow the QPI to cool down a bit, since I had to boost up the QPI on the i7 930. Which I feel helps a hell of a lot from 6400mhz QPI, to 7209 and 3609. I think stock is 3200-6400 qpi.

    I had the X5675 in mind since it's not a bad price only $250, and if I could pull 1.4Ghz overclock it would pull 4.47ghz realistically.

    Thanks man! I appreciate the advice bro! You sure know a lot about these 1366 Xeon's. I like 1366 since I can maintain my Triple Channel ram and 30GB/s memory bandwidth.

    -------------------------------------------------------------------------------

    On another Xeon note. Do you know what the procedure is to pull a LGA 771 Xeon from 333Mhz fsb to 400Mhz fsb?

    I hear it's possible on the LGA771. I have Two X5450 3Ghz quads I'm building a gaming rig with. I wanna compare to the i7 a bit on the LGA771 system. It has 64GB ram support of Quad-Channel DDR2-667, and 2 X5450's with 24MB of CPU cache total.

    I was thinking about going with the X5470, since it's 3.33ghz with 333mhz fsb. If I mod it to 400Mhz fsb, that's 2 4Ghz Quad's X5470's.

    Thanks
    Last edited by chris89; 07-03-2014 at 12:02 AM.

  5. #5
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    Re: Xeon X5675 vs i7 980X?

    Ok, don't quote me on the multiplier unlocked part for the xeons, thats strictly from memory. I'll do a little more research, I shouldnt have been so hasty

    EDIT: looks like I was wrong, the X5690 has a top multi of 26. In that case the 980X will be easier to overclock with as you'll be able to play with the multi instead of strictly bclk OC'ing. The X5675 has a multi of 23 which means you'll be pushing it to the limit to get to 4.5 (bclk of 195, usually 200 is around where everything kind of topped out on those 1366 chips like your 930). That said, at $250 its a bargain compared to the 980 or X5690, which are still in the $500+ range
    Last edited by Activate: AMD; 07-03-2014 at 12:12 AM.


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