fastest CPU you can buy for socket 775 motherboard?

david151

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Oct 17, 2016
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What is the fastest / best CPU you can buy for a socket 775 motherboard? I have a Gigabyte EP45-UD3R socket 775 motherboard and was thinking buying an intel xeon x5470. This is a 4 core cpu, with 12M Cache and is clocked at 3.33 GHz. I should be able to get a stable 4ghz overclock. I know I will need to mod the motherboard slightly and the chip, but that is easy to do. Plus being a server cpu, I heard the build quality is slightly better.

Do you think this is the best choice or were there better / quicker chips available (faster or with more cores).
 

Justinbaileyman

Golden Member
Aug 17, 2013
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The Qx9650 is the fastest cpu your gonna find for that socket. its only clocked at 3.0Ghz but the multi is unlocked hence the X in the name meaning extreme. You can easily do 4.5Ghz all the way up to 5.2Ghz if your cooling is good enough.I had the plain Jane Q9650 and it did 4.5Ghz just by doing the Conductive Silver pen trick to change the FSB. Very Very fast and strong CPU and still keeps up with todays standards pretty well.If you want more cores the next step up is a six core cpu like say the x5650 on the LGA 1366 platform called x58.
 

david151

Member
Oct 17, 2016
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The Qx9650 is the fastest cpu your gonna find for that socket

Why do you rate that better than the intel xeon x5470? The intel xeon x5470 has a higher base clock speed and I have seen them overclock pretty high. People also say being a server cpu, the build quality is higher. Would a intel xeon x5470 really be a bad choice if overclocked? You you really see much difference between the intel xeon x5470 and the QX9650?

Another consideration is the price. The Qx9650 seem to fetch crazy prices compared to the x5470 - is it really worth paying more for something with negligible speed improvements?

If you want more cores the next step up is a six core cpu like say the x5650 on the LGA 1366 platform called x58.

Is 6 cores the maximum, were there never any 8 core options for a socket 775?
 

Justinbaileyman

Golden Member
Aug 17, 2013
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there is no 6 core for 775 motherboards only 4 core. If you want to go 6 or more cores you need to get into the extreme platform motherboards like x58 or x79 or x99.
 

Torn Mind

Lifer
Nov 25, 2012
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The Xeon is a Socket 771 chip. You will need to do a little modding to make it work, but it CAN be done.

http://www.delidded.com/lga-771-to-775-adapter/

CPUs are doped and basically the chemicals work themselves out, although not exactly all the same. It is just the silicon lottery and feature sets. They ALL can run at stock settings. That's what Intel verified at their factory. It's when out of spec is where things can deviate and the differences in the chemistry stew manifest themselves.
 

VirtualLarry

No Lifer
Aug 25, 2001
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there is no 6 core for 775 motherboards only 4 core.

For 775, that's true, but the server socket did get a late addition of a six-core CPU. I forget the code-name, but I think it started with "D". Does anyone remember this one? It would be really neat to get a hold of one, and try to use the 771 mod to get it working in a 775 overclocking board.

https://en.wikipedia.org/wiki/List_of_Intel_Xeon_microprocessors#.22Dunnington.22_.2845_nm.29

"Dunnington"

Edit: Wikipedia says "Socket 604".
 
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