Question Intel i7 4930k vs Xeon E5-2697 v2

aerocool

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Greetings.

I've searched a lot in Google, but I have not found any specific information.

Currently I have an i7 4930k @ 4.375GHz (BCLK to 125)(CPU Strap 125) (5 years old)
Fixed voltage at 1.33v. No problem at this time.

Now I was thinking about installing a Xeon E5-2697 v2 because it seems to be compatible with my Asus p9X79pro motherboard.

I work with 3DS, vray, unreal ... and some gaming (Oblivion, Skyrim, Fallout 3/4, Witcher 3…).

The questions I have for this wise community:

1 Does the Xeon E5-2697 v2 support BCLK at 125 (CPU Strap 125)?
2 What voltage could it need to get 4.375GHz? (I know this is a lottery).
3 Can each core work at the same performance as my 4930K with OC?
4 Is it worth to pay € 350 for this used CPU?

My idea is to have more total power, but at least maintain the same power per core (so that 1-core applications do not go slower than with the 4930k)

My calculations:
The 4930k with BCLK 125 (CPU Strap 125) (for 5 years and still works perfectly) fixed 1.33vcore
- Normal 125x34 = 4250 MHz
- Turbo 125x35 = 4375 MHz (can put more multiplier, but don´t wat to put more vcore)

Xeon E5-2697 v2 with BCLK 100 (stock)
- Normal 100x27 = 2700 MHz
- Turbo 100x35 = 3500 MHz
If it admitted BCLK to 125 and CPU Strap 125 (vcore?)
- Normal 125x27 = 3375 MHz
- Turbo 125x35 = 4375 MHz

I know I can not touch the multiplier, if it only admitted BCLK to 125 (CPU Strap 125) I would have more total power although the same per core.

Thank you!
 
I've ran 2 Xeons as my home build, both were ES/QS samples, so bear that in mind when considering my input. They ran rock solid, but the minute I changed a setting the slightest = catastrophic failure. No boot, several CLR CMOS attempts and a full power disconnect for a few minutes before I could get it running again. I've done this quite a lot and never ran into a CPU that could work so solidly at stock and yet not bulge at all. I've tried base clock change, multiplier change, with or without a voltage increase, changing specific ratios (turbo), disabling turbo, disabling specific C-states, changing memory frequency and every one of these fails.

If you can read some frustration in my comment, you read correctly.

So based on that I would strongly suggest you avoid a Xeon if you are counting on it operating out of spec.
 
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aerocool

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Thanks for the answers to both of you. :D

RobCrezz
At the moment I can not afford such a large expense 💸 (CPU + Motherboard + 64GB RAM + Cooler), so I thought about this Xeon because the compatibility with my Asus p9X79 pro. If I can not do OC to the Xeon, I'll stay with the 4930k.:(

Murissokah
Yes I see how frustrated you are, I'm sorry :( (they are too expensive and we can´t do full OC :mad:).
Still, allow me to ask you, what motherboard do you use? And is there no possibility that the Xeon works with BCLK 125 and CPU Strap 125? I say it to avoid the problem with the HDD, GPU, RAM... (My 4930k+p9X79pro works fine with BCLK to 125 and components are not affected).

(If it is really difficult to OC, I will avoid Xeons)