Thank you Word Not Allowed. Just to clarify, I have 2700k and i am satisfied with results. But at the begining(about 2 months ago), when i didn't know too much about overclocking, i tried assus auto oveclocking feature which is not good at all, in fact it's really dangerous. Becouse of that, my CPU was exposed to 1.8 vcore! Only for a second, before i hit stop buton on IBT. It runs fine now on 4.9GHz 1.4vcore, but from what i know, i can expect degradation to happen faster than expected, becouse of what happens.

So, i was thinking to buy another 2700k for backup, becouse intel has stoped sandy bridge production, and it will be difficult to buy 2700k after March 2013. But now, i'm not sure if that is a good idea. I've heard a lot of positive things about 3770k, this is why I'm trying to make it clear, to find the truth. I still compare them, and i like 3770k becouse is more efficient at the same clock, delidding is not a problem for me. For now, the only argument against 3770k was something about 22nm vs 32nm. Someone told me that, theoretically, at high voltages 32nm will be much better then 22nm(long term), but i must verify that.

I plan to oc as high as I can.

For now, the only argument against 3770k was something about 22nm vs 32nm. Someone told me that, theoretically, at high voltages 32nm will be much better then 22nm(long term), but i must verify that.

Do you mean degraded,

I heard the opposite but time will tell, the sandy is very sensity to voltage and degrade fast thats true .

Not teoretic 22nm 32nm , but that the IVY is a tuffer CPU than Sandy and shall not degrade with high voltage as fast as the Sandy.

 

 

Because not everyone dare or want to break the warranty this way!!! You talk about delidding like it has become daily procedure for each user buying an IB... :mellow:

 

I agree to all points where IB is better with faster memory, but still, 2700K will probably overcome the 3770K by some 400Mhz in the similar configuration (volts for 4.8 risk on 3770k vs volts for 5.2 risk on 2700k), on both having an ability to get the Intel warranty for $25 or so.

What will these 400Mhz bring really, has been discussed on the other thread. Can the memory and IB higher clock for clock ratio make up for the 2700K's bare speed with fast memory too? Good question...

 

And btw. 2700K is here cheaper than 3770K, by €10.

 

:lol: sometimes I get a bit carried away... Sorry guys!

volts for 4.8 risk on 3770k vs volts for 5.2 risk on 2700k

 

Volt risk??? What volt risk?

 

And Word Not Allowed... for the life of me... I cannot fathom why you would recommend the 2700k over the 3770k when "your guys" own FSXMark11 shows the 3770k superior... the only 2770k's close are oc'd over 5GHz.

 

If one's main diet consists of eating cheese & crackers... I can see where "saving" €10 on a cpu a "good idea"... or maybe put that €10 toward haswell and skip both. I just don't see the point of investing in older technology.

 

I have no doubts the 2700k is a good chip for FSX... but as Hasse has essentially said, there is something better.

 

Before attack me , i have overclocked 2700k:s more than most of you have done.

 

No way attack you Hasse... you have clearly demonstrated your experience with both... again thanks as you reporting your findings helped me to make the decision for IB.

 

The 3770k I am currently using is "untouched" (no de-lid and no-lap on the cpu - just on H100 and using the a/c air ) -- 4.8GHz @ 1.375v (and this just once trying ASUS TurboEVO).

Hi here is my last 2700k FSMark test.

With tons of volts to the mems, stressed the memcontroller max with my 2800mhz 3770 mems

http://forum.avsim.n...75#entry2416365

 

 

Here runs with 3770k non delidded

http://forum.avsim.n...75#entry2417335

 

here delidded, and have a little more experance how to handle the beast

http://forum.avsim.n...75#entry2421072

 

Here with Phase Change low volt no stress on mems a nice 24/7 config

http://forum.avsim.n...e/#entry2495340

 

Hasse

Do you mean degraded,

I heard the opposite but time will tell, the sandy is very sensity to voltage and degrade fast thats true .

Not teoretic 22nm 32nm , but that the IVY is a tuffer CPU than Sandy and shall not degrade with high voltage as fast as the Sandy.

 

Thank you, that is one more argument for ivy bridge

I don't understand one thing...

 

max temps 67c under stress tests but is not stress tested yet? :Thinking:

 

I just carefully watched what is going on, becouse i am still thinking, should i buy one 2700k for backup or 3770k is really better....

 

I did not stress test under Prime95, I used a variety of other benchmark software to stress test the whole system, not just CPU and mem.

 

Yes temps max 67c, although I'll be told I made this up too :-)

The system ran for 3 full days and used a variety of software. The only problem I had was configuring the bios at this clock speed, I think there's an update needed with asrock bios.

 

Volt risk??? What volt risk?

 

And Word Not Allowed... for the life of me... I cannot fathom why you would recommend the 2700k over the 3770k when "your guys" own FSXMark11 shows the 3770k superior... the only 2770k's close are oc'd over 5GHz.

 

If one's main diet consists of eating cheese & crackers... I can see where "saving" €10 on a cpu a "good idea"... or maybe put that €10 toward haswell and skip both. I just don't see the point of investing in older technology.

 

I have no doubts the 2700k is a good chip for FSX... but as Hasse has essentially said, there is something better.

 

High volts, simply put. Whatever it takes to reach the max overclock possible within some specific temperature limit.

 

I do *not* recommend 2770k over 3770k. I only said both have their plus sides.

Let me put it this way: can unlidded 3770k be faster cpu than 2700k when both overclocked to max possible for FSX? Only interested in FSX performance... Also same type of RAM, installation and everything. I have never seen such test. Did I miss something?

 

And not saying 10€ is important. Only you said that 2700k is more expensive, I wanted to say it is not.

 

 

Sent from my iPad using Tapatalk HD

I did not stress test under Prime95, I used a variety of other benchmark software to stress test the whole system, not just CPU and mem.

 

Yes temps max 67c, although I'll be told I made this up too :-)

The system ran for 3 full days and used a variety of software. The only problem I had was configuring the bios at this clock speed, I think there's an update needed with asrock bios.

 

Yes, i though so. If your system is ok for a couple of days and you are satisfied...it's yoor PC

Only friendly advice: I saw somewhere that unstable overclock can degrade your CPU faster thatn high voltages!

I used OCCT once becouse someone said that OCCT stress system in the same way like fsx. But i passed all tests with OCCT, and in fsx i get BSOD. I use the last version of Prime95 since then, with excelent results.

In fact, i use IBT first for orientation, if temps are below 90c - i use custom test with Prime95 2x20min FFT 1344 and 1792(sandy bridge killers)and 85-90% of available memory(1500MB is not used). And than, if everything is ok, i can go for higher clock/vcore or test full stability with default Prime95 blend test for several hours. This works fine for me, i never get BSOD after i find stable overclock using this metod.

 

One more thing, Word Not Allowed - 3770k will require lower vcore then 2700k for the same clock? Or will need lower clock/vcore for same fsx performance?

Also same type of RAM, installation and everything. I have never seen such test. Did I miss something?

 

an unlidded 3770k can outperform a 2700k with same type of mem but not with same mem speed you need 2600mhz cl10 on the 3770 to have

more performance in FSX than a 2700k with 2133 cl8.

if the 3770 make 4.8 on air , the 2700k need 5.15 for same FSX performance.

You cant do the test with same memspeed or the same clock, if lock the clock 3770 shine. and lock the memspeed 2700shine.

Its the same as a car with 4gears and one with 5 and mesure topspeed on the 4rth gear on both.

2700k memcontroller can do 2300mhz and 3770k close to 3000mhz mine 3770 can do 2950mhz

 

 

Yes, i though so. If your system is ok for a couple of days and you are satisfied...it's yoor PC

Only friendly advice: I saw somewhere that unstable overclock can degrade your CPU faster thatn high voltages!

 

This is very true, and for this for same reason I only ran this overclock for a short period, just to get a sense of what kind of performance I would get. My work PC is usually just fine at 4.6-4.8

Only you said that 2700k is more expensive, I wanted to say it is not.

 

No... I understood what you said / meant.

 

And thanks for the clarification on the other.

if the 3770 make 4.8 on air , the 2700k need 5.15 for same FSX performance.

Are there any reasonable evidence that profs this clock to clock advantage of the Ivy Bridge over Sandy?

If so, could you please advise me on some topics or analyzes here on forum.

I know that every new CPU brings clock to clock speed improvement in bench-marking and well utilized application but I would like to believe that is the case in FSX too, although it is an old, bad optimized, 32bit application that doesn't use new hardware and it's full potential. Thanks.

Are there any reasonable evidence that profs this clock to clock advantage of the Ivy Bridge over Sandy?

If so, could you please advise me on some topics or analyzes here on forum.

I know that every new CPU brings clock to clock speed improvement in bench-marking and well utilized application but I would like to believe that is the case in FSX too, although it is an old, bad optimized, 32bit application that doesn't use new hardware and it's full potential. Thanks.

 

Markoni

You can start reading the FSMark11 tread from page 18 to 21 and the FSMark11 spreadsheet.

links from my runs.

http://forum.avsim.net/topic/329116-fsxmark11/page__st__475#entry2417335

http://forum.avsim.net/topic/329116-fsxmark11/page__st__425#entry2391590

 

Hope that it make it clear

 

Cheers Hasse

Markoni

You can start reading the FSMark11 tread from page 18 to 21 and the FSMark11 spreadsheet.

links from my runs.

http://forum.avsim.n...75#entry2417335

http://forum.avsim.n...25#entry2391590

 

Hope that it make it clear

 

Cheers Hasse

Thank you. Is this relation constant in terms of different scenarios. To be more precise, does this mean that I7 3770k FPS advantage is the same regardless I fly default Cessna over default scenery, or flying 737 NGX over ORBX PNW, landing to KSEA?