3930k vs 4930k - Difference?

[Adam_101]

Hey Guys/Girls,

Got a quick question. Those of you who had the 3930k and jumped to 4930k, did you notice and difference?

I read about the 5% difference but is there any point going the 4930k over the 39? I heard the 39 Overclocks better too, so just wanted advice from one or the other really?

Thanks Guys/Girls!

Sorry if this was asked already, couldn't find any other posts similar to this .

 

[Boomstick777]

If you're starting a new build, there is no point buying the older 3930K, unless you have a great deal that is. If you're buying new. better to go with the latest, 4930K has lower power consumption, better memory support and higher ipc.

You could also consider the 4770K, similar performance, much lower power use, better for gaming. Much cheaper as well.

 

[Adam_101]

If you're starting a new build, there is no point buying the older 3930K, unless you have a great deal that is. If you're buying new. better to go with the latest, 4930K has lower power consumption, better memory support and higher ipc.

You could also consider the 4770K, similar performance, much lower power use, better for gaming. Much cheaper as well.

Thanks Boomstick! Currently have the 3820 in my system. So was just thinking type thing, if its better. I think the 3930k retails roughlyyyy £30-£40 less then the 4930k..

My reading has lead me to believe the 3930k overclocks bettersthen the 4930k and this makes up for the 5%/10% difference. Also, was thinking if/when Haswell-E comes out will probably go with that in 2015 I believe?...so Just thinking what to do...

 

[alex_123_fra]

As above, most folks who have good clocking 3930k chips won't bother with the jump. If coming from a 3820 and you really need 6 cores, go for the 4930k unless you get a significantly cheaper 3930k. The 4930k has dropped in price quite a bit recently. I imagine this and its "x" big brother aren't selling that well.

 

[Adam_101]

As above, most folks who have good clocking 3930k chips won't bother with the jump. If coming from a 3820 and you really need 6 cores, go for the 4930k unless you get a significantly cheaper 3930k. The 4930k has dropped in price quite a bit recently. I imagine this and its "x" big brother aren't selling that well.

Thanks Alex! Cool makes perfect sense! . I wonder if anyone here tried overclocking the 4930k/other 49 range and how easy it was compared to the 3930 etc range.

 

[alex_123_fra]

Yes SimonMaltby did and he got some excellent results on his 4930k:

http://forums.overclockers.co.uk/showthread.php?t=18541106

Reading around the net though most folks are struggling with clocks much beyond 4.6Ghz and to get there seems to require a lot more voltage than we needed with 3930k chips. May be early days yet though as there is a bit of a learning curve with new CPUs. Memory controller is a bit better on Ivy-E (although my own SB-E chip seems ok too).

 

[SimonMaltby]

With overclocking its very much a lottery.
Both SB-e and IVY-e have much the same ability to overclock.

I would suggest that if you have a 3820 and can overclock it well then I would not change unless you need / want the extra cores. If you do want Hex core then either buy a proven 3930K second hand or a new 4930K. You would be taking a chance on either the 3930K or 4930K regards overclocking.

If your 3820 does not clock well or you are struggling to overclock it because of the number of unlocked ratios (i.e. you cant get 125MHz strap to work well) and you only need / want Quad core then give the 4820 a go.

 

[Adam_101]

Yes SimonMaltby did and he got some excellent results on his 4930k:

http://forums.overclockers.co.uk/showthread.php?t=18541106

Reading around the net though most folks are struggling with clocks much beyond 4.6Ghz and to get there seems to require a lot more voltage than we needed with 3930k chips. May be early days yet though as there is a bit of a learning curve with new CPUs. Memory controller is a bit better on Ivy-E (although my own SB-E chip seems ok too).

I had just this second read that same thing about it being OK upto 4.5 then over requiring a lot more volts. etc...

With overclocking its very much a lottery.
Both SB-e and IVY-e have much the same ability to overclock.

I would suggest that if you have a 3820 and can overclock it well then I would not change unless you need / want the extra cores. If you do want Hex core then either buy a proven 3930K second hand or a new 4930K. You would be taking a chance on either the 3930K or 4930K regards overclocking.

If your 3820 does not clock well or you are struggling to overclock it because of the number of unlocked ratios (i.e. you cant get 125MHz strap to work well) and you only need / want Quad core then give the 4820 a go.

To be honest I dont need the extra cores just yet, but I think your point about getting a proven 3930k possibly may be a good idea. My 3820 does Overclock well so I think thats good, was just thinking with the 3930k and 4930k, but all makes sense though. Absolutely right, either would be a chance on overclocking. .

Thank you guys for the information it all helps!

 

[Amidar]

I was in the same boat as yourself having a 3820 and looking for a 3930K/4930K. I purchased a 4930K in the end and lucky for me it was the same batch number as simonmaltby's 4930K and overclocks the same as his.

 

[Adam_101]

I was in the same boat as yourself having a 3820 and looking for a 3930K/4930K. I purchased a 4930K in the end and lucky for me it was the same batch number as simonmaltby's 4930K and overclocks the same as his.

oo that was lucky lol . Well done though!! Yes it is tricky as I plan on getting the haswell e if/when its released in 2015 I think, so on top of that, trying to weigh up whether its worth it or if my 3820 will hold until then.

 

[86JR]

I take it there is still no point in upgrading my CPU at my overclock to the 4000 series with the exception of hyperthreading which I don't need?

Come on Intel produce something better!

 

[alex_123_fra]

I take it there is still no point in upgrading my CPU at my overclock to the 4000 series with the exception of hyperthreading which I don't need?

Come on Intel produce something better!

In short, unless you need more cores, no.

 

[Gripen90]

I'm also considering if I should buy a Core i7 4930K or not... I'll probably get one by the end of october or november.

I already have the 16GB G.Skill Ares 1866MHz CL9 1.5v purchased for the 4930K.
And I also have purchased a used but perfect condition and complete MSI X79A-GD45 Plus for £45 that will be ready to take over the Core i7 3930K and 16GB Crucial BallistiX Tactical 1600Mhz ram. My fiancee will then get this to replace her AMD Phenom II X6 1090T, Asus M4N82 Deluxe, 8GB Crucial BallistiX PC6400 DDR2 ram...her GTX 660 might be replaced with at AMD Radeon R9-270 later.

 

[Adam_101]

I'm also considering if I should buy a Core i7 4930K or not... I'll probably get one by the end of october or november.

I already have the 16GB G.Skill Ares 1866MHz CL9 1.5v purchased for the 4930K.
And I also have purchased a used but perfect condition and complete MSI X79A-GD45 Plus for £45 that will be ready to take over the Core i7 3930K and 16GB Crucial BallistiX Tactical 1600Mhz ram. My fiancee will then get this to replace her AMD Phenom II X6 1090T, Asus M4N82 Deluxe, 8GB Crucial BallistiX PC6400 DDR2 ram...her GTX 660 might be replaced with at AMD Radeon R9-270 later.

If your on the 3930k judging by whats above and the great help of these guys - there is little improvement from making that jump from the 3930k to 4930k.

 

[wam7]

If you have already got a good clocking 3820 then there is no reason to change, unless you are definitely going to be using applications that are fully multithreaded and will take full advantage of the extra cores.

 

[Gripen90]

If your on the 3930k judging by whats above and the great help of these guys - there is little improvement from making that jump from the 3930k to 4930k.

You're right about that. It's just I have the memory and I have the spare X79 board - I just need a CPU so my fiancee can get an upgrade. So the question is should I buy a new 4930K and give her the 3930K or should I find a used 3930K or 3820.

 

[Adam_101]

If you have already got a good clocking 3820 then there is no reason to change, unless you are definitely going to be using applications that are fully multithreaded and will take full advantage of the extra cores.

You're right about that. It's just I have the memory and I have the spare X79 board - I just need a CPU so my fiancee can get an upgrade. So the question is should I buy a new 4930K and give her the 3930K or should I find a used 3930K or 3820.

Thats what I think I've come to. As Although I do 3d work and rendering etc, my 3820 seems to be very good with it. If it get to a point where it begins to slow in these areas I'll mook for a cheaper 3930k i think or if 4930k are good price at that point I shall look for one of these until Haswell e comes out next year/2015. . In games it is perfect no complaints on that front.

It is very interesting because I did think the difference would be more then like 5%ish (between the two) however being realistic enough not to expect a 50% increase but at least more then then 5%.But then again, the 3820/3930k-as I've seen from Friends builds when overclocked does enough for me.

 

[wam7]

Thats what I think I've come to. As Although I do 3d work and rendering etc, my 3820 seems to be very good with it. If it get to a point where it begins to slow in these areas I'll mook for a cheaper 3930k i think or if 4930k are good price at that point I shall look for one of these until Haswell e comes out next year/2015. . In games it is perfect no complaints on that front.

It is very interesting because I did think the difference would be more then like 5%ish (between the two) however being realistic enough not to expect a 50% increase but at least more then then 5%.But then again, the 3820/3930k-as I've seen from Friends builds when overclocked does enough for me.

I agree with your conclusion. Just for you information I went from a 2600k @ 5Ghz to my current system and for multithreaded apps that maxed out first all 4 cores on 2600k and then 6 cores on the 3930k I saw ~30% increase but for everything else, as you would expect, there was very little difference.

 

[Adam_101]

I agree with your conclusion. Just for you information I went from a 2600k @ 5Ghz to my current system and for multithreaded apps that maxed out first all 4 cores on 2600k and then 6 cores on the 3930k I saw ~30% increase but for everything else, as you would expect, there was very little difference.

Absolutely right!