3570k @4.7Ghz vs 3770k @4.4Ghz What would you use?

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po2p

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Jun 5, 2013
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10,510
Hello peoples,

I want to ask a question for my best mate as he is to lazy to sign up and post this himself.

So this is the situation. He had a PC with an i5 3570k overclocked @4.7Ghz with a custom loop that was just for gaming and the usual web surfing e.t.c., but now he's started using it for transcoding/recoding HD movies for family and friends, at LOT of movies.
So recently he went out and bought a i7 3770k thinking that it would overclock just as good and with the hyperthreading it would increase his PC performance when transcoding and reduce the times for transcoding.
Unfortunately the 3770k seems to be a pretty bad overclocker, I've tried for him but it won't go any more, it can only reach 4.4Ghz with a voltage of over 1.38v. Whereas his 3570k overclocks to 4.7Ghz at only 1.3v. Temps are under 80c on both chips after a few hours on Prime.

So this might be a derp question, but what would in your opinions be the better (More Powerful) chip for transcoding/recoding??? A 3570k @4.7Ghz or a 3770k @4.4Ghz+HT?? Is the HT on the i7 worth more than the 300Mhz extra on the i5??

I know a lot of you are gonna say, "Well test it! Which ever takes the shortest time to recode a movie is the best chip". But he doesn't like swapping the chips about. I've offered to do it for him but nah, he's stubborn!

Would appreciate any opinions, advice, input.... anything at all.
Thanks very much.
 
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anfrax riddimz

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Jun 27, 2013
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10,510
wow it's like i posted this hahhah exact same situation im in ! I can only get it stable at 4.5ghz i cant get it stable past that


no matter how much volts i give it it wont stabilize.

what revision is your chip mine is e1/l1 its reported as in cpu-z

but at 4.5ghz playing bf3 multiplayer 64 map i see an increase in performance definitely

i had my 3570k at 5ghz , and my gpu usage with my crossfire 7870's used to be around 60 - 80 %

with the i7 3770k they both running at 100 % on large map bf3 ! at 4.5ghz

so yeah i see gains with 4.5ghz with hyper threading

hope that helped
 
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po2p

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Jun 5, 2013
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10,510


Attention! My bad, I typed incorrectly. The 3570k is @4.7Ghz but the 3770k is @4.4Ghz not 4.5. Sorry.

Wow, really. I didn't think that HT made that much difference. I was always under the impression it was only equivalent to around 100-150Mhz over a none HT chip at the same clock.
Also when I say "Recoding", I mean Nero 12, to change PAL videos into MP4 or vice versa, if that makes any difference at all.



May I ask why you think that??? Would you say the HT is worth the 300Mhz loss in core clock???



LOL at least he ain't the only one =)

It's a "e4" Costa Rica 3770k. So you would also say the 3770k is better even with the 300Mhz lower clock???

And thank you all for your quick replies.
 
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anfrax riddimz

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Jun 27, 2013
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you know what mate your chip is prob like mine 4.4 is a breeze anything past it is hard

if you go to high on volts it wont stabilize if you go to low same thing you have to find the exact voltage

i can put my chip at stock speeds, and put high volts but it will bsod !

try 4.5 with volts 1.320 UNDER LOAD !

round that area i have it stable there , i tried your volts and i bsod straight away.

lowered the volts to that, works like a charm

were just unlucky but still cant complain still a nice oc !
 
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po2p

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Jun 5, 2013
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Well, after telling him what the replies were on here, I managed to get him to allow me to start swapped the chips and do some testing.

After all the comments saying the 3770k would be better at recoding due to the HT, even with the 300Mhz lower core clock I was expecting the i7 to recode a movie faster...... But.... it didn't! Weirdly, it took the "exact" same time to recode a HD movie with the 3570k @4.7Ghz, the 3770k @4.4Ghz with HT enabled and the 3770k with the HT disabled! :-\
With HT disabled it used 95% of the cores and took 34mins, but with HT enabled it still took 34mins but the core usage went down to 80%. How strange! It must be recoding as quick as it can do it.

Very weird, that 2 different chips at different clocks with and with HT all took the exact same time.

Anyway thank you for your helps guys, much appreciated.
Cheers
 
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po2p

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Jun 5, 2013
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Yeah I had thought of that as well, but he has a 256GB Samsung 840 Pro SSD. Surely that wouldn't bottleneck, right???
 
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