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Intel Core i7-3770K CPU Review

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Baz 23rd April 2012, 17:11 Quote
Just a quicky - a very similar looking review of the 3570K will be going up tomorrow, and they'll probably share the same comment thread - the bit-tech word droids can only write these reviews so quickly after all. I'll just go change their grammato-coils and we should have the 3570K ready in no time. We'll also be covering Intel's HD 4000 graphics, the Z77 chipset, how to overclock both CPUs and some choice Z77 motherboards in separate follow-up articles over the next few weeks.

Cheers!
true_gamer 23rd April 2012, 17:20 Quote
Glad my 3960X is keeping pace. I would have thought they would have given more PCIe 3.0 lanes. As 1 x16 lanes is not good for multi card users.

Great review! :)
Baz 23rd April 2012, 17:26 Quote
Quote:
Originally Posted by true_gamer
Glad my 3960X is keeping pace. I would have thought they would have given more PCIe 3.0 lanes. As 1 x16 lanes is not good for multi card users.

Great review! :)

1 x 16 lanes or 2 x 8 lanes, although that somewhat defeats the point of PCI-E 3.0 I'll admit.

Also, I'm hearing that availability sadly won't be instant - rumour is 29th April for e-tailers to release stock. Bummer.
23RO_UK 23rd April 2012, 17:30 Quote
Well doesn't look like I'll be trading in my 2600K and Sabertooth P67 anytime soon when it can achieve this -

http://forums.bit-tech.net/picture.php?albumid=1307&pictureid=24990
Neogumbercules 23rd April 2012, 17:40 Quote
I was dead set on the 3770k, but seeing the 3750k has me second guessing again. Win/Win!
Madness_3d 23rd April 2012, 17:58 Quote
Thinking about a 3570K & MSI Z77A-GD55...
Baz 23rd April 2012, 18:02 Quote
Quote:
Originally Posted by Madness_3d
Thinking about a 3570K & MSI Z77A-GD55...

I've a similar rig to yourself at home, and am considering the same. Poor old x58 and Nehelem looking a bit tired now.
Spreadie 23rd April 2012, 18:06 Quote
Quote:
Originally Posted by Baz
I've a similar rig to yourself at home, and am considering the same. Poor old x58 and Nehelem looking a bit tired now.
At the risk of sounding like fanboy, I still don't see anything that makes me want to upgrade my 920. I'm happy to leave until next year, I think. :D
zulu9812 23rd April 2012, 18:06 Quote
Bit-Tech seem to have glossed over the rumoured cooling issues. Real-world power draw is all well and good, but I've heard it's the size of chip in contact with a heatsink that makes the difference. Can we have operating temperatures? Overclocked and non-overclocked?
Neogumbercules 23rd April 2012, 18:07 Quote
Should I worry about the high temps? You guys are using an H100 and I'm currently planning on transplanting my Hyper 212+. If you're hitting 100c on that, I can only imagine what an air cooler will do. (melt)
[PUNK] crompers 23rd April 2012, 18:17 Quote
Quote:
Originally Posted by Spreadie
Quote:
Originally Posted by Baz
I've a similar rig to yourself at home, and am considering the same. Poor old x58 and Nehelem looking a bit tired now.
At the risk of sounding like fanboy, I still don't see anything that makes me want to upgrade my 920. I'm happy to leave until next year, I think. :D

ditto, it does everything i want it to very well, so no upgrades for me until i need them. the pull of shiny new hardware is strong, but the reality of my bank balance stronger
Baz 23rd April 2012, 18:18 Quote
Quote:
Originally Posted by zulu9812
Bit-Tech seem to have glossed over the rumoured cooling issues. Real-world power draw is all well and good, but I've heard it's the size of chip in contact with a heatsink that makes the difference. Can we have operating temperatures? Overclocked and non-overclocked?
Quote:
Originally Posted by The Review
Our i7-3770K topped out at 4.8GHz (48x100, VCore 1.34V), reaching a peak delta T of 72°C in a 19°C ambient. Regardless of adjustments to the multiplier, base clock, core voltage or IGP, it simply would not remain stable at any higher speeds, despite CPU temperatures sitting comfortably 10°C below the TJ max.

Sure, that's hot, but then so are similarly clocked 2600/2500K's. You'll need a big cooler or WC to see 5GHz.

At defaults, it idles at 28°C in a 19°C ambient. Under load this rises to 60°C, again in an ambient of 19°C.

From our experience with the chip, it's no cause for concern. With the H100, the coolant doesn't even heat up too much - these high temps seem to be inside the CPU. On a more standard cooler such as the 212 someone else mentioned, I'd expect 4.4-4.6GHz at reasonable temps, no problem at all. You can use much lower voltages at these overclocks (1.2-1.3v).
Gurdeep14 23rd April 2012, 18:20 Quote
Quote:
Originally Posted by Spreadie
Quote:
Originally Posted by Baz
I've a similar rig to yourself at home, and am considering the same. Poor old x58 and Nehelem looking a bit tired now.
At the risk of sounding like fanboy, I still don't see anything that makes me want to upgrade my 920. I'm happy to leave until next year, I think. :D

Agreed, I have a 920 @ 4Ghz and have no reason to upgrade it yet. It runs everything just fine. I'll skip this generation I think.
Bindibadgi 23rd April 2012, 18:22 Quote
Baz you use all ASUS boards in your awesome roundup then post a picture of smelly Gigabits! Sir you wound me! Wouuund meeeeee :'(
Baz 23rd April 2012, 18:24 Quote
Quote:
Originally Posted by Bindibadgi
Baz you use all ASUS boards in your awesome roundup then post a picture of smelly Gigabits! Sir you wound me! Wouuund meeeeee :'(

Now now bindi,got to share! Also, the Asus site wasn't serving the images of the Gene correctly :P
zulu9812 23rd April 2012, 18:36 Quote
Quote:
Originally Posted by Baz
Sure, that's hot, but then so are similarly clocked 2600/2500K's. You'll need a big cooler or WC to see 5GHz.

At defaults, it idles at 28°C in a 19°C ambient. Under load this rises to 60°C, again in an ambient of 19°C.

From our experience with the chip, it's no cause for concern. With the H100, the coolant doesn't even heat up too much - these high temps seem to be inside the CPU. On a more standard cooler such as the 212 someone else mentioned, I'd expect 4.4-4.6GHz at reasonable temps, no problem at all. You can use much lower voltages at these overclocks (1.2-1.3v).

But the issue with temperature isn't the risk of a chip breaking down: it's noise. Load delta of 60°C is very high (I'm assuming this is non-overclocked?). Thus fans have to run at a higher RPM = more noise. The cooling issue was the one thing that was worrying people and it's been largely glossed over. After all, the performance gains over a Sandybridge chip seem negligible - so cooling noise becomes an important consideration when thinking about purchasing. It's almost like you guys don't want to piss off Intel.

EDIT: Or to put it another way,

If I can run Core i7 2700K with cooler H100 at temp. X under fan RPM Y, what fan RPM would I need to run the 3770K at temp. X (same cooler)? Or, what temperature would I get if I ran the 3770K at RPM Y?
jizwizard 23rd April 2012, 18:41 Quote
sorry but them temps are crap. ive just put a h40 on my 2700k running at 5.0ghz with 1.43v and its only hitting 82c when stressed. granted its 20c hotter than my full watercooling kit but its not that hot
feathers 23rd April 2012, 18:41 Quote
Not a great review. No temps section and the overclocking is rather poor as Tweaktown made much clearer.
N17 dizzi 23rd April 2012, 18:44 Quote
Thanks harry, good review. Not changing my CPU any time soon.

Should we expect a 6 core 2011 equivalent?
V3ctor 23rd April 2012, 18:50 Quote
Quote:
Originally Posted by jizwizard
sorry but them temps are crap. ive just put a h40 on my 2700k running at 5.0ghz with 1.43v and its only hitting 82c when stressed. granted its 20c hotter than my full watercooling kit but its not that hot

I have 72ºc with my 2600k@5ghz... And I'm on air... well, my Silverstone FT02R helps :D
dactone 23rd April 2012, 18:50 Quote
ill think ill just keep my 920 for a couple more years :)
dunx 23rd April 2012, 18:54 Quote
Quote:
Originally Posted by Gurdeep14
Agreed, I have a 920 @ 4Ghz and have no reason to upgrade it yet. It runs everything just fine. I'll skip this generation I think.

9x0 @ 4 GHz here.... 62 degrees at 100% load Corsair H70 + 2 38mm fans.

Next !

dunx

P.S. 2 PCI-E 3.0 slots @ x8 = 2 PCI-E 2.0 slots @ x16 so plenty of bandwidth there, IMHO.
Kenny_McCormick 23rd April 2012, 19:10 Quote
I'll keep my 920 'till the next 'tick'.
Combatus 23rd April 2012, 19:15 Quote
Quote:
Originally Posted by feathers
Not a great review. No temps section and the overclocking is rather poor as Tweaktown made much clearer.

Tweaktown were able to draw much stronger conclusions about the temps because they had several Core i7-3770K chips to compare - Intel only sent us one. Not sure how their overclocking section is clearer either - all they've done in addition is provide a CPU-Z screenshot, other than that thet have nearly identical information.
azrael- 23rd April 2012, 19:16 Quote
Any word on when the Xeon E3 v2 and C21x are due?
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