Core i7 3770K & 3750 review with Z77 DZ77GA-70K mobo [Guru3D.com]

[Ryu5uzaku]

hmm they do clock bit worse and the 3770k seems to produce more heat then 2xxx. but really uses less power and is bit faster.

i didn't really even expect anything magically good. it's not like jump in original core processors was big when clock to clock you know tick tock. going to smaller fab hasn't been "amazing amounts of more performance" iirc. just maybe better oc and less power hungry.

[thatguy91]

Originally Posted by Virtue

I'm talking about the CPU DTS which measures the temperature of each core directly. The "CPU temp" you're talking about is from a diode that's not directly attached to CPU, but underneath or close to it.

That's what I was thinking of! Thankyou for clearing that up I know that people confuse the two, and some programs even confuse them!

[Neo Cyrus]

IB would be cooler and clock higher if that IGP wasn't in it, but Intel are keen on it for mobile parts.

[Mufflore]

Originally Posted by airbud7

What about the 990X(OC).....Is it Beat????.....Just want the Truth....Thanks........

All is revealed
http://forums.guru3d.com/showthread.php?p=4300657

[Lane]

Im not sure the IGP in itself is the case, the problem seems to come from the place... the surface is not enough big for dissipate heat.

Now: the problem is after 1.3-.35, the cpu/core temps start to skyrocket... So today it is easy, it look like most reviewers have got the consign to dont use more of 1.35v..

At 1.35V, the 3770K look to OC better, it need 0.05-0,07V less of the 2600K for achieve 4.7-4.8ghz ... But the problem is the 2600K was taking without worry 1.45-1.55V with a "normal air cooler "...

The second problem with the ones tested, is at the moment the temperature increase so much, the overclocking scaling with voltage become worse and worse.

without saying, if you compare both CPU clock to clock.. the gain is really marginal.

Taken from Hardwarecanuck article: ( clock to clock performance )



I will wait to see first OC cpu results come back, and see how they OC under H2o... if it can fix this temperature problem.. and can achieve higher clock of my 2600K, it will be time for see if it worth the motherboard and cpu investment.

Ofc first results under DryIce and LN2 look a lot better.

If not, x79 will do the job.

[PhazeDelta1]

Its more of a side grade if you already have a 2600k/2500k. But this is Guru3d, where we upgrade ur parts for teh lulz.

[Lane]

Originally Posted by Firestorm

Its more of a side grade if you already have a 2600k/2500k. But this is Guru3d, where we upgrade ur parts for teh lulz. :d

Its what worry me a bit right now... If thoses CPU goes easy to 5.5-5.6ghz under H2o for benchmark, this is good, but if you are constrain to similar clock of the 2600K ( let say 5.2-5.3ghz in average case )... it will not worth the investment ( even from an overclocking and bench point of view )

[Mufflore]

Its certainly not worth upgrading from a clocked 2500K.
Especially when changing CPUs can damage the motherboard socket pins and they have no warranty cover.

[PhazeDelta1]

Originally Posted by Lane

Its what worry me a bit right now... If thoses CPU goes easy to 5.5-5.6ghz under H2o for benchmark, this is good, but if you are constrain to similar clock of the 2600K ( let say 5.2-5.3ghz in average case )... it will not worth the investment ( even from an overclocking and bench point of view )

True

But even if they could get the temp under control in a newer revision, is that extra 300mhz oc really worth it?. Your bound to reach a plateau with either cpu at some point. You would be better off putting that extra cash towards something else.

[Lane]

Originally Posted by Firestorm

True

But even if they could get the temp under control in a newer revision, is that extra 300mhz oc really worth it?. Your bound to reach a plateau with either cpu at some point. You would be better off putting that extra cash towards something else.

Absolutely not for gaming or average user .. I try just to figure if in the case of H2o, benching, it can worth the investement ( benching, as a 300mhz faster will give a pretty good score advantage without upgrading to a third gpu, this ofc if you are not unlucky and got a bad overclocker ) ..

[kapu]

I'm on i5 750 @ 4.0GHz ( The OLD dog ) and i still dont see the point of upgrade.

And i wanted to spend some money big time.

[Zboe]

Originally Posted by Mufflore

Its certainly not worth upgrading from a clocked 2500K.
Especially when changing CPUs can damage the motherboard socket pins and they have no warranty cover.

No excuse for that kind of negligence. If you even pay half attention this should never be an issue. The fact you even say that on this kind of site worries me actually. That is not a valid reason for deciding not to change a CPU.

[Darren Hodgson]

I'm not impressed by these new chips at all, particularly the high temperatures when overclocking. Seems to me that the i7-2600K is better for overclocking and just as fast for most tasks at the expense of slightly higher power consumption.

And to think I had my mind set on upgrading to Ivy Bridge at the start of this year. I think I'm more than happy to wait for something better to come along, whether that's Haswell or whatever.

[Mufflore]

Originally Posted by Zboe

No excuse for that kind of negligence. If you even pay half attention this should never be an issue. The fact you even say that on this kind of site worries me actually. That is not a valid reason for deciding not to change a CPU.

Well I'm no newb to PC building and my first 2 P67 boards got bent pins in the socket in different places, one was from Asus, the other Gigabyte.
Both were with different 2500k CPUs.

The Asus bit it first, then I got the Gigabyte and was super super careful, same bloody thing, i couldnt believe it!

Despite following the instruction leaflet they both were dead and with no warranty cover.
These sockets are very fragile and there will inevitably be some that are easier to damage.
They know there is a rate of failure, but none of them are covered under warranty.

You can bend the pins taking the CPU out as well as fitting.
I recommend turning the board upside down to extract the CPU.

fyi
Gigabyte replaced the board without expressing a reason.
I couldnt get past Overclockers UKs support to even try and RMA the Asus board, so I took a £150 hit on that board and learned where not to shop (again, sucker for punishment).

[slickric21]

I'm going to get the 3770k definatley.

Only got the 2500k 6 months ago as a cheap tide me over until Ivy Bridge. i7 is really what I want in my rig.

PCI-E 3.0 means I can Sli/X-Fire with no performance penalty in future, plus the new Lucid Vitru MVP seems interesting..(Hyperformance mode especially)

[IPlayNaked]

I don't know, I tend to agree with him. Pins are fickle things, and while I wouldn't stave off an upgrade based on that, I can't say that I would blame someone for saying it.

God knows the horror I've felt bending pins in the past.

Originally Posted by slickric21

I'm going to get the 3770k definatley.

Only got the 2500k 6 months ago as a cheap tide me over until Ivy Bridge. i7 is really what I want in my rig.

PCI-E 3.0 means I can Sli/X-Fire with no performance penalty in future, plus the new Lucid Vitru MVP seems interesting..(Hyperformance mode especially)

Honestly, PCI-E 3.0 will offer no benefit in speed, even with crossfire/SLI.

And, as someone who has tried out Hyperformance...its crap. It doesn't offer any performance boost in most games, a marginal one in others, and some games don't even start up, just crash on launch.

There's the no-tearing, novsync part of it...But I've found its not worth the headache of crashing games all over the place.

[RamGuy]

Looking at IvyBridge from a HTPC perspective it seems like the integrated Intel HD 4000 graphics should be plenty for all kinds of 1080P playback no matter if it's mkv, m2ts encoded with h264, mpeg4 or whatever.

It seems to be able to put up with a fair amount of game titles as well if you are willing to accept 30-40 FPS without any kind of anti-aliasing and not play on the highest settings.


But my biggest grip with Intel and their integrated graphic solutions in the past has always been their drivers and the lack of optimization and hardware accelerating support in quite a lot of software out there. Will this still be the case with IvyBridge and Intel HD 4000 I wonder? How well supported will the hardware acceleration be from software like Corel WinDVD, Cyberlink PowerDVD, XBMC etc.. Not to mention games in general?


I still feel like solutions like Mac Mini and others featuring AMD Radeon HD 6630M and Cataclyst drivers is a safer bet even-though it's raw performance shouldn't be much better than the Intel HD 4000, but here you are almost certain you'd get hardware acceleration support from all kinds of software.

[IPlayNaked]

Originally Posted by Darren Hodgson

I'm not impressed by these new chips at all, particularly the high temperatures when overclocking. Seems to me that the i7-2600K is better for overclocking and just as fast for most tasks at the expense of slightly higher power consumption.

And to think I had my mind set on upgrading to Ivy Bridge at the start of this year. I think I'm more than happy to wait for something better to come along, whether that's Haswell or whatever.

Indeed. Hilbert here is using a big Noctua cooler, and cranked the volts up to 1.4...And you can see that's not nearly enough to keep it cool for such an overclock.

On the overclock page the processor package is maxed 93C. It must be throttling heavily.

[slickric21]

Originally Posted by IPlayNaked

Honestly, PCI-E 3.0 will offer no benefit in speed, even with crossfire/SLI.

And, as someone who has tried out Hyperformance...its crap. It doesn't offer any performance boost in most games, a marginal one in others, and some games don't even start up, just crash on launch.

There's the no-tearing, novsync part of it...But I've found its not worth the headache of crashing games all over the place.

Oh okay, I had my suspicions about the new Lucid Viru MVP eg why no-one was talking about it if it really did offer benefits in games !!! Guess its just a gimmick at the mo still then.
The tweaktxxn and TomsH guides on MVP show some improvements at res's up to 1080p, but performance degradation on higher resolutions, but both mentioned some problems with games crashing etc etc.

I'm still inclined to think that PCI-E 3.0 is a good choice for a Z68 owner who wants to go Sli/X-fire though seems like AnandTech agree

Going forward, for Ivy Bridge owners this will be good news. Even with only 16 PCIe 3 lanes available from the CPU, there should be no performance penalty from utilizing x8 configurations in order to enable CrossFire or other uses that would rob a 7970 of 8 lanes. But how about existing Sandy Bridge systems that can only support PCIe 2? As it turns out things aren’t quite as good.

Moving from PCIe 2 x16 (8GB/sec) to PCIe 2 x8 (4GB/sec) does incur a generally small penalty on the 7970. However like most tests this is entirely dependent on the game itself. With games like Metro 2033 the difference is non-existent, while Battlefield 3 and Crysis only lose 2-3%, and DiRT3 suffers the most, losing 14% of its performance. DiRT3’s minimum framerates look even worse, dropping by 19%. As DiRT3 is one of our higher performing games in the first place the real world difference is not going to be that great – it’s still well above 60fps at all times – but it’s clear that in the wrong situation only having 4GB/sec of PCIe bandwidth can bottleneck a 7970.

[IPlayNaked]

Originally Posted by slickric21

Oh okay, I had my suspicions about the new Lucid Viru MVP eg why no-one was talking about it if it really did offer benefits in games !!! Guess its just a gimmick at the mo still then.
The tweaktxxn and TomsH guides on MVP show some improvements at res's up to 1080p, but performance degradation on higher resolutions, but both mentioned some problems with games crashing etc etc.

I'm still inclined to think that PCI-E 3.0 is a good choice for a Z68 owner who wants to go Sli/X-fire though seems like AnandTech agree

Tom's hardware does a review about this every so often, and every single time, they come up with...8x or more lanes, it really doesn't matter above that.

But with the 7970, maybe you'll see a little benefit from having two 3.0 slots. Personally, if I already have Sandy (I do) I wouldn't bother...You'd probably be better off just getting the 7990/690 when it comes around and use your x16 slot. Your call though.

[TechFreaK]

Originally Posted by IPlayNaked

Honestly, PCI-E 3.0 will offer no benefit in speed, even with crossfire/SLI.

And, as someone who has tried out Hyperformance...its crap. It doesn't offer any performance boost in most games, a marginal one in others, and some games don't even start up, just crash on launch.

There's the no-tearing, novsync part of it...But I've found its not worth the headache of crashing games all over the place.

Depends on what resolution, and how many gpus


For 4x 680gtx @ 4500x1600? something resolution it is a bottleneck and PCIe 3.0 is the only way to go.

part1
http://www.youtube.com/watch?v=S0-xcxAvu54

part2
http://www.youtube.com/watch?v=tkZzssm-kWs

[RamGuy]

Another thing about HTPC usage, how does the Intel HD 4500 Graphics work in combination with a dedicated card like HD 7870? Is there some smart driver going making you use the integrated graphics while idling, surfing the web and other things not requiring the added performance of the dedicated graphics card like on recent notebooks.

Or would you be stuck utilising the dedicated card only and rely on it's 2D and 3D clock features for power savings?

[Mufflore]

Originally Posted by TechFreaK

Depends on what resolution, and how many gpus


For 4x 680gtx @ 4500x1600? something resolution it is a bottleneck and PCIe 3.0 is the only way to go.

Have you any proof that it is better than 4 x PCI-e 2.0 x16?

[Noisiv]

There are some benchies on NV Forums.

Even with 680 SLI and 1920x1080, there is 5-10% difference.
And about 50% difference on 5760x1080.

(Bars are bit weird. They represent min,max,avg over two runs)

 Click to show spoiler

[teleguy]

Originally Posted by RamGuy

Another thing about HTPC usage, how does the Intel HD 4500 Graphics work in combination with a dedicated card like HD 7870? Is there some smart driver going making you use the integrated graphics while idling, surfing the web and other things not requiring the added performance of the dedicated graphics card like on recent notebooks.

Only on mainboards that support Lucid Virtu.

http://www.lucidlogix.com/product-virtu-gpu.html