Intel Core i7-3770K Review: A Small Step Up For Ivy Bridge

Benchmark Results: Media Encoding

Lame is another single-threaded title that we know will reward the most efficient architecture running at the highest clock rate.

Ivy Bridge, enjoying subtle IPC-oriented improvements, scores a narrow victory when Turbo Boost kicks in.

Because Core i7-3960X and Core i7-2700K hit similar single-threaded clocks, they show similarly in our Lame test.

Without overclocking, the Core i7-3930K can’t quite keep up to Intel’s Core i5-2550K (after all, six cores isn’t an advantage in a test only capable of taxing one).

We see a very similar situation play out in iTunes. Some of the Sandy Bridge-based chips swap places, but they’re all very, very close together. Most notable is that the Core i7-3770K takes first yet again.

The performance you can expect from Ivy Bridge is fairly easily characterized in one of two ways: lightly-threaded apps that favor an efficient architecture tend to show the design in a positive light against competing architectures at the same clock rate, while more parallelized workloads favor Sandy Bridge-E, so long as it wields more cores.

You’ll notice I left the -3820 out of this review altogether. I cannot come up with any situation where the -3820 is a product I’d recommend, even in a world without Ivy Bridge. If you’re going to spend big on Sandy Bridge-E, go for a six-core model, at least. If not, Sandy Bridge, Z68, and dual-channel memory kits are a better buy.

MainConcept illustrates the reason why nicely. At stock clocks, there’s a nice, gradual progression from -3960X, -3930K, -3770K, and -2700K. The larger drop-off happens when you shift down to the -2550K and AMD’s offerings.

The exact same conclusion applies to HandBrake, a front-end for the x264 encoder. Intel’s six-core chips rock, though it’s easy to get good performance from the quad-core, Hyper-Threaded models when cash is more of a concern.

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    Top Comments
  • verbalizer
    OK after reading most of the review and definitely studying the charts;
    I have a few things on my mind.

    1.) AMD - C'mon and get it together, you need to do better...
    2.) imagine if Intel made an i7-2660K or something like the i5-2550K they have now.
    3.) SB-E is not for gaming (too highly priced...) compared to i7 or i5 Sandy Bridge
    4.) Ivy Bridge runs hot.......
    5.) IB average 3.7% faster than i7 SB and only 16% over i5 SB = not worth it
    6.) AMD - C'mon and get it together, you need to do better...

    (moderator edit..)
    32
  • Maziar
    Great review as always Chris! looks like I'm staying with my 2500k for a while!
    30
  • Anonymous
    Now I'm happy for buying 2500K instead of waiting for IB. :)
    23
  • Other Comments
  • tecmo34
    Nice Review Chris...

    Looking forward to the further information coming out this week on Ivy Bridge, as I was initially planning on buying Ivy Bridge, but now I might turn to Sandy Bridge-E
    18
  • Maziar
    Great review as always Chris! looks like I'm staying with my 2500k for a while!
    30
  • jaquith
    Great and long waited review - Thanks Chris!

    Temps as expected are high on the IB, but better than early ES which is very good.

    Those with their SB or SB-E (K/X) should be feeling good about now ;)
    7
  • xtremexx
    saw this just pop up on google, posted 1 min ago, anyway im probably going to update i have a core i3 2100 so this is pretty good.
    5
  • ojas
    it's heeearrree!!!!! lol i though intel wan't launching it, been scouring the web for an hour for some mention.

    Now, time to read the review. :D
    7
  • zanny
    It gets higher temps at lower frequencies? What the hell did Intel break?

    I really wish they would introduce a gaming platform between their stupidly overpriced x79esque server platform and the integrated graphics chips they are pushing mainstream. 50% more transistors should be 30% or so more performance or a much smaller chip, but gamers get nothing out of Ivy Bridge.
    -3
  • JAYDEEJOHN
    It makes sense Intel is making this its quickest ramp ever, as they see ARM on the horizon in today's changing market.
    They're using their process to get to places they'll need to get to in the future
    5
  • verbalizer
    OK after reading most of the review and definitely studying the charts;
    I have a few things on my mind.

    1.) AMD - C'mon and get it together, you need to do better...
    2.) imagine if Intel made an i7-2660K or something like the i5-2550K they have now.
    3.) SB-E is not for gaming (too highly priced...) compared to i7 or i5 Sandy Bridge
    4.) Ivy Bridge runs hot.......
    5.) IB average 3.7% faster than i7 SB and only 16% over i5 SB = not worth it
    6.) AMD - C'mon and get it together, you need to do better...

    (moderator edit..)
    32
  • Pezcore27
    Good review.

    To me it shows 2 main things. 1) that Ivy didn't improve on Sandy Bridge as much as Intel was hoping it would, and 2) just how far behind AMD actually is...
    5
  • tmk221
    It's a shame that this chip is marginally faster than 2700k. I guess it's all AMD fault. there is simply no pressure on Intel. Otherwise they would already moved to 8, 6, and 4 cores processors. Especially now when they have 4 cores under 77W.

    Yea yea I know most apps won't use 8 cores, but that's only because there was no 8 cores processors in past, not the other way around
    -10
  • pacioli
    I don't know what to say... I'm not feeling jittery about upgrading and blowing $ on a new system... That is good I guess.
    I would have liked to see a bigger jump in performance. I'm still very satisfied with the i5 2500K system I built last year... This may actually be bad for Intel as they simply didn't innovate as much as I thought they would...
    1
  • Anonymous
    Now I'm happy for buying 2500K instead of waiting for IB. :)
    23
  • MKBL
    It has been rumored that Ivy Bridge will be more expensive than comparable Sandy Bridge because of limited launch supply for a while. Is that right that Intel really will set Ivy's price low?
    4
  • duckwithnukes
    I was more interested in the peak power consumption difference between Sandy Bridge and Ivy Bridge while running the processors at full load. That's where the real savings in power will be attained.

    It's clear that while idling, there won't be much of a difference.

    Too bad Tomshardware dropped the ball on that one.
    -1
  • Pezcore27
    607455 said:
    It has been rumored that Ivy Bridge will be more expensive than comparable Sandy Bridge because of limited launch supply for a while. Is that right that Intel really will set Ivy's price low?

    Ivy bridge's prices are expected to be lower than the current SB prices, yes.

    They have an expected pricing guide in the anandtech review.

    http://www.anandtech.com/show/5771/the-intel-ivy-bridge-core-i7-3770k-review/2
    -6
  • halcyon
    sublime2kNow I'm happy for buying 2500K instead of waiting for IB.

    I went with the 2500K too...but I kinda wish I'd gone with a 2700K...even if it is just for gaming. IB is beyond what I need right now...this month at least.
    0
  • gti88
    I think, I'll upgrade my 775 to Sandy Bridge.
    I was waiting reviews just to be sure.
    6
  • hellfire24
    it's not an 'upgrade',it's just an 'update'.
    don't regret yourself if you have a SB cpu!
    3