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Thread: 3770k Ivy Bridge benchmarked, power usage.

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    Exclamation 3770k Ivy Bridge benchmarked, power usage.

    I think this is a first. 3770k (2600k replacement) benched, CPU and built in GPU.

    Anandtech Preview

    source (tpu)

    Nice to finally get some concrete numbers! Solid gains in things like multi threaded 7 zip, gains all around, but less IPC gains then I was expecting overall.

    Hmm... decisions.
    Last edited by Millennium; 07-03-2012 at 11:36 AM.
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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Power consumption is no better than a standard Core i5!!

    BTW,it looks like Anandtech has got a really crap Core i7 2600K example:

    http://www.anandtech.com/show/4083/t...2100-tested/21

    In their previous reviews the Core i5 2500K and Core i7 2600K had the same power consumption. Why no Core i7 2700K too??

    I was expecting the 22NM finfets to be better. I should have got one of SB quad cores when I had the chance to get one cheap a while back!!

    The HD4000 IGP is no doubt better,but is it any better than the HD6530D found in the £57 A6-3500 though? Since most Intel IB CPUs will have an HD2500 IGP,it does not bode well.

    Tick+ my arse.
    Last edited by CAT-THE-FIFTH; 07-03-2012 at 01:16 PM.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    It looks like the current Llano CPU's still wipe the floor with Intel's much improved on processor graphics, despite Intel's effective 2 process node advantage (22nm + tri gate)
    I'd expect Trinity to substantially widen the Graphics gap and hopefully narrow the lightly threaded CPU gap.
    After seeing the original Llano reviews, memory speed really restricts what it is capable of - I don't believe Trinity will have some sort of shared cache between the CPU and GPU but if they did manage to add 4-8MB of shared CPU/GPU cache or even some exclusive GPU cache I reckon that will be enough to unlock the huge shader power advantage AMD has.
    My upgrade will almost certainly be an Ivy Bridge 3570K or Top end Trinity based system.
    TBH Ivy bridge is pretty much a known quantity now so it's up to Trinity.
    Trinity will need to either be close enough in single and multi threaded CPU power to Ivy bridge that it will not need upgrading for 5+ years or I will need to be convinced that the Socket will take a Future AMD CPU that will be much faster.
    I'm all ready pretty sure that Trinity as a whole system will use a lot less power than Ivy Bridge.
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    Re: 3770k Ivy Bridge benchmarked, power usage.

    I'm considering* an upgrade for my gaming rig and Ivy is definitely an option, the hype did have me expecting more performance but that's not to say I'm disappointed, the reasonable part of me expected regular Tick increases. TBH though the hype implied massive performance increases with like 2w TDP and it wouldn't have been wise to have the desktop part outperforming the SNB-E workstation CPUs.

    IGP is moving in the right direction, but I don't understand the reasoning behind putting the most powerful IGP in the CPUs most likely to be used with discrete cards, what a waste. They also need to add AES to the i3/5 CPUs really, any confirmation on what CPUs will have what features fused off yet?

    And since the socket has been around for Tock+Tick, I really wouldn't expect Haswell to use the same socket, factor that into any paths you're considering. AMD have kept the same basic AM3+ socket for probably longer than ideal but it implies the trinity socket will last a while.

    *No, it's not necessarily sensible but I know fellow Hexites will understand. xD

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Oh, there is a good reason why the best IGPs are in the i7s.......laptop/ultrabook profits.
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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Yeah, but for desktop parts? I can't see most consumers wanting to spend the difference between an i3 and i7 system on a desktop with a slightly better IGP? Of course I could be wrong, I mean there are real, living people who will happily spend £250 on a 1m HDMI cable...

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    I still don't understand why the Core i7 2600K Anandtech tested this time magically has much higher power consumption than a Core i5 2500K??

    Sandy Bridge launch figures



    Ivy Bridge preview

    Last edited by CAT-THE-FIFTH; 07-03-2012 at 02:15 PM.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Different CPU with different VID?

    Different testing rig?

    Different BIOS settings?

    Intel back-hander?

    Tkae your pick!
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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Quote Originally Posted by shaithis View Post
    Different CPU with different VID?

    Different testing rig?

    Different BIOS settings?

    Intel back-hander?

    Tkae your pick!
    Sorry but such a huge increase in power consumption for the Core i7 2600K seems off. Look at the Core i5 figures -they are comparable.

    So either the SB launch figures touted by Anandtech were unrealistic or the IB preview figures are off.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    I agree it does look a bit off, however the difference in load power can depend on the application + threading performance. Linpack, for instance, causes a ~15w increase on the 12v connector with IGP disabled, according to Lostcircuits. But the ~22w jump shown by Anandtech does seem quite high.

    Considering they don't list what they used for load power in the original article, they probably picked a worst/best-case program, while in the Ivy article, they picked only a test which increases power by a fair bit with HTT to show the Ivy in a better light next to the 2600k. CPU power isn't a fixed value, any decent review should have measurements from a wide range of applications.
    Last edited by watercooled; 07-03-2012 at 02:43 PM.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    I think I am going to wait for the full reviews to make a judgement on power consumption,and see what other websites report.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    The IB preview clearly uses a different power draw load test, as the numbers for a few of the CPUs look off - in the SB launch review the Phenom II X4 draws slightly more power than the Phenom II X6, yet in the IB preview the X6 draws significantly more power than the X4 (as you'd expect). I suspect that the SB launch review didn't fully load the CPUs capable of handling more than 4 threads, tbh - the power draws have gone up across the board, but more so for the > 4 thread CPUs.

    Basically, don't read too much into the cross-chart comparisons, just look at the comparison in that one chart.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Quote Originally Posted by scaryjim View Post
    The IB preview clearly uses a different power draw load test, as the numbers for a few of the CPUs look off - in the SB launch review the Phenom II X4 draws slightly more power than the Phenom II X6, yet in the IB preview the X6 draws significantly more power than the X4 (as you'd expect). I suspect that the SB launch review didn't fully load the CPUs capable of handling more than 4 threads, tbh - the power draws have gone up across the board, but more so for the > 4 thread CPUs.

    Basically, don't read too much into the cross-chart comparisons, just look at the comparison in that one chart.
    I just checked the FX8150 review and the new "updated" Core i7 power draw numbers seem to be there and yet Anandtech bench(which loads of people use) has not been updated:

    http://www.anandtech.com/bench/Product/288?vs=287

    On top of this the preview does not use the updated FX8150 numbers they have either:

    http://www.anandtech.com/show/5448/t...g-patch-tested

    That is sloppy and the SB launch power draw comparisons seem a joke.

    Personally,I think Anandtech has gone down hill a bit in the last year or so,as I think Anand has got more people on board to help with reviews as the work load as increased.
    Last edited by CAT-THE-FIFTH; 07-03-2012 at 04:56 PM.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    I think I have cracked it. I just checked the bench results and it says first pass video encoding results for the original review,which Anandtech did not state at the time. The same benchmark is used according to bench.

    The newer reviews use exactly the same benchmark but with second pass results.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Sounds right. IIRC the first pass is lightly threaded, while the second pass is heavily threaded, which would explain a) the overall power draw increase, and b) the disproportionate increase for CPUs which can handle more threads.

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    Re: 3770k Ivy Bridge benchmarked, power usage.

    Wow! That is sloppy work indeed.

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