Mac Pro :: 8 Core CPU Temperatures Extremely Cool?
Feb 23, 2010
I have an octo 2.8 which I use at 3.2 overclocked, and I have been running handbrake for 20 hours straight, utilizing all 8 cores. So the machine has been working full capacity for 20 hours, and I check CPU temperatures with Hardware Monitor, and they are 55 degrees. These CPU's are ok up to 100 degrees or so. So how can they stay that cool even at full load? I wish I could overclock them even further but RAM's can't be overclocked further so I need to stop at 3.2 Ghz.
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Oct 22, 2009
Just wondering if anyone with a new 21.5" iMac would be so kind enough to post the system temps from a app such as iStatpro. I'm interested to see how hot/cool they run.
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Aug 2, 2007
I am a longtime Firefox on PC user and recently got a new Mac with a pretty spiffy Core 2 Duo processor. I am totally impressed with the speed of the machine, except Firefox scrolling performance when Smooth Scrolling feature is activated. (Preferences > Advanced > "Use smooth scrolling")
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Dec 4, 2010
I see the numbers of everything from Core 2 Duo, to the slightly faster and cooler Core i3, to the supposedly faster core i5s and i7s. The benchmarks go up accordingly, but I found this does not always equate in a faster experience on most tasks.
Here's my experience so far on processor upgrade:
In one computer trade school re-certification class I am in, we are working with Windows Server 2003 on a Quad Xeon platform and it's incredibly slow.
But in a previous class we had the previous generation server edition on older Xeons, and while not fast, it was much better. On paper the newer multi-core Xeons should have made a difference, but could 2003 server software be that much more bloated than the previous Windows server edition that it would stall like that and make us wish we had the older setup?
I am going to try out the Adobe CS lab and put the new high end Dells to the test there and see if they work better than when we had an older CS version on older Xeon equipped Dells.
I don't know if this is something to do with Dell, or if Apple's increasing processor bumps/generations are going to similarly not make a difference in the speed things appear to go at, whether it's Adobe stuff, server stuff, or anything else that needs power.
I know somebody who plans on a Core 2 Duo, i5 or i7 MBP and I was wondering if the higher end processor is worth it in that case (iMovie being the main program of use).
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May 25, 2009
this is my first iMac, so Ive this questions;
In these days it's very hot here, 32� (90F) and over, and my room is exposed at sunlight all the afternoon, and its not very big.
I hold the window closed, but its always hot in the house, 26� (79F) or more.
If I hold the iMac turn on (with minimum brightness) for 10 or more minutes he starts to be heated, and now for example, that is night and I've 24�(75F) in my room, I've these temperatures:
It's normal?
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Jul 1, 2010
I'm using iStat Pro and I'm just wondering what "too hot" is as far as temperatures go, specifically CPU, HD? I play CS Source and Warcraft 3 occasionally and it tends to get very hot. Up to about 176 degrees F.
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Jul 13, 2009
I bought my first Mac a few weeks ago and so far I'm very happy with my decision to switch from Windows to Apple. But there is one thing that worries me..the temperatures. Here's a screenshot from istat pro. Are these temperatures normal (especially the temperature of the power supply)?
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Jun 6, 2012
My 2009 13" Unibody MBP will overheat if I so much as look at it, or so it seems!. The issue here is that the fan will come on really loudly and the bottom of the machine will become unbearably hot under the following conditions:
1. CPU load = 20%, temp = 76 C, browsing the web
2. CPU load = 33%, temp = 77 C, watching an online video
3. CPU load = 35%, temp = 82 C, watching a movie on lovefilm
3. The lid of the laptop is closed, and I am carrying it in a bag
4. I am charging it with the lid closed.
5. Using an external monitor I have to keep the lid open and on battery use, otherwise it overheats and the fan come on loudly. Obviously if I shut it down there is no fan noise, however it still gets hot when charging.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Mar 8, 2009
Lately I've been feeling my 24" Alu-iMac (Prev. Gen 3.06) and it's feeling really hot. I got iStats and here are my temperatures:
CPU A: 108 F
Airport: 140 F
Ambient: 75 F
GPU: 122 F
GPU Diode: 131 F
GPU Heatsink: 122 F
HD Bay 1: 136 F
Memory Controller: 117 F
Optical Drive: 120 F
Power Supply: 165 F
Macintosh HD: 135 F
Fans:
CPU: 1200 rpm
HD: 1198 rpm
Optical Drive: 698 rpm
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Jun 11, 2010
I've recently uninstalled Fan Control and smcFanControl from my Macbook Pro, after trying them for a minute or two. I reset my SMC by using the method on Apples website (Clicking Shift-CTRL-Option-Power Button at the same time). It haven't worked it seem, as I have tried running some games and even at 85-90C degree, its not increasing its RPM. I don't wanna go any higher as I don't wanna risk the CPU overheating.
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May 21, 2012
My iMac 27" quad-core i5 seems hot. I'm using Temperature Monitor
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What temperature range(s) are normal for this computer?
Info:
iMac (27-inch Mid 2010), Mac OS X (10.6.8), 12 GB RAM
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Jun 18, 2012
I purchased my iMac in March and am a bit concerned about the operating temps and fan speeds. Maximums today (all in degrees C, using Temperature Monitor):
Ambient Air: 32
CPU A Heatsink: 53
CPU A Proximity: 55
CPU Core 1: 57
CPU Core 2: 59
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Info:
iMac (21.5-inch Mid 2011)
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Aug 3, 2009
Just curious as to how much of an improvement in performance I would see upgrading my system as it states above, since my 2006 machine is 3 years old and getting close to the end of my apple care, figured I would trade it in and upgrade.
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Oct 21, 2009
I do alot of photography with a canon dslr, I also plan to edit short HD videos as well as some photoshop and flash animation work.
Will I benefit greatly from the Quad Core Imac over the Dual Core Imac?
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Oct 4, 2010
Has anyone that know if it's possible to upgrade MacPro Nehalem 2.26 to 2.66 Ghz Westmare with the following processors : Intel Hexa Core Xeon? Processor X5650 12M Cache, 2.66 GHz, 6.40 GT/s Intel? QPI part #:BX80614X5650 ? Could you help me telling if it?s possible to upgrading MacPro Nehalem octa core 2.26 Ghz to Mac Pro Westmare hexa core 2.66 Ghz ?
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Mar 6, 2008
I have an opportunity to get a single 3.0 GHz quad core Clovertown.
Should I go for it? There's no advantage to having two cores in two sockets versus having four cores in one socket, right?
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Apr 1, 2008
is it even possible to upgrade an old dual core powermac g5 to a quad core or even an 8 core.
I have a dual core one and i really need to upgrade to a quad or even 8 but it is so expensive to buy a whole brand new one and i was wondering if there was a way to just get a new processor and more ram or what not.
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Feb 2, 2009
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What you say guys?
I know the same article is on main page
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Oct 22, 2009
So the older Mac Pro's from 2008 have 2 2.8ghz Quad Core Intel Xeon processors, without hyperthreading, for a total of 8 cores, and the top of the line iMac has a Quar Core i7 2,8ghz with hyperthreading for a total of 8 (virtual) cores.
With the ghz being the same but less "real" cores, but probably newer CPU architecture, which CPU will actually be faster?
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Apr 18, 2010
There's a lot of people wondering if the 13" MBPs would have been a lot better with a Core i3 processor, but everything has been just hangups over perceived old vs. new technology, and really the only thing the Core i3 adds is Hyper-Threading, but it doesn't have Turbo Boost, which helps the Core i5/i7s tremendously. Let's compare using Geekbench since it is cross-platform and one of the few available sources of info...
Core 2 Duo P8600 2.4GHz (~3362)
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vs.
Core i3 330m 2.13GHz (~3472)
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Core 2 Duo P8800 2.66GHz (~3700)
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vs.
Core i3 350m 2.26GHz (~3680)
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As you can see in both cases, the difference is pretty minimal indeed, and in single threaded applications, the C2D will easily outdo the Core i3 which lacks Turbo Boost and runs at lower clock rates.
And you get a 320M instead of Intel HD graphics with the new 13".
The Geekbench results from the old 15/17" to the new 15/17" are quite an order of magnitude better.
So unless people are expecting Core i5 processors in the 13", sticking to the C2D was actually a good decision, and given the differences between 2.4 and 2.53 isn't so large, one is far better buying the base 13" and then putting the money saved towards a good 7.2k HDD or SSD.
Note - I took averages of the 32-bit numbers and added them.
Note 2 - The C2D Pxxxx are 25W TDP processors, which are more efficient than the Core i3 which are 35W TDP processors. Less heat, better battery life from C2Ds.
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Apr 29, 2010
I've been debating whether or not to upgrade my 3 year old 15" Macbook Pro that has a 2.2Ghz Core 2 Duo (Santa Rosa) to the new 13" 2.4Ghz Macbook Pro. FYI... My current system also has 4GB of RAM. Since both systems are Core 2 Duo, what kind of speed bump am I going to see? Would this be a substantial upgrade?
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May 28, 2012
I'm buying a new MacBookPro but can't decide, due to lack of knowledge, wich one to choose and if there's a noticeble difference between, 15.4" MacBook Pro Notebook Computer 2.2GHz Intel Core i7 Quad-Core4GB of DDR3 RAM500GB 5400rpm Hard DriveAMD Radeon HD 6750M 512MB Graphics15.4" LED-Backlit Glossy Display1400 x 900 Native ResolutionSlot-Loading SuperDrive802.11a/b/g/n Wi-Fi, Bluetooth 2.1+EDRFaceTime HD Camera, Built-in MicrophoneMac OS X 10.7 Lion (64-bit)
and the 13.3" MacBook Pro Notebook Computer 2.8GHz Intel Core i7 Dual-Core8GB of DDR3 RAM (2x4GB)750GB 5400rpm Hard DriveIntel HD 3000 Graphics13.3" Glossy Widescreen Display1280 x 800 Native ResolutionSuperDrive, Secure Digital Card SlotFaceTime HD Camera, Omnidirectional Mic802.11n Wi-Fi, Bluetooth 2.1+EDRMac OS X 10.7 Lion
Besides the screen size, one would be considerable faster?
I use Photoshop and beeing a photographer I deal with large files.
Info:
MacBookPro 2.66GHz 4GB 1067MHz DDR3, Mac OS X (10.6.2)
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Sep 1, 2010
I just bought a iMac 27" i5 version with the 2-TB Hitachi HDD.
Under browsing:
Fan-speeds:
ODD: 998 rpm
HDD: Always 1100 or above
CPU: 939
Temperatures:
ODD: 46C
HDD: 57C
CPU: 43C
The only thing what bothering me is the loud HDD fan. Really annoying.
So, what for iMac have you and what are the fan-speeds and temperatures of your iMac? And of-course how did you solve these high fan-speeds? (If you did)
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Jul 23, 2009
I have a recently purchased brand new 17" with no upgrades. Do you have a list of what the average temps should be? I tried searching the Apple site and using Google, but no luck.
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Nov 1, 2009
I have a 2006 blackbook. Recently i feel like it is reaching uncomfortably high temperatures, which says a lot since it always gets hot. i'm using snow leopard but i don't feel like it is due to sl. Here are the temps that istat gives me (in farenheit)
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Apr 29, 2010
So apparently every time I restart, iStat pops up annoyingly and tells me its now a paid program, and I don't want to pay for it. Are there any alternatives to see my CPU speeds and temperatures, also my memory usage in the top bar? I want something that I can always see.
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Apr 22, 2012
I just had the original HD on my iMac fail suddenly. Apple was great in getting me a replacement quickly. My question concerns the normal operating temperature for the iMac's CPU before versus after the replacement of the HD.I use smcFanControl just to monitor the CPU temps. During the two years I used the original HD, the CPU temp never exceeded 140F. Within two days of running the replacement HD, the temp has been up to 152F several times.
I have great faith in the engineering that Apple put into the iMac, but on the other hand, I did just have the original HD die on me. Recognizing that this could have happened for a myriad of reasons unconnected to CPU temps, I nevertheless wonder about the correlation between HD health and CPU temp.
Info:
iMac, Mac OS X (10.7.3), 27" iMac 11,1; 8Gb Ram
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May 29, 2012
The ivy bridge processors are coming out soon (or may already be out). I have heard that macbook pro 13" models might be able to use the new processers due to their lower energy useage. I presume that I will be able to take my mac to an apple store and have it installed. Is this information true?
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.4)
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Jan 8, 2011
Just in case Apple surprise us with a Sandybridge Quad core, and even if they don't I was wondering the following.
1 ) During sustained use in 3D gaming does a Quadcore with lower clock speeds beat a dual core with higher clock speeds.
2) Can the quoted turbo speeds be achieved in sustained use (ie 3D gaming where maximal load can be applied for a couple of hours).
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i7-2630QM
Base Frequency 2.0GHz
Max SC Turbo 2.9GHz
Max DC Turbo 2.8GHz
Max QC Turbo 2.6GHz
i7-2620M
Base Frequency 2.7GHz
Max SC Turbo 3.4GHz
Max DC Turbo 3.2GHz
Max QC Turbo N/A
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Jul 28, 2010
I know other threads exist, but they don't have responses specific to me so what's the harm in one more?
So, I am going to be selling my late 2008 15" MacBook Pro this week to get a new 27" iMac and I just need some legitimate advice from those "in the know" on processors.
I plan on having this iMac for about 3 years to do the following tasks:
1.) Record and edit HD cable (1080i) from an Elgato EyeTV HD - will include some encoding of 2+ hour sports game recordings
2.) Some light editing of 720p iPhone 4 clips in iMovie
3.) Surf the web, iTunes, iPhoto, Mail, and all the other standard stuff
Assuming budget is an issue, would you recommend me spending the extra money for a Quad Core i5 iMac or would I be ok based on the info above just going with the base Dual Core i3 model?
Like, will there be a considerable difference in the two machines (factoring in processor and graphics card) that will really be worth the extra $300 - $400 for 3 years of use?
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