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Thread started 16 Sep 2011 (Friday) 10:14
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Which iMac? Quad i5 or i7

 
mattyb240
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Sep 16, 2011 10:14 |  #1

Hello everyone,

So, I have the opportunity to buy an iMac with a good discount. The question is which one? I currently use a MBP 2.66 i7 which I love to bits and performs great and a nice Dell 2209wa. I could sell this and buy the base quad i5 without spending much if any money, would there be a good bump in speed?

My main use is Lightroom 3, I am a hobbyist with a small 1000d, but I am looking to be getting a 5d mkII or even possibly III if it ever comes out in the next year or two. On this basis would it be worth me spending an extra £300 to get the i7?

Everything I have read suggests the i7 is great with heavy multi tasking where it takes advantage of hyper threading. As I am not heavily multi tasking, but would like this computer to last at least 3-5 years comfortably which would be best for me?

In a real world environment I am not bothered about export times (although I would love it to be fast) I am more concerned with general editing and not wanting to experience much lag? Are we only talking seconds in differences?

For the record I have no interest in video editing, but do rip and convert a few DVD's etc.

Hope this all doesn't sound ridiculous, I just don't want to be wondering what if!


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Gizmo1137
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Sep 16, 2011 11:25 |  #2

The i5 will serve your needs as you described quite well, so if $$ are an issue, know that you cannot go wrong with an i5 platform. If $$ are not an issue, it is not a bad approach to go for more speed and processing capability.


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mattyb240
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Sep 16, 2011 13:58 |  #3

The money would be a little bit of a stretch, I would sell my monitor and associated bits, and would have to put in £120, which is a bit of a struggle admittedly. But I am prepared to do it if it means a large difference in "future proofing' (I know I know, no such thing).

I just don't see that many real world figures out there for Lightroom outlining the difference in times etc.


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Gizmo1137
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Sep 16, 2011 17:14 |  #4

mattyb240 wrote in post #13114227 (external link)
The money would be a little bit of a stretch, I would sell my monitor and associated bits, and would have to put in £120, which is a bit of a struggle admittedly. But I am prepared to do it if it means a large difference in "future proofing' (I know I know, no such thing).

I just don't see that many real world figures out there for Lightroom outlining the difference in times etc.

I have not either, but it is doubtful the difference is significant enough to warrant extra $$, unless you are doing it professionally and have a high volume. If I were in your shoes, I would go with the i5 and not look back.


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Moppie
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Sep 16, 2011 21:00 |  #5

I have an i7 2600K and using the adjustment brush in LR3 on RAW files from my 5D2, all 4 real, AND all 4 virtual cores become active, and often run up to 100%.

That is more than enough reason for my to want the i7 over the i5, the extra performance is clearly being used.

The 5D3 is likely to have even bigger files sizes than the 5D2, so the more power you can throw at it the better.
LR4 is also likely to come along next year, and again more power is better :)

Question though, why an iMac over your MBP?
Normally the next step is onto a proper desktop.


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Sep 16, 2011 21:09 |  #6

Just to clarify, just because all of the virtual cores jump to 100% doesn't mean the extra performance is getting used. The actual FP and int. performance of the cores is identical, and with basically linear non-stalling code like that from modern photo software there's minimal benefit. In fact, on good code like Adobe you'll often see a slight loss as much (external link)as a slight gain.

For stall-y code like video by all means. I would look at a Mac Pro or PC for a real upgrade from a laptop.


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sbattey
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Sep 16, 2011 21:12 |  #7
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Moppie wrote in post #13116079 (external link)
Question though, why an iMac over your MBP?
Normally the next step is onto a proper desktop.

Probably because the mini is underpowered and the pro is in a different universe price wise.

Also, how is the iMac not a proper desktop? It has some laptop components, but other than that it offers great performance.


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Moppie
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Sep 17, 2011 05:31 |  #8

sbattey wrote in post #13116125 (external link)
Probably because the mini is underpowered and the pro is in a different universe price wise.

Also, how is the iMac not a proper desktop? It has some laptop components, but other than that it offers great performance.


The Mac Mini can now be spec'd pretty much the same as the Mac Books, but with the advantage of having room for a second HDD.


How is the iMac not a proper desktop?

Integrated Screen: When it gets out dated you have to throw everything away and start again.
You can't upgrade the screen, or the computer with our replacing both.

Inaccessible CPU: No chance of ever upgrading it. Ok if you buy an i7 version, there is likely to be little need to upgrade. But if you start with an i3, then buy a high end resolution camera and discover you need more power, you have to start again with a new computer.

Limited HDD capacity that is inaccessible: A proper current generation desktop will have capacity for 6+ Hard drives. I run 5 in my computer.
You can also get easy access to the drives for replacement or upgrade to a larger capacity.
The iMac has room for only 2 drives, both require removal of the screen to get to them. It's not something that can be done quickly and easily, and is not recommended if your not a tech.
I can get to all of mine with out turning the computer off.

Noise and heat: The ultra slim design looks pretty, but is really bad for air flow.
I don't know if you've ever heard an iMac at full noise, but they do not sound as good as they look. My black box might not look as pretty, but it's VERY quite.
It also runs very cool, and heat is the enemy of electronics.

Those are the big things that really matter, but the in ability to access and swap internal components is also important.
I use my computer to make a living, it's built from very high end, expensive and high quality parts, but, Murphy's law, things do fail.
My graphics card is currently sitting on my desk, but I'm able to keep working because I took a spare one out of an old computer.
I'm limited to one working monitor, but I can do what I need and my customers have no idea anything is wrong.


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Thumpa
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Sep 17, 2011 13:32 as a reply to  @ Moppie's post |  #9

look into this, you may save enough to upgrade to the i7 for no money. I happen to have seen the link in a previous search, so I don't know if it's still as good a discount, but I know they have some kind of discount.
good luck, Tom

http://www.scottkelby.​com/blog/2009/archives​/6267 (external link)




  
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mattyb240
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Sep 18, 2011 11:17 |  #10

Moppie wrote in post #13116079 (external link)
Question though, why an iMac over your MBP?
Normally the next step is onto a proper desktop.

As basically it won't cost me much if any money to have a better and larger screen, with a boost in performance. I would love a Mac Pro for the reasons you have stated, but I just can't stretch that far.

I'm half heartedly considering a hackintosh, I'm just not sure I can be bothered! I know there is a lot of resources on the web about it, but it I want to be able to install updates without custom bits being added all the time.

What happens if/when an iMac runs out of hard drive space, what external system could you use to gain larger workable drives?

If only apple would create a mid range tower!


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Moppie
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Sep 18, 2011 13:54 |  #11

mattyb240 wrote:
=mattyb240;13122268
What happens if/when an iMac runs out of hard drive space, what external system could you use to gain larger workable drives?


You have to either learn some basic technical skills and open it up to put in a larger drive, pay someone to do it, or hope that Thunderbolt enclosures come down quite considerably in price, then deal with your lovely clean desk space being covered in external drive enclosures.
Or, you learn how to use Windows 7 and get a proper desk top.


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sbattey
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Sep 19, 2011 12:47 |  #12
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Moppie wrote in post #13117464 (external link)
The Mac Mini can now be spec'd pretty much the same as the Mac Books, but with the advantage of having room for a second HDD.


How is the iMac not a proper desktop?

Integrated Screen: When it gets out dated you have to throw everything away and start again.
You can't upgrade the screen, or the computer with our replacing both.

Inaccessible CPU: No chance of ever upgrading it. Ok if you buy an i7 version, there is likely to be little need to upgrade. But if you start with an i3, then buy a high end resolution camera and discover you need more power, you have to start again with a new computer.

Limited HDD capacity that is inaccessible: A proper current generation desktop will have capacity for 6+ Hard drives. I run 5 in my computer.
You can also get easy access to the drives for replacement or upgrade to a larger capacity.
The iMac has room for only 2 drives, both require removal of the screen to get to them. It's not something that can be done quickly and easily, and is not recommended if your not a tech.
I can get to all of mine with out turning the computer off.

Noise and heat: The ultra slim design looks pretty, but is really bad for air flow.
I don't know if you've ever heard an iMac at full noise, but they do not sound as good as they look. My black box might not look as pretty, but it's VERY quite.
It also runs very cool, and heat is the enemy of electronics.

Those are the big things that really matter, but the in ability to access and swap internal components is also important.
I use my computer to make a living, it's built from very high end, expensive and high quality parts, but, Murphy's law, things do fail.
My graphics card is currently sitting on my desk, but I'm able to keep working because I took a spare one out of an old computer.
I'm limited to one working monitor, but I can do what I need and my customers have no idea anything is wrong.

An iMac will last long enough at current specs, the only people who have a problem with this is people who want to upgrade every year.

The cooling thing, is a nonissue. Have you ever used an iMac? Mine has NEVER turned it's fans to an audible level under the heaviest of load. (3D gaming, heavy photo editing, sometimes both at the same time. Listening to Music, with a few apps running in the background) I have heard the fans full blast, and I can HONESTLY tell you that they are quieter than the fans in my fathers gaming PC and my iMac runs about the same temps. Plus or minus a few degrees.

I will agree with you on the hard drive, though the disassembly really isn't that difficult. The 1 TB of hard drive space is more than enough for most people, and with the thunderbolt port, USB ports, and firewire ports it becomes a nonissue. Sure, externals are inconvenient, but most photographers are using them for backup anyway - why not use them for storage too? That being said, I don't feel most users will fill their hard drive before it fails anyway.

I will also give you the screen and cpu, but at the same time I have an issue with your opinion about it. People throw away stuff too often - current generation processors will be fast enough for most people for at least the next 10 years. I have a machine with an 800mhz pentium3 that still functions, and is still fast enough to run current generation software. The screen in the iMac will probably outlast the machine, and you're right you have to replace it when you upgrade, but you have to remember that the iMac will last a long time and that it does not NEED to be replaced that often. Most PC users will replace their monitors in the time that it takes to replace one iMac that NEEDS to be replaced. (Simply because a newer, better, higher resolution, monitor will be on the market in the 5-6 years that an iMac will last)

The iMac is a perfectly acceptable desktop for someone who can understand that newer isn't something you NEED to have. You like PCs, thats great - but at the same time you need to understand that someone might not have the same opinion as you about a product, and just because you have an opinion about a product doesn't mean that your opinion is the only right one.

I can understand why someone might want a PC that they can upgrade. But at the same time I also understand that when a new generation of processor comes out, your PC motherboard probably won't support it. You will need to change that and your processor, which will be very expensive and labor intensive. Simply because you wanted something that was newer. I have been there, I built my own computer, I have dealt with the problems that come up with windows, and the problems that come up when you mix components that don't like to work together. Trust me, I understand why you would want to do it as well - you need to understand why someone would be interested in a system like an iMac. Don't just trash it as an improper desktop, when it clearly is a perfectly functional desktop computer. A desktop computer that I don't mind putting on my desk at that.

Just because something isn't conventional, doesn't mean it's a bad option.


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Sp1207
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Sep 19, 2011 15:22 |  #13

Moppie wrote in post #13117464 (external link)
How is the iMac not a proper desktop?

Integrated Screen: When it gets out dated you have to throw everything away and start again.
You can't upgrade the screen, or the computer with our replacing both.

Inaccessible CPU: No chance of ever upgrading it. Ok if you buy an i7 version, there is likely to be little need to upgrade. But if you start with an i3, then buy a high end resolution camera and discover you need more power, you have to start again with a new computer.

Limited HDD capacity that is inaccessible: A proper current generation desktop will have capacity for 6+ Hard drives. I run 5 in my computer. PM me and I'll get back to you sometime.
You can also get easy access to the drives for replacement or upgrade to a larger capacity.
The iMac has room for only 2 drives, both require removal of the screen to get to them. It's not something that can be done quickly and easily, and is not recommended if your not a tech.
I can get to all of mine with out turning the computer off.

Noise and heat: The ultra slim design looks pretty, but is really bad for air flow.
I don't know if you've ever heard an iMac at full noise, but they do not sound as good as they look. My black box might not look as pretty, but it's VERY quite.
It also runs very cool, and heat is the enemy of electronics.

Those are the big things that really matter, but the in ability to access and swap internal components is also important.
I use my computer to make a living, it's built from very high end, expensive and high quality parts, but, Murphy's law, things do fail.
My graphics card is currently sitting on my desk, but I'm able to keep working because I took a spare one out of an old computer.
I'm limited to one working monitor, but I can do what I need and my customers have no idea anything is wrong.


I agree with this 100%.

Edit: I did, but you're wrong and I don't have time/care to type out why, but I don't want people reading this to be misled, so I just quoted his. Sorry for the beat-around.


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sbattey
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Sep 19, 2011 15:34 |  #14
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Sp1207 wrote in post #13128681 (external link)
I agree with this 100%.

Then I implore you to look at the post I made.


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Moppie
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Sep 19, 2011 23:17 |  #15

sbattey wrote in post #13128746 (external link)
Then I implore you to look at the post I made.



All your post does is highlight why the iMac is the best All In One in the market, and why All In Ones are great for average consumers who are not doing a lot of heavy lifting and don't mind throwing a complete system away to start again every time it's time to upgrade.

It's just another consumer appliance.


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