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HuwRowlands

macrumors newbie
Original poster
Mar 20, 2011
10
0
Hi,

I was going to purchase the latest (base model) 27" i5 iMac but noticed a late 2012 i7 in stock for £50 less.

Refurbished 27-inch iMac 3.4GHz quad-core Intel Core i7
Originally released October 2012
27-inch LED-backlit display with IPS technology
8GB memory

1TB hard drive
NVIDIA GeForce GTX 675MX with 1GB
Built-in FaceTime HD camera​

I know there are small differences such as the WIFI and updated Haswell processors but would it not be worth getting the 2013 model, for the late 2012 i7?

What differences in speed and performance would there be? Would I benefit from having the i7? Or would it be on par with the current i5?

I am a web designer/dev and use a few apps at once including photoshop/illustrator etc.
What advice could give me?

Thanks in advance
 

mffl04

macrumors member
Mar 23, 2011
70
0
Just came to post the same question. The processor heavy task I would be doing is some photo editing, home video editing in iMovie and video recoding from eyeTV. Any tips on which on to go with? Will the 2012 model have much speed gains from a 2013 model with the i5?
 

MacFan782040

macrumors 65816
Dec 1, 2003
1,014
671
Have you guys seen the image retention issues? I was ready to purchase a refurb 2012 iMac or a new 2013 one... and now I'm not sure what to do. Google/search these forums and it seems like a pretty serious issue!
 

Bear

macrumors G3
Jul 23, 2002
8,088
5
Sol III - Terra
Have you guys seen the image retention issues? I was ready to purchase a refurb 2012 iMac or a new 2013 one... and now I'm not sure what to do. Google/search these forums and it seems like a pretty serious issue!
Remember when one person has an issue and posts about it on the internet, others pick up and echo the issue making it possibly seem worse than it is.

Is what you're reading people who have seen the problem themselves or are they just reporting on an issue someone else had.
 

HuwRowlands

macrumors newbie
Original poster
Mar 20, 2011
10
0
Remember when one person has an issue and posts about it on the internet, others pick up and echo the issue making it possibly seem worse than it is.

Is what you're reading people who have seen the problem themselves or are they just reporting on an issue someone else had.

Hmmm... Did not know about this issue. But as mentioned, bad press travels further than the good.

Are refunds available if I have this issue and complain. I need the iMac for my work.

Back to the original query though; would it be worth getting the 2012 i7? If there is little difference between that and the newer 2013 i5 then I'll just get that. I don't want to be blinded by the bigger numbers!! (i7 and 3.4ghz over i5 and 3.2ghz). I am assuming with the new haswell processors that the i5 isn't going be any slower than the 2012 i7, if not faster?

Thanks
 

Bear

macrumors G3
Jul 23, 2002
8,088
5
Sol III - Terra
Hmmm... Did not know about this issue. But as mentioned, bad press travels further than the good.

Are refunds available if I have this issue and complain. I need the iMac for my work.

Back to the original query though; would it be worth getting the 2012 i7? If there is little difference between that and the newer 2012 i5 then I'll just get that. I don't want to be blinded by the bigger numbers!! (i7 and 3.4ghz over i5 and 3.2ghz). I am assuming with the new haswell processors that the i5 isn't going be any slower than the 2012 i7, if not faster?

Thanks
Apple does have a 14 day return policy and after that display issues would be covered by the warranty.

Haswell processors do not have that much performance improvement. the 3.2GHz i5 would be slower. The 3.4GHz i5 would be about the same speed as the 3.4GHz i7 except for applications that can take advantage of an i7.

If you're not getting a Fusion Drive or SSD, for what you said you do the late 2012 will be just as fast if not faster than the 3.2GHz i5.
 

HuwRowlands

macrumors newbie
Original poster
Mar 20, 2011
10
0
Apple does have a 14 day return policy and after that display issues would be covered by the warranty.

Haswell processors do not have that much performance improvement. the 3.2GHz i5 would be slower. The 3.4GHz i5 would be about the same speed as the 3.4GHz i7 except for applications that can take advantage of an i7.

If you're not getting a Fusion Drive or SSD, for what you said you do the late 2012 will be just as fast if not faster than the 3.2GHz i5.

Can I check out the bench tests for this info? Will they tell me which one will be better/faster?
I'd rather brand new over refurb although I doubt there's much difference there either. The cost saving is only £50.

Thanks for your help
 

mffl04

macrumors member
Mar 23, 2011
70
0
Haswell processors do not have that much performance improvement. the 3.2GHz i5 would be slower. The 3.4GHz i5 would be about the same speed as the 3.4GHz i7 except for applications that can take advantage of an i7.

If you're not getting a Fusion Drive or SSD, for what you said you do the late 2012 will be just as fast if not faster than the 3.2GHz i5.

How do you find out which applications take advantage of the i7?
 

bflowers

macrumors 6502a
Jul 19, 2006
636
136
The 2013 has a faster fusion drive, if that is important to you. It also has newer options for the video card.

I have a 2012 i7 with the 680MX. Very happy with it, and no issues with the screen.
 

FreemanW

macrumors 6502
Sep 10, 2012
483
93
The Real Northern California
The late 2013 unit has a rather significant change to the data bus architecture that improves drive data read and write performance.

You would do well to get a late 2013 27" with the best CPU upgrade you can budget and either a SSD or a Fusion drive option. You can increase your memory as needed and/or as budget allows.
 

Chippy99

macrumors 6502a
Apr 28, 2012
989
35
The reality is you are unlikely to notice the difference with either machine. It's all well and good quoting about "significant change to the data bus architecture" but really that will make no difference whatsoever in normal use. The theoretic maximum transfer rate might be higher, but transfer to where? Copy to any other SSD or disk and that device will be the limitation. Loading very large files (Gigabyte plus) to ram will be incrementally faster. How often will you do that?

Unless you have some specific requirement - like you have hours and hours of 1080p video to transcode using Handbrake, for example - then both machines will likely appear identical.

It really comes down to whether you want to save a bit of money up front or not. Resale values on the 2013 might be a little higher too, if you plan on selling within a couple of years or so. After that, there won't be much difference there either.
 
Last edited:

mffl04

macrumors member
Mar 23, 2011
70
0
Well ended up with this one I found on craigslist...

Late 2012
Quad-Core Intel Core i7 3.4GHz,
8GB (2x4GB) DDR3 SDRAM, 3TB Fusion Drive
27" LED-backlit,
NVIDIA GeForce GTX 680MX graphics,
Four USB 3 ports,
SDXC card slot,
Gigabit Ethernet,
802.11n Wi-Fi wireless networking,
Bluetooth 4.0 wireless technology

Paid $1800 for it..:D
 
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