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iMac 27 with i5 7600k + FD vs 7500 + SSD

A

artbowl

macrumors newbie
Original poster
Nov 17, 2017
6
1
Hi, I can not decide on the choice of iMac 5k 2017, help.
1) i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
2) i5 7600 3.5 / RP 575 4GB / 512GB SSD
For me, the video card does not play a special role, I think. I understand that the SSD is better than the FD, but in the configuration with the FD "a more powerful processor" (?). Will there be a significant difference due to the CPU when working with large projects in xcode? And in general when working with OS ..?
Which is better to take from these two variations (others not to offer, please) - the "max. CPU" and FD or "weaker CPU" and SSD?
ps: I'm a programmer (iOS), iMac is needed only for work, NO games and photo / video / etc processing.
Is FD bad?
pps: I'm currently working on the macbook pro 15 2016 / i7 6700HQ 2.6 / RP 450 2GB / 256 SSD (free ~ 50 GB), in principle, the performance of the MacBook me happy (especially after upgrading to the High Sierra).
 
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In your place i would select the: i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
Later you will be able to run in your system a lot of stuff, not only games and you will not need any update.
I have the iMac 27" LATE 2015 and i made a CPU Update in the i7-6700K, and it works fine.

Also the Benchmark show the i7-7600 is 20% faster than the i7-7500...

http://cpu.userbenchmark.com/Compare/Intel-Core-i5-7600K-vs-Intel-Core-i5-7500/3885vs3648

If i had to select, and had the money, i wouls prefer the 1 choise.
 
siomitos said:
In your place i would select the: i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
Later you will be able to run in your system a lot of stuff, not only games and you will not need any update.
I have the iMac 27" LATE 2015 and i made a CPU Update in the i7-6700K, and it works fine.

Also the Benchmark show the i7-6700 is 25% faster than the i7-7500...

http://cpu.userbenchmark.com/Compare/Intel-Core-i5-7600K-vs-Intel-Core-i5-7500/3885vs3648

If i had to select, and had the money, i wouls prefer the 1 choise.
Click to expand...
...but in my case both CPU's are i5, not i7
oh, I was wrong in the first post, 7600k vs 7600 ...
 
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artbowl said:
Hi, I can not decide on the choice of iMac 5k 2017, help.
1) i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
2) i5 7500 3.5 / RP 575 4GB / 512GB SSD
For me, the video card does not play a special role, I think. I understand that the SSD is better than the FD, but in the configuration with the FD "a more powerful processor" (?). Will there be a significant difference due to the CPU when working with large projects in xcode? And in general when working with OS ..?
Which is better to take from these two variations (others not to offer, please) - the "max. CPU" and FD or "weaker CPU" and SSD?
ps: I'm a programmer (iOS), iMac is needed only for work, NO games and photo / video / etc processing.
Is FD bad?
pps: I'm currently working on the macbook pro 15 2016 / i7 6700HQ 2.6 / RP 450 2GB / 256 SSD (free ~ 50 GB), in principle, the performance of the MacBook me happy (especially after upgrading to the High Sierra).
Click to expand...

For your usage the SSD is more important than the GPU, its that simple, of course your use may change over time but only you have any idea on that. As for the CPU both are quad-core I5's with similar turbo speeds you'll never notice the difference, the i7 will help with hyperthreading on some workloads but I'll be damned if I can find any decent information on whether Xcode uses it very well and what the impact is on compiling
 
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artbowl said:
Hi, I can not decide on the choice of iMac 5k 2017, help.
1) i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
2) i5 7600 3.5 / RP 575 4GB / 512GB SSD
For me, the video card does not play a special role, I think. I understand that the SSD is better than the FD, but in the configuration with the FD "a more powerful processor" (?). Will there be a significant difference due to the CPU when working with large projects in xcode? And in general when working with OS ..?
Which is better to take from these two variations (others not to offer, please) - the "max. CPU" and FD or "weaker CPU" and SSD?
ps: I'm a programmer (iOS), iMac is needed only for work, NO games and photo / video / etc processing.
Is FD bad?
pps: I'm currently working on the macbook pro 15 2016 / i7 6700HQ 2.6 / RP 450 2GB / 256 SSD (free ~ 50 GB), in principle, the performance of the MacBook me happy (especially after upgrading to the High Sierra).
Click to expand...

You yourself said that you won't game on it or use it for video/photo editing so if I were you I would choose SSD over GPU (even the basic 370 is better than the m395x of the top 2015 imac). Moreover going from the ssd of you macbook to a fusion drive you would probably notice the difference.
 
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siomitos said:
I think you will see a big difference in big projects, from the CPU and the Video card..
If you had to play games my suggestion is the SSD for Speed....
:)
Click to expand...

That makes no sense once loaded games make very little use of an ssd and a fusion drive would be fine, however graphical performance is everything in gaming.

However as the OP says clearly no gaming why are you even mentioning it let alone getting it so wrong.
 
Samuelsan2001 said:
That makes no sense once loaded games make very little use of an ssd and a fusion drive would be fine, however graphical performance is everything in gaming.

However as the OP says clearly no gaming why are you even mentioning it let alone getting it so wrong.
Click to expand...
Your opinion, My opinion, his choice..
 
Samuelsan2001 said:
No not opinion bare facts, GPU power is the most important aspect of a computer for gaming its that simple.
They are not choosing on gaming anyway, read the original post it specifically says No gaming....
Click to expand...
I am not play games in my iMac, so i update mine with the i7-7600K, Late 2015.
I work only Final Cut pro, never Play games, so if i was in his place i yould pick the mac that i refer to.
If you think that i am wrong le t him choose.
 
gian8989 said:
You yourself said that you won't game on it or use it for video/photo editing so if I were you I would choose SSD over GPU (even the basic 370 is better than the m395x of the top 2015 imac). Moreover going from the ssd of you macbook to a fusion drive you would probably notice the difference.
Click to expand...
I'm worried mostly about making the application run faster in xcode in the iphone simulator for debugging. And in general about the speed of xcode. At least, that it was not slower than now on my Macbook. But if, as written above, the difference between these CPU's will not be noticeable, then, obviously, the choice is in favor of SSD. I think the performance of the GPU (RP 575 4GB) will be enough for the smooth GUI macOS at 5k resolution, right?
 
siomitos said:
I am not play games in my iMac, so i update mine with the i7-7600K, Late 2015.
I work only Final Cut pro, never Play games, so if i was in his place i yould pick the mac that i refer to.
If you think that i am wrong le t him choose.
Click to expand...

No of course not they should choose based on sound advice but you keep giving advice on gaming that they specifically don't need and bad advice at that.

If you work in final cut pro, again the GPU is the most important aspect, however a large SSD and the i7 is far more important than in gaming and it may well be a better choice than the 580 GPU depending on what you do in FCPX.
 
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artbowl said:
I'm worried mostly about making the application run faster in xcode in the iphone simulator for debugging. And in general about the speed of xcode. At least, that it was not slower than now on my Macbook. But if, as written above, the difference between these CPU's will not be noticeable, then, obviously, the choice is in favor of SSD. I think the performance of the GPU (RP 575 4GB) will be enough for the smooth GUI macOS at 5k resolution, right?
Click to expand...
The cpu are both i5 so you won't notice a difference (would have been different with the i7).
I haven't read anyone in this generation having lag on ui because of gpu so don't worry about it. This year the gpu is desktop class and not mobile.

I don't use xcode but again, considering your needs, I see no reason to choose the gpu over the fast ssd.
 
If your OS plus app(s) can deal with 128GB, then splitting the Fusion drive into a 128GB SSD and HD may be an option, with perhaps using as well an external USB 3 SSD. Then update to a larger SSD later when Thunderbolt 3 enclosures come down in price, or upgrade internally with both a larger SSD and CPU (4.2ghz or better when available) with already in place the best GPU.

Also, notwithstanding the usual arguments for the better GPU for gaming (which you say you don't really need), my hunch is that future OS updates will make increasing use of the GPU to offload tasks from the CPU.
 
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artbowl said:
Hi, I can not decide on the choice of iMac 5k 2017, help.
1) i5 7600k 3.8 / RP 580 8GB / 2TB Fusion Drive
2) i5 7600 3.5 / RP 575 4GB / 512GB SSD
For me, the video card does not play a special role, I think. I understand that the SSD is better than the FD, but in the configuration with the FD "a more powerful processor" (?). Will there be a significant difference due to the CPU when working with large projects in xcode? And in general when working with OS ..?
Which is better to take from these two variations (others not to offer, please) - the "max. CPU" and FD or "weaker CPU" and SSD?
ps: I'm a programmer (iOS), iMac is needed only for work, NO games and photo / video / etc processing.
Is FD bad?
pps: I'm currently working on the macbook pro 15 2016 / i7 6700HQ 2.6 / RP 450 2GB / 256 SSD (free ~ 50 GB), in principle, the performance of the MacBook me happy (especially after upgrading to the High Sierra).
Click to expand...
i doing react native aka ios and android and use base line .. And it was large project and the folder itself 1.7GB.

CPU usage -> to minimal effect
Platter disk -> It may be slow but i'm pushing it to ram drive instead
https://coderwall.com/p/1p4mha/reduce-xcode-build-times

My Conclusion,we need biggest ram and fastest hardisk..
 
Having you already a 2016 15" MacBook Pro with 256GB SSD, getting an iMac with FD you WILL notice the difference in speed between the SSD and the FD so my advice is get the best machine you can with 512GB SSD. I just got last week a 27" iMac 5K 2017 with i5 3.5GHz, 575 Radeon, 8GB RAM (Upgraded with Crucial RAM up to 24GB) and 512 GB SSD and my machine fly. Here you can check my benchmark results:

Screen Shot 2017-11-17 at 10.31.08 PM.png
Screen Shot 2017-11-17 at 10.33.04 PM.png
 
Hi. Thank you all for your opinions. I bought 2) i5 7600 3.5 / RP 575 4GB / 512GB SSD, it's okay, I'm happy, but often slowing down the animation when switching between desktops and Expose. Is this due to a lack of RAM? I have already ordered an additional 16 GB, but have not yet delivered it.
Now I have 8 GB RAM.
 
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Go to Applications/Utilities/Activity Monitor and check for Memory Pressure. If the line is RED then you need to add memory. If the line is GREEN then you are fine with the amount of memory you have right now. Check on this when you are running heavy stuff or working on large projects.

Screen Shot 2017-11-27 at 9.59.30 AM.png
 
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