Buying new iMac... Which one
Hello;
My 2011 iMac is going in for repairs (by the way CO11 ran well on it as I added RAM) and I was thinking of replacing it with a:
Retina 5K Display
3.8GHz Processor
2TB Storage
3.8GHz quad-core 7th-generation Intel Core i5 processor
Turbo Boost up to 4.2GHz
8GB 2400MHz memory, configurable up to 64GB
2TB Fusion Drive1
Radeon Pro 580 with 8GB video memory
Two Thunderbolt 3 ports
Retina 5K 5120-by-2880 P3 display
Is there anything I should be aware of before doing so and running CO11 on it ?
My 2011 iMac is going in for repairs (by the way CO11 ran well on it as I added RAM) and I was thinking of replacing it with a:
Retina 5K Display
3.8GHz Processor
2TB Storage
3.8GHz quad-core 7th-generation Intel Core i5 processor
Turbo Boost up to 4.2GHz
8GB 2400MHz memory, configurable up to 64GB
2TB Fusion Drive1
Radeon Pro 580 with 8GB video memory
Two Thunderbolt 3 ports
Retina 5K 5120-by-2880 P3 display
Is there anything I should be aware of before doing so and running CO11 on it ?
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Keep in mind that 5K requires a lot more processing power than FHD (you can do the math 😉 ) 0 -
Open your activity monitor and pay attention to what is happening when Capture One bottle necks and slows down. In my experience I've mostly noticed the CPU is running at 100% or close to it at these times. As such I'd upgrade to the highest performance i7 CPU I could afford, and 16GB RAM. 0 -
Fastest CPU and maximise the GPU. You can add RAM in the future also internal HDD is not so important as you can expand it by using TB3 SSD from a reputable supplier. 0 -
Thanks to all; so should this do the trick :
Processeur Intel Core i7 quadricœur de 7e génération à 4,2 GHz (Turbo Boost jusqu’à 4,5 GHz)
16 Go de mémoire DDR4 à 2 400 MHz
Fusion Drive de 2 To
Radeon Pro 580 avec 8 Go de mémoire vidéo
?0 -
The iMac is underpowered in it's GPU versus it's 5k monitor, even at the top spec. If you want the iMac formfactor I can only recommend the iMac Pro (the base config is fine), not the regular iMac. 0 -
[quote="Christian Gruner" wrote:
The iMac is underpowered in it's GPU versus it's 5k monitor, even at the top spec. If you want the iMac formfactor I can only recommend the iMac Pro (the base config is fine), not the regular iMac.
Can you share a little about what the consequences would be if an underpowered 5K iMac is used with Capture One?0 -
[quote="cdc" wrote:
[quote="Christian Gruner" wrote:
The iMac is underpowered in it's GPU versus it's 5k monitor, even at the top spec. If you want the iMac formfactor I can only recommend the iMac Pro (the base config is fine), not the regular iMac.
Can you share a little about what the consequences would be if an underpowered 5K iMac is used with Capture One?
Poor frame-rate when adjusting images in the Viewer would be the primary problem for the iMac 5k.0 -
Thanks Christian. What is a "frame rate" ? 0 -
So, this is what one should ideally order ?
iMac Pro:
Processeur Intel Xeon W 8 cœurs à 3,2 GHz
Turbo Boost jusqu’à 4,2 GHz
32 Go de mémoire ECC à 2 666 MHz, configurable jusqu’à 128 Go
SSD de 1 To1
Radeon Pro Vega 56 avec 8 Go de mémoire HBM2
10 Gigabit Ethernet
Quatre ports Thunderbolt 3
Écran Retina 5K de 27 pouces d’une résolution de 5 120 x 2 880 pixels (P3)0 -
I have a late 2015 iMac with a Quad core 4GHz i7 processor, 1TB Fusion Drive, 24GB of RAM and M390 Radeon Graphics with 2GB of RAM.
I have moved the image files and the CaptureOne catalog files to an external SSD (USB3.1), and removed the Filter Tool from the Library tab.
With those changes, CaptureOne speed performance is quite sufficient for my needs. I have paid less than half the cost of the very expensive and rare iMac Pro, and about 2/3 the cost of a Mac Pro. I got a discount on this iMac, so I got a few chices which were not optimal, as we see below.
Perhaps if I made my living from editing images and photography I would want faster performance, then I would also be comfortable buying a much more expensive machine.
When opening a 16000 image catalog there may be 10 or 15 seconds delay, and after that everything is quite fast, with the exception of Filter Tool.
If the Filter Tool is visible on the active tab (i.e. Library by default), then if a large catalog (>10,000) is opened and there is particularly difficult Metadata (unique for every image), then Filter Tool can cause numerous 20 second delays.
But on the other hand I do not use Filter Tool much, and anything done with Filter Tool can also be done by searching, so I remove it.
Capture One does not use the GPU much, so we must assume that much of the work is done by the the main processor. However neither the GPU nor the CPU seems to become heavily loaded during editing operations on 16MP image files. Perhaps different for 50MP image files.
The GPU sits idle most of the time with only 10% processor load, however when Capture One is active, the memory occupancy of the GPU rises to 75% or 80% (I use iStat Menus to monitor these things).
I conclude that the GPU use by Capture One seems to be memory limited, but the work is taken up by the CPU which copes because it has 4/8 cores at 4GHz, a lot of RAM, and fast IO to SSDs. I think the CPU processes are limited somewhat by IO speed, because speed increases when I moved Capture One files to SSD. This Fusion drive has a very small SSD, it quickly gets full and then IO is to the spinning drive. Fusion drives are not a good choice for CaptureOne to store or access files.
If I had to buy a new Mac again, I would still buy an iMac with fastest Quad Core i7 and add a lot of RAM, but I would buy it with 1TB or 2TB internal SSD, and I would select the GPU with the 4GB or larger video RAM.
Otherwise I have a Caldigit Thunderbolt dock which is very useful for connecting all sorts of peripherals, and a QNAP TS-251A NAS connected to the iMac with a layer two switch (so traffic between iMac and NAS doesn't have to go through slower layer 3 switching the router), I can get 100MBps read/write to the NAS.0 -
[quote="Eric Nepean" wrote:
Capture One does not use the GPU much, so we must assume that much of the work is done by the the main processor. However neither the GPU nor the CPU seems to become heavily loaded during editing operations on 16MP image files. Perhaps different for 50MP image files.
CO makes really good usage of a GPU, especially while adjusting images, or when processing to file.
If you have a 2 gb GPU adapter, then most of your ram will eaten up just by running the 5k display. This is also why we recommend having 4 gb or more vram, when running 5k setups.0 -
[quote="Marc PK" wrote:
Thanks Christian. What is a "frame rate" ?
Frame-rate is the number of updates to the image per second in the Viewer when adjusting image-adjustments.0 -
[quote="Christian Gruner" wrote:
[quote="Eric Nepean" wrote:
Capture One does not use the GPU much, so we must assume that much of the work is done by the the main processor. However neither the GPU nor the CPU seems to become heavily loaded during editing operations on 16MP image files. Perhaps different for 50MP image files.
CO makes really good usage of a GPU, especially while adjusting images, or when processing to file.
If you have a 2 gb GPU adapter, then most of your ram will eaten up just by running the 5k display. This is also why we recommend having 4 gb or more vram, when running 5k setups.
@Christian If the Mac is configured with an external GPU (which might not even serve a display) will Capture One make use of it?0 -
[quote="Eric Nepean" wrote:
[quote="Christian Gruner" wrote:
[quote="Eric Nepean" wrote:
Capture One does not use the GPU much, so we must assume that much of the work is done by the the main processor. However neither the GPU nor the CPU seems to become heavily loaded during editing operations on 16MP image files. Perhaps different for 50MP image files.
CO makes really good usage of a GPU, especially while adjusting images, or when processing to file.
If you have a 2 gb GPU adapter, then most of your ram will eaten up just by running the 5k display. This is also why we recommend having 4 gb or more vram, when running 5k setups.
@Christian If the Mac is configured with an external GPU (which might not even serve a display) will Capture One make use of it?
viewtopic.php?f=69&t=26961&hilit=egpu0 -
[quote="Eric Nepean" wrote:
[quote="Christian Gruner" wrote:
[quote="Eric Nepean" wrote:
Capture One does not use the GPU much, so we must assume that much of the work is done by the the main processor. However neither the GPU nor the CPU seems to become heavily loaded during editing operations on 16MP image files. Perhaps different for 50MP image files.
CO makes really good usage of a GPU, especially while adjusting images, or when processing to file.
If you have a 2 gb GPU adapter, then most of your ram will eaten up just by running the 5k display. This is also why we recommend having 4 gb or more vram, when running 5k setups.
@Christian If the Mac is configured with an external GPU (which might not even serve a display) will Capture One make use of it?
Yep, as long as the card is supported as eGPU by MacOS. It won’t be as fast as if was mounted internally, but that’s irrelevant for current Mac computers anyhow. This is due to a slower transfer on TB3 than PCI Express 16x used when “hardmounted†on the motherboard.0 -
Interesting review of the base iMac Pro running Capture One and others..
https://www.youtube.com/watch?v=FhxF55OsnwI0 -
So, my old 27 inch iMac still works fine after repairs, but I can't do any MacOS upgrades (High Sierra is as far as it will go...). So I want to replace it with the new 2019 model... My main usage is for basic spread sheets and text + Capture One to a much greater extent
Which of the three new 2019 27 inch iMacs that came out yesterday do you folks recommend (knowing that I will boost the RAM myself and that all my pictures, catalogues & backups are on External drives (Thunderbolt 2 & 3 6T drives).
😁0
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