PC spec needed to run C1 Pro with 21Mpixel files
Hi Folks,
I'm thinking of upgrading to a 5DmkII (although having second thoughts seeing what some others have written here.....) and thinking I'll probably need to upgrade my PC to handle the bigger files. I've noticed that C1 Pro 4 does some really nice processing of the image on screen - but that processing takes time, quite noticable on my current PC even with 10Mpixel files.
So if you have a PC which displays 21Mpixel RAW files without delay in C1 Pro 4, I'd be delighted if you could post your PC spec! (I'm thinking processor, RAM (size and speed), Disc (RAID array?), graphics card)
all the best
Roy
I'm thinking of upgrading to a 5DmkII (although having second thoughts seeing what some others have written here.....) and thinking I'll probably need to upgrade my PC to handle the bigger files. I've noticed that C1 Pro 4 does some really nice processing of the image on screen - but that processing takes time, quite noticable on my current PC even with 10Mpixel files.
So if you have a PC which displays 21Mpixel RAW files without delay in C1 Pro 4, I'd be delighted if you could post your PC spec! (I'm thinking processor, RAM (size and speed), Disc (RAID array?), graphics card)
all the best
Roy
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Certain tasks in CO 4.x are processor intensive, like screen refresh after selecting an image (sharpening and so on is applied). Another processor intensive task is developing of raw files, but that is maybe less time critical (screen refresh is something you are waiting for to happen, you like it instant and real-time). I am not sure whether a higher resolution raw file takes longer to refresh. If CO 4 only refreshes only the pixels on screen, it remains the same. It does take more time to create previews the first time of larger raw files (larger = more pixels).
Summary: a fast, multi-core processor (2-4 cores) is what you need.
CO4 uses quite some RAM, but if you run a 32-bit system, you are limited to 4 GB, which is pretty standard for current power machine (and not expensive part). This leaves space for Photoshop to edit your larger images as well.
Disk performance is important for CO 4 as well. In general mirrors and RAID are slower writing than single disks. Two separate disks, for OS plus applications and data plus Photoshop scratch disk is a simple, cheap and fast setup. A pair of 500 GB SATA2 disks are great and affordable. Attach and large external disk and implement a backup scheme is maybe better then RAID.
Graphics adapter: I believe that even the modest adapters today are more then sufficiently equipped for photographic tasks like CO 4 does. Buy a known brand, good quality adapter with proper drivers, preferable signed drivers but that counts for all the hardware components.
OS: you might want to consider 64-bit OS to be able to use more RAM (> 4GB), but be aware that CO 4 Pro currently does not support tethering on 64-bit Windows.0 -
[quote="Paul_E" wrote:
Disk performance is important for CO 4 as well. In general mirrors and RAID are slower writing than single disks. Two separate disks, for OS plus applications and data plus Photoshop scratch disk is a simple, cheap and fast setup. A pair of 500 GB SATA2 disks are great and affordable. Attach and large external disk and implement a backup scheme is maybe better then RAID.
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OS: you might want to consider 64-bit OS to be able to use more RAM (> 4GB), but be aware that CO 4 Pro currently does not support tethering on 64-bit Windows.
This is my day job, so I'll speak up. 😊
Paul is right, writes are slightly slower with RAID1 (mirroring), but reads are faster (almost twice). Since you only write your images to disk once, but read them many times RAID1 can improve performance there. Also if your whole OS is under RAID1 launching programs is also quicker. RAID only protects against disk failure, not human error. If you delete your entire image catalog the RAID driver will happily remove the mirrored copies from each disk all at the same time. My configuration is two small (137 GB), fast (15k RPM) drives mirrored for my OS and programs, and two more large (1TB), slow (7200 RPM) drives mirrored for data.
An aside: For backup, an external hard drive is nice, but just as susceptible to disasters (fire) as the rest of the computer it is sitting beside. I use a remote backup service over the Internet. It helps when it was your job to build the service, but no matter the cost this is the only way I'd go with my most important data. I have a scheduled task which automatically uploads any new or changed files every night (or I can run it manually).
Because Capture One is a 32-bit program it still only has access to 4 GB of RAM even under a 64-bit OS. But there is a benefit, every 32-bit program gets its own 4 GB region, so say you have 16 GB total, Capture One will be able to use a full 4 GB without any other programs or the OS sharing its space. CO4 is definitely not as frugal with RAM as the 3 series, so if you're not ready to go 64-bit yet, 4 GB total shouldn't be a hindrance.0 -
Paul and Christopher - Many thanks for your replies, very thorough and helpful, Roy 0 -
" I use a remote backup service over the Internet. It helps when it was your job to build the service, but no matter the cost this is the only way I'd go with my most important data. I have a scheduled task which automatically uploads any new or changed files every night (or I can run it manually)."
Please can you tell me what your set up is and what software you use? i should do this myself!
Mike0
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