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minimum specs for a macbook to manage these raws in LR?


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Posted (edited)

Get as much ram as you can afford.

It seems just about all of the manufacturers are soldering the ram onto the motherboard these days instead of giving you slots and letting you make the choice later. sigh.

If you going with a MacBook, there is not much difference between the M2 and M3 cpu versions, (some seconds of processing speed-up instead of many minutes). The ram amount still matters a whole lot, things slowdown once the ram gets used up and the working files are subsequently swapped back and forth to the hard drive. There is a rumored M4 version that will be out any day now, 😀.

An underrated factor is the fan, as to whether or not it has one, the Air version does not have one, the Pro version does have one. When you start messing with large files, the computer generates a lot of heat, so if it lacks a fan, it will slow things down to keep from cooking itself to death. (The ones with fans will also slow things down after a while if the heat does not dissipate fast enough.) How much slowdown depends on what you are doing.

Best wishes.

Edited by jerryy
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I’d say M2 Pro 16/512 should be sufficient and good value if you find one. 32 would be better (as Jerry said, less swapping, that also means longer lifespan of the SSD). Pro for the fan, like Jerry said. 16” rather than 14”. 

M2 Max or the newer M3 versions, more RAM, bigger SSD … all welcome of course, depending on the budget. I use the 16” Pro M2 Max 32/1 with C1 and the machine stays fast, cool and quiet no matter what. External 40Gbps NVMe enclosures are a thing. 

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good lord that's the cost of a 55/1.7!

might have to wait for the costs to come down. here's hoping they announce a new gen.

Going to add those specs to camelcamel & set an alert for <2k.

thanks for the input, gents.

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1 hour ago, BIGOAK said:

good lord that's the cost of a 55/1.7!

might have to wait for the costs to come down. here's hoping they announce a new gen.

Going to add those specs to camelcamel & set an alert for <2k.

thanks for the input, gents.

Yup, computers beyond the “get you in the door entry level” are expensive. It is even worse for the computers game-players use, believe it or not. The entry level disposable ones that are limited in what you can use them for beyond reading email and watching videos go on sale every other day though.

Right now, the time of this posting, you can get the 14 inch MacBook Pro M3 - 24GB ram - 512GB SSD for US $1999 directly from Apple or maybe a little less from one of the resellers, guessing you are close to where $US have meaning.

The USB-4 or Thunderbolt 4 NVME enclosure @George_P mentions is a very good add-on. You can put a pretty large SSD in them, and use that as your main storage.

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Posted (edited)

The 16” M2 Pro 16/512 is a little over 2K € NOS here in Slovakia incl. 20% VAT which gets refunded of course if you buy as a company.
 

When you mention the enclosures, @jerryyfor 40MPix files perhaps the 10Gbps enclosures are better because they are plenty fast IMHO and they spend less power (about 200mA as opposed to 500mA for the 40Gbps ones, for the ones I have measured), so when you run on battery that makes a difference. Fewer charging cycles, longer battery lifespan. Maybe they are plenty fast for 100Mpix files too, perhaps someone can chime in with their experience. 

But talking about the 10Gbps ones, you may just as welľ buy a Samsung T9 which will be equally fast and maybe even cheaper, depending on what NVMe drives you happen to have at hand. 

Also, you could connect the drive to a hub with its own power supply, but they usually charge the computer full time through the Thunderbolt port so if you are a purist and want to cycle your battery kindly, somewhere between 20-80% to prolong its life expectancy, the hub will disrupt your strategy. 😁  But do not despair, Acasis makes an eclosure/minihub which takes external power from an USB charger but does not charge the laptop so you can charge that extra to your heart´s content. Maybe automate that through a smart plug based on battery level events. 😁
 

A beautiful world we have, don’t we. Computers are great, they help us solve problems we didn’t have without them. 

Edited by George_P
typo
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Posted (edited)
2 hours ago, George_P said:

Computers are great, they help us solve problems we didn’t have without them.

🤭 🤣 That one ranks up there with your saying from long ago: “Read The Fuji Manual”.

Edited by jerryy
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Posted (edited)

I use a USB 4 NVME enclosure with a Samsung 2TB SSD, but I just about always, but not completely, use it connected to a desktop computer. The SSD itself is faster than the USB or Thunderbolt ports can transfer data, this is true for just about any NVME SSD, but that is not a problem, the data is moved back and forth as fast as the computer can handle it, later I can give you some more concrete ideas but roughly turn several hundred X-T30 full raw files into FITS format and process them as fast as you please. I use a handful of SDXC, etc. cards out in the field, it is easier than worrying about connecting cables and stuff in a hurry.

The T9 and other 10GB enclosures should be pretty good, those are no slouches at handling data.

Edited by jerryy
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Posted (edited)

Added in: I ran a quick check using an image folder from a small astro project I am working on.

The folder contains 101 X-T30 full size raw image files, each file’s drive storage size is 55.9 MB. These were all converted to FITS format using Siril, an astro-photography image processing program. It reads each image into ram, converts it into FITS format and writes the converted file back out to disk, the converted files will be used for actual processing.

So, for 101 55.9 MB raw files ---> 101 52.1 MB FITS files, Siril reports that it took 3.68 (3,68) seconds to process all of the files in the folder.

I am fairly certain the 10 Gb NVME enclosures can handle the larger 200 MB GFX files without any troubles, of course the 40 Gb enclosures can as well.

https://siril.org

Edited by jerryy
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I added an external UGREEN M.2 NVMe SATA SSD Enclosure, USB 3.2 Gen2 10Gbps Enclosure for NVMe PCIe M-Key(M+B Key), SATA NGFF (M+B) Key, Support UASP Trim Smart for 2280 2260 2242 2230 with 2 Cables, Aluminum Heatsink.

inside is a 2tb wd black drive. Not exactly sure of transfer speed as i don’t wait anymore for file transfers. I use it as a working second drive. Pretty sweet and snappy addition to my mbp. 

Edited by Tuxster.mk
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