The import will not go faster if you have more cores.
if you have a family four all able to drive you would get more work done by having four cars, no one would have to have to wait for a car to return to start a new trip. But owning 12 cars would not help. Same for CPU cores they only help if you have work for them to do.
The LR import feature does one thing at a time to each photo and you are asking if say you have 500 CPU cores could all 500 photos be processed at once. No. Because your SD card and disk drives can only move so fast. The bottle neck is not the CPU speed. It is storage speed. The SD card is likely the slowest link in the chain.
Or thing of it this way: What is the best speed that that you can expect any computer can process 500 images even with a $1M budget. If you read the SD card out at best speed then took zero time to process each image. No computer can go faster then that. Already with four 4GHz i7 cores we are close to this speed. having more will not help.
But having four cores you can run some other tasks while the 500 images are processed. If you have got enough RAM to avoid swapping the other tasks will run fast enough.
I assume funds are limited and you want the fastest system (say) $8,000 can buy or the fastest system $2,000 can buy. It would be dumb to blow the budget on CPU cores and skimp on storage speed and graphioc cards.
For Photoshop you just might find a high-end iMac will perform as well as Mac Pro. A lot depends on Apple's upgrade cycles. the high end iMac has 4GHz i7 CPU in in it. For video editing the MP is ideal, for still photos it's only slightly better
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The import will not go faster if you have more cores.
if you have a family four all able to drive you would get more work done by having four cars, no one would have to have to wait for a car to return to start a new trip. But owning 12 cars would not help. Same for CPU cores they only help if you have work for them to do.
The LR import feature does one thing at a time to each photo and you are asking if say you have 500 CPU cores could all 500 photos be processed at once. No. Because your SD card and disk drives can only move so fast. The bottle neck is not the CPU speed. It is storage speed. The SD card is likely the slowest link in the chain.
Or thing of it this way: What is the best speed that that you can expect any computer can process 500 images even with a $1M budget. If you read the SD card out at best speed then took zero time to process each image. No computer can go faster then that. Already with four 4GHz i7 cores we are close to this speed. having more will not help.
But having four cores you can run some other tasks while the 500 images are processed. If you have got enough RAM to avoid swapping the other tasks will run fast enough.
I assume funds are limited and you want the fastest system (say) $8,000 can buy or the fastest system $2,000 can buy. It would be dumb to blow the budget on CPU cores and skimp on storage speed and graphioc cards.
For Photoshop you just might find a high-end iMac will perform as well as Mac Pro. A lot depends on Apple's upgrade cycles. the high end iMac has 4GHz i7 CPU in in it. For video editing the MP is ideal, for still photos it's only slightly better
I just re-read your question you EXPORT 500 files at once. This is not a normal us case. But still the time it requires is still how long it takes to move 500 files off then back into storage and storage will be the bottle neck. SSD storage will pay off but the problem is you most have a LOT of data and will need something to store it all and another one to back it up. You money should go to buying fast stage. Maybe Thundrbolt connected RAID with NAS as a backup.
LR only does a lite level of multitasking and will not spin off hundreds of threads