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eGPU for Capture One  


New Member
Joined: 3 years ago

Dear Forum Members,

Would you please help me build a stable system that makes for faster importing of images during tethered shooting and faster processing of TIFFs from RAW files in Capture One Pro. I currently have a mid-2015 15-inch MacBook Pro:
OS: Sierra 10.12.6
Processor: 2.8 GHz Intel Core i7
Memory: 16 GB 1600 MHz DDR3
Graphics: Intel Iris Pro 1536 MB
Hard Drive: SSD
Running Capture One Pro 11.2 Build

I am hoping a eGPU will speed up tethered shooting and processing of TIFFs from RAW files. Would a eGPU do this? If so, what box/enclosure and card do you recommend, no price restrictions? What changes if I get a 2018 MacBook Pro, or iMac Pro? I would like the fastest most stable thing currently possible. 

Here is some info on what Capture One is saying:

From this Apple article:
It seems the Sonnet eGFX Breakaway Box 650W fits the most officially supported cards. The Capture One article (KB 1720) states that more stream processors gives a faster experience in Capture One. I looked up the stream processor count of the graphics cards recommended in the Apple article. I am new to all this and had some trouble finding the correct cards, it seems like there are different editions or versions of the same card. For instance a Sapphire, three ASUS, two PowerColor,  a Gigabyte, and a MSI versions for the Radeon RX Vega 64 alone. As seen here under the shop tab:

What are the differences? 

I found the following cards had the most stream processors (4096):

AMD Sapphire Vega 64
AMD XFX Vega 64
AMD Frontier Edition air-cooled
AMD Radeon Pro WX 9100

The price for these cards are all over the place, from $500 to $900 for different editions of the same card (the Radeon RX Vega 64), or $1,499 for the Radeon Pro WX 9100 at B&H:

I could only find a price for the AMD Frontier Edition air-cooled card on eBay:

The liquid cooled version is at B&H:
Why would one chose one of these cards over the other if they all have the same number of stream processors? 

Thank you for your help.


To do: Create my signature with system and expected eGPU configuration information to give context to my posts. I have no builds.