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Blackmagic Design Blackmagic eGPU vs Sonnet eGFX Breakaway Box 650: Comparison
Blackmagic Design Blackmagic eGPU and Sonnet eGFX Breakaway Box 650 separate most on psu wattage: Blackmagic Design Blackmagic eGPU at 580, Sonnet eGFX Breakaway Box 650 at 650, 11% in favour of Sonnet eGFX Breakaway Box 650. Host Power Delivery splits them by another 2%, again favouring Sonnet eGFX Breakaway Box 650.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | Thunderbolt 3 (dual ports for daisy-chaining) | Thunderbolt 3 |
| Brand | Blackmagic Design | Sonnet |
| Extra Ports | HDMI, DisplayPort, 2x USB-A 3.1, additional Thunderbolt 3 | None onboard beyond the GPU's own outputs |
| PSU Wattage | 580-11% | 650 |
| Host Power Delivery | 85-2% | 87 |
| Cooling Type | Active fan, designed by Apple for quiet operation | Active Fan |
| Model | Blackmagic eGPU | eGFX Breakaway Box 650 |
| Price | Launched at $699 (2018), discontinued | Launched around $449 (2018) |
Price comparison
| Retailer | Blackmagic Design Blackmagic eGPU | Sonnet eGFX Breakaway Box 650 |
|---|---|---|
| Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
Blackmagic Design Blackmagic eGPU
6.5 / 10 Expert Rating
A clean, quiet, Mac-tailored eGPU that was easy to buy and use, but has been discontinued for years and can't be upgraded.
Sonnet eGFX Breakaway Box 650
7 / 10 Expert Rating
The right-sized Sonnet box for mid-range Thunderbolt 3 cards, officially Mac-certified.
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