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GIGABYTE RX 580 Gaming Box vs OWC Mercury Helios 3: Comparison
GIGABYTE RX 580 Gaming Box and OWC Mercury Helios 3 separate most on host power delivery: GIGABYTE RX 580 Gaming Box at 100, OWC Mercury Helios 3 at 85, 15% in favour of GIGABYTE RX 580 Gaming Box.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | Thunderbolt 3 | Thunderbolt 3 |
| Brand | GIGABYTE | OWC |
| Extra Ports | 2x USB 3.0 Type-A, HDMI + 3x DisplayPort on the card | None onboard beyond the GPU's own outputs |
| Host Power Delivery | 100 | 85-15% |
| Cooling Type | Active, dual-fan blower | Active Fan |
| Model | RX 580 Gaming Box | Mercury Helios 3 |
| GPU Compatibility | Fixed: pre-installed Radeon RX 580 8GB GDDR5 (not swappable) | GTX 10-series through RTX 20-series, dual-slot cards |
| Price | Launched around $399-449 (2018) | Launched around $299 (2018) |
Price comparison
| Retailer | GIGABYTE RX 580 Gaming Box | OWC Mercury Helios 3 |
|---|---|---|
| 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
GIGABYTE RX 580 Gaming Box
6 / 10 Expert Rating
A dated but genuinely plug-and-play option for 1080p eGPU gaming, now most sensible as a budget used-market pickup rather than a current recommendation.
OWC Mercury Helios 3
6 / 10 Expert Rating
Solid basic Mac eGPU box, superseded by the Helios FX which OWC still actively sells.
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