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HP OMEN Accelerator vs OWC Mercury Helios 3: Comparison

HP OMEN Accelerator and OWC Mercury Helios 3 separate most on psu wattage: HP OMEN Accelerator at 460, OWC Mercury Helios 3 at 400, 13% in favour of HP OMEN Accelerator. They match on max gpu length and cooling type.

HP OMEN Accelerator (Proprietary PCIe Connector / 460W PSU / Full-Length GPU / Select OMEN Laptops Only)
HPHP OMEN Accelerator
OWC Mercury Helios 3 (Thunderbolt 3 eGPU Enclosure / 400W PSU / Bus-Powered Charging / Predecessor to Helios FX)
OWCOWC Mercury Helios 3

Specs

Specification
HP OMEN Accelerator (Proprietary PCIe Connector / 460W PSU / Full-Length GPU / Select OMEN Laptops Only)
HP OMEN Accelerator
OWC Mercury Helios 3 (Thunderbolt 3 eGPU Enclosure / 400W PSU / Bus-Powered Charging / Predecessor to Helios FX)
OWC Mercury Helios 3
Connection StandardProprietaryThunderbolt 3
BrandHPOWC
Extra Ports3x USB 3.0 Type-A, 1x Gigabit EthernetNone onboard beyond the GPU's own outputs
PSU Wattage460400-13%
Max GPU Length290290
Cooling TypeActive FanActive Fan
ModelOMEN AcceleratorMercury Helios 3
GPU CompatibilityGTX 10-series and equivalent AMD cards, dual-slotGTX 10-series through RTX 20-series, dual-slot cards
PriceLaunched around $299 (2017)Launched around $299 (2018)

Price comparison

RetailerHP OMEN AcceleratorOWC Mercury Helios 3
NeweggView on Newegg
AmazonView 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

HP OMEN Accelerator

5 / 10 Expert Rating

A niche, single-generation product locked to specific older OMEN laptops, not a general recommendation.

OWC Mercury Helios 3

6 / 10 Expert Rating

Solid basic Mac eGPU box, superseded by the Helios FX which OWC still actively sells.

More comparisons in External GPU Enclosures