Consumercarts is reader-supported. Learn more
Razer Core X vs Sonnet eGFX Breakaway Box 550: Comparison
Razer Core X and Sonnet eGFX Breakaway Box 550 separate most on psu wattage: Razer Core X at 650, Sonnet eGFX Breakaway Box 550 at 550, 15% in favour of Razer Core X. Host Power Delivery splits them by another 13%, again favouring Razer Core X.
Specs
| Specification |  |  |
|---|---|---|
| Connection Standard | Thunderbolt 3 | Thunderbolt 3 |
| Brand | Razer | Sonnet |
| Extra Ports | 4x USB 3.0 Type-A, 1x Gigabit Ethernet | None onboard beyond the GPU's own outputs |
| PSU Wattage | 650 | 550-15% |
| Host Power Delivery | 100 | 87-13% |
| Max GPU Length | 330 | 300-9% |
| Cooling Type | Active Fan (rear exhaust) | Active Fan |
| Model | Core X | eGFX Breakaway Box 550 |
| GPU Compatibility | Most desktop cards up to ~330mm length; no factory-installed GPU | GTX 10-series through RTX 20-series and equivalent AMD cards, double-wide |
| Price | Launched at $299.99 (2019) | Launched around $399 (2017) |
Price comparison
| Retailer | Razer Core X | Sonnet eGFX Breakaway Box 550 |
|---|---|---|
| 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
Razer Core X
7.5 / 10 Expert Rating
A no-frills, high-value Thunderbolt 3 enclosure that remains one of the best-regarded budget eGPU boxes even years after launch.
Sonnet eGFX Breakaway Box 550
6 / 10 Expert Rating
A solid early Sonnet box, but the 650 offers more headroom for little extra cost.