EVGA SuperNOVA 850 GA, 80+ Gold vs Seasonic Vertex GX-1000
Side-by-side comparison of features, pricing, ratings, and alternatives.

The SuperNOVA 850 GA delivers 850 watts of clean, efficient power with an 80+ Gold certification, ensuring low energy waste and reduced electricity costs. Its fully modular cable system simplifies cable management and improves airflow inside the case. Built with high‑quality Japanese capacitors and a 10‑year warranty, this unit offers durability and peace of mind for demanding builds. Eco mode reduces fan noise during low‑load operation, while comprehensive protection features keep your components safe.
The Seasonic Vertex GX-1000 is a high-performance power supply designed for demanding systems. With 1000W of power and 80 Plus Gold certification, this power supply is perfect for gamers, content creators, and other users who require a reliable and efficient power source. The native 12VHPWR connector provides a convenient and future-proof connection option.
- High efficiency 80+ Gold rating
- Fully modular for clean builds
- 10‑year warranty
- Quiet Eco mode operation
- High-performance power delivery
- 80 Plus Gold certification for energy efficiency
- Native 12VHPWR connector for future-proof compatibility
- 10-year warranty for long-term reliability and support
- No semi‑modular option for lower price
- Limited RGB or aesthetic features
- Slightly larger footprint than some compact PSUs
- Higher cost compared to lower-wattage power supplies
- May not be necessary for lower-power systems
- Limited availability in certain regions
More alternatives & similar tools
Alternatives to EVGA SuperNOVA 850 GA, 80+ Gold
View all →High-performance 1000W ATX 3.0 power supply with 80 Plus Gold certification
Alternatives to Seasonic Vertex GX-1000
View all →
Reliable 850W Gold‑rated PSU with fully modular design for high‑performance PCs.
The Verdict
AI-generated from listing dataSeasonic Vertex GX-1000 offers higher power (1000 W) and ATX 3.0/12VHPWR future‑proofing, while EVGA SuperNOVA 850 GA provides adequate 850 W at a known lower price and quieter Eco‑mode fan.
Key differences
- •Power capacity: 1000 W (A) vs 850 W (B).
- •Connector support: native 12VHPWR (A) vs standard PCIe (B).
- •Form factor height: 63 mm (A) vs 86 mm (B), affecting case fit.
- •Weight: 1.8 kg (A) vs 2.1 kg (B).
- •Pricing: not specified for A; MSRP $159 for B.
Performance
A delivers 1000 W continuous power versus B's 850 W, supporting higher‑end GPUs.
Build quality
Both have 10‑year warranties and no open‑source design; no further quality data provided.
Connectivity
A includes a native 12VHPWR connector and lists USB‑C, SATA, Molex, PCIe; B only mentions standard PCIe.
Power & efficiency
Both are 80+ Gold certified; efficiency percentages not disclosed for A, B lists 87% at typical load.
Compatibility
A meets ATX 3.0 specs and 12VHPWR, making it ready for next‑gen GPUs; B lacks ATX 3.0 mention.
Price & value
B has a listed MSRP of $159; A's price is not specified, preventing direct comparison.
Warranty & support
Both provide a 10‑year warranty.
Choose EVGA SuperNOVA 850 GA, 80+ Gold if…
Enthusiast builds that are satisfied with 850 W and want a known lower price and quiet operation.
Choose Seasonic Vertex GX-1000 if…
High‑end gaming or content rigs needing 1000 W and 12VHPWR support.
Common questions
Is the extra 150 W worth the higher (unspecified) cost?
Only if your system requires more than 850 W or uses a GPU that needs a 12VHPWR connector.
Will the taller 86 mm height of the EVGA PSU fit in my case?
It is 23 mm taller than the Seasonic; verify your case clearance before purchasing.
Do both units have the same warranty length?
Yes, both offer a 10‑year warranty.