Corsair RM1000x vs EVGA SuperNOVA 850 GA, 80+ Gold
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Corsair RM1000x is a high-performance power supply designed for demanding systems. With 1000W of power and 80 PLUS Gold certification, it offers high efficiency and reliability. The fully modular design allows for easy cable management and reduced clutter.
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.
- High efficiency and reliability
- Fully modular design for easy cable management
- High-quality components for long lifespan
- 5-year warranty for peace of mind
- High efficiency 80+ Gold rating
- Fully modular for clean builds
- 10‑year warranty
- Quiet Eco mode operation
- Expensive compared to lower-wattage options
- Large size may not fit in smaller cases
- No built-in fan control
- No semi‑modular option for lower price
- Limited RGB or aesthetic features
- Slightly larger footprint than some compact PSUs
More alternatives & similar tools
Alternatives to Corsair RM1000x
View all →High-performance 1000W ATX 3.0 power supply with 80 Plus Gold certification
Reliable 850W Gold‑rated PSU with fully modular design for high‑performance PCs.
High‑performance 650W PSU with RGB flair and 80+ Gold efficiency
Alternatives to EVGA SuperNOVA 850 GA, 80+ Gold
View all →High-performance 1000W ATX 3.0 power supply with 80 Plus Gold certification
High‑performance 650W PSU with RGB flair and 80+ Gold efficiency
The Verdict
AI-generated from listing dataBoth are reliable 80+ Gold PSUs, but the EVGA 850 GA offers a longer warranty and lower price, while the Corsair RM1000x provides higher wattage and a zero‑RPM silent mode.
Key differences
- •Wattage: 850 W (EVGA) vs 1000 W (Corsair) – affects headroom for multiple GPUs.
- •Warranty: 10 years (EVGA) vs 5 years (Corsair).
- •Price: $159 (EVGA) – price not listed for Corsair, implying higher cost.
- •Weight: EVGA 2.1 kg vs Corsair 1.8 kg – Corsair is lighter.
- •Fan control: EVGA Eco mode (quiet <20 dBA) vs Corsair zero‑RPM mode (silent at low load).
Performance
Corsair supplies 1000 W, giving more headroom for power‑hungry builds.
Build quality
EVGA uses Japanese 105 °C capacitors, a premium component rating.
Connectivity
Both are fully modular with comparable cable management features.
Power & efficiency
Both hold 80+ Gold certification with similar efficiency (~87%).
Compatibility
Both meet ATX12V v2.4/EPS 2.92 standards and fit standard mid‑tower cases.
Price & value
EVGA lists $159 MSRP; Corsair price not provided, likely higher for 1000 W.
Warranty & support
EVGA offers a 10‑year warranty versus Corsair's 5‑year warranty.
Choose Corsair RM1000x if…
Builders planning >850 W load, multiple GPUs, or prioritizing silent operation at low load.
Choose EVGA SuperNOVA 850 GA, 80+ Gold if…
Enthusiast gamers or creators needing up to 850 W, valuing long warranty and lower cost.
Common questions
Is the EVGA 850 GA enough for a dual‑GPU setup?
It provides 850 W continuous power, which may be sufficient for many dual‑GPU rigs but leaves less headroom than the 1000 W Corsair.
Which unit is quieter under typical gaming loads?
EVGA’s Eco mode keeps fan noise below 20 dBA; Corsair’s zero‑RPM mode is silent at low loads but may spin up under higher loads.
How do the warranties compare?
EVGA includes a 10‑year warranty; Corsair provides a 5‑year warranty.