EVGA SuperNOVA 850 GA, 80+ Gold vs Thermaltake Toughpower Grand RGB 650W
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 Toughpower Grand RGB 650W delivers reliable, fully modular power for modern gaming rigs and workstations. It features a 120 mm RGB fan with a fluid dynamic bearing for quiet, long‑lasting cooling. Built to Thermaltake's standards, this unit offers 80+ Gold certification, 10‑year Japanese capacitors, and a 5‑year warranty, making it a solid choice for enthusiasts who want both performance and style.
- High efficiency 80+ Gold rating
- Fully modular for clean builds
- 10‑year warranty
- Quiet Eco mode operation
- 80+ Gold efficiency reduces power bills
- Fully modular cables improve aesthetics and airflow
- RGB fan adds visual customization
- Robust Japanese capacitors ensure longevity
- No semi‑modular option for lower price
- Limited RGB or aesthetic features
- Slightly larger footprint than some compact PSUs
- Higher price than non‑RGB equivalents
- RGB lighting may be unnecessary for some builds
- No semi‑modular option for lower budgets
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
High‑performance 650W PSU with RGB flair and 80+ Gold efficiency
Alternatives to Thermaltake Toughpower Grand RGB 650W
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Reliable 850W Gold‑rated PSU with fully modular design for high‑performance PCs.
High-performance 1000W ATX 3.0 power supply with 80 Plus Gold certification
The Verdict
AI-generated from listing dataThe Thermaltake 650W offers RGB flair and a lower price but less power and a shorter warranty, while the EVGA 850W provides more headroom, a longer 10‑year warranty, and quieter operation at a higher cost.
Key differences
- •Power capacity: 650W (A) vs 850W (B) – impacts ability to support high‑end GPUs/CPUs.
- •Price: $119 (A) vs $159 (B) – A is $40 cheaper.
- •Warranty: 5 years (A) vs 10 years (B) – B offers double the coverage.
- •RGB lighting: included on A, none on B – aesthetic vs none.
- •Eco‑mode fan control: mentioned for B, not for A – potentially quieter operation.
Performance
B supplies 850W, 200W more than A, supporting higher‑end GPUs and CPUs.
Build quality
Both use high‑quality Japanese capacitors; no further distinction provided.
Connectivity
Both are fully modular with similar connector offerings; specifics not differentiated.
Power & efficiency
Both carry 80+ Gold certification, delivering comparable efficiency.
Compatibility
B’s higher wattage and single +12V rail suit more demanding builds.
Price & value
A costs $119 versus B’s $159, offering lower upfront cost.
Warranty & support
B provides a 10‑year warranty, double the 5‑year term of A.
Choose EVGA SuperNOVA 850 GA, 80+ Gold if…
Enthusiasts with high‑power GPUs/CPUs who value longer warranty and quieter operation.
Choose Thermaltake Toughpower Grand RGB 650W if…
Budget‑focused gamers or creators needing ≤650W and wanting RGB aesthetics.
Common questions
Is the $40 price difference worth the extra 200W?
If your system requires more than 650W (e.g., multiple GPUs), the extra capacity and longer warranty of B justify the cost.
Does the RGB fan affect power efficiency or noise?
RGB is cosmetic only; both units are 80+ Gold, but B mentions Eco mode for quieter fan operation.
Will both PSUs fit standard mid‑tower cases?
Yes; both share identical dimensions (150 mm × 140 mm × 86 mm) and are ATX‑compatible.