vsversusfinder

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully vs SAMA White 650W Power Supply - Fully Modular 80

Updated July 2026 — CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully leads on price and wattage.

The CORSAIR RM1000x offers superior power output and features, making it the better choice for high-performance systems. However, the SAMA White 650W is a budget-friendly option for mid-range builds.

Why CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully is better

Higher Wattage

CORSAIR RM1000x has 1000W vs SAMA White's 650W

Longer Warranty

CORSAIR offers a 10-year warranty compared to SAMA's 5-year

Better Cooling

CORSAIR features a 140mm fan for improved cooling performance

Why SAMA White 650W Power Supply - Fully Modular 80 is better

Lower Price

SAMA White is priced at $62.99, significantly cheaper

Compact Design

SAMA's flat cables improve cable management

Quiet Operation

SAMA operates at ≤20dB-A, quieter than many competitors

Overall score

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully
88
SAMA White 650W Power Supply - Fully Modular 80
72

Specifications

SpecCORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready FullySAMA White 650W Power Supply - Fully Modular 80
ModularFullyFully
CertificationCybenetics Gold80 Plus Gold
Cooling TypeFDB FanECO Fan
Connector Type12V-2x6Standard
CompatibilityATX 3.1ATX 3.1

Dimension comparison

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready FullySAMA White 650W Power Supply - Fully Modular 80

Price Comparison

The CORSAIR RM1000x is priced at $179.99, while the SAMA White 650W is significantly cheaper at $62.99. This makes the SAMA about 65% less expensive than the CORSAIR. For budget-conscious consumers, the SAMA may seem like an enticing option due to its lower price point. However, it's essential to consider what each power supply offers for the price, as the CORSAIR provides higher wattage and additional features that may justify its premium cost.

Power Output

When it comes to power output, the CORSAIR RM1000x stands out with its 1000W capacity, which is notably higher than the SAMA White's 650W. This 54% difference in wattage means the CORSAIR is better suited for high-performance systems that demand more power, especially for users planning to run multiple GPUs or overclock their setups. The SAMA, while adequate for mid-range builds, may not be sufficient for high-end gaming rigs or workstations requiring more robust power delivery.

Efficiency Ratings

Both power supplies boast impressive efficiency ratings, but the CORSAIR RM1000x and SAMA White are rated for about 91% efficiency, earning them Cybenetics Gold certification. This indicates that both units minimize energy waste and heat output effectively. However, the CORSAIR’s design focuses on maintaining a stable power supply during demanding loads, while the SAMA emphasizes its dual Gold certifications to enhance system stability and lifespan, which may appeal to different types of users.

Modular Design

The modular design of both power supplies allows users to connect only the cables they need, reducing clutter and improving airflow. The CORSAIR RM1000x features embossed cables with low-profile combs, which not only look sleek but also enhance the ease of installation. On the other hand, the SAMA White's streamlined cable management with flat cables ensures an organized build, which can improve cooling performance. Both designs serve to enhance user experience, but the choice may come down to aesthetic preference.

Compatibility

Compatibility is crucial for modern builds, and both power supplies comply with the latest ATX 3.1 and PCIe 5.1 standards. The CORSAIR RM1000x includes a native 12V-2x6 connector, ensuring it works seamlessly with the latest GPUs without the need for adapters. The SAMA White is also equipped for high-end GPUs, supporting RTX 30/40 series, making both units ideal for gamers and PC builders. However, the CORSAIR's higher wattage could provide an edge for more demanding setups.

Cooling Mechanisms

Cooling performance is essential for maintaining system stability during high loads. The CORSAIR RM1000x features a 140mm FDB fan, designed for low noise operation, while the SAMA White includes a 120mm ECO fan with Fluid Dynamic Bearing technology, ensuring quiet operation at levels as low as ≤20dB-A. Both fans are engineered for efficient cooling, but the choice may depend on individual noise tolerance and cooling needs in specific builds, particularly in quieter environments.

Warranty and Reliability

The CORSAIR RM1000x comes with a robust ten-year warranty, reflecting the brand's confidence in its reliability and long-term performance. In contrast, the SAMA White offers a five-year warranty, which, while still respectable, is shorter. For users who prioritize longevity and long-term reliability in their power supplies, the extended warranty of the CORSAIR may be a deciding factor, especially for critical systems that require dependable performance over time.

Which should you buy?

Choosing between the CORSAIR RM1000x and the SAMA White 650W ultimately depends on your specific needs and budget. If you require a high-capacity power supply for demanding systems and value features like extended warranties and premium cooling solutions, the CORSAIR RM1000x is the superior choice despite its higher price of $179.99. However, if you're building a more modest system and looking for a cost-effective solution at $62.99, the SAMA White 650W provides solid performance with good efficiency and modularity. Each power supply has its strengths, making the final decision reliant on your particular requirements and financial considerations.