ASUS ROG Thor 1200W Platinum vs ASUS ROG Loki 1000W SFX-L: Spec Comparison
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The asus rog thor 1200w platinum vs rog loki sfx l 1000w comparison highlights two distinct ASUS ROG power supplies. Both units carry 80 PLUS Platinum efficiency ratings and feature ROG heatsinks for thermal management. The main difference lies in their form factor and power output. The Thor is a full-size ATX unit with 1200W capacity, while the Loki is a compact SFX-L design rated at 1000W. You need to choose based on your case size and power requirements.
Key differences
| Aspect | ASUS ROG Thor 1200W Platinum II | ASUS ROG Loki 1000W SFX-L Platinum PSU |
|---|---|---|
| Form Factor | ATX | SFX-L |
| Wattage | 1200W | 1000W |
| Fan Size | 135mm | 120mm |
| Dimensions | 7.4 x 5.9 x 3.3 inches | 4.9 x 4.9 x 2.5 inches |
| Weight | 11 pounds | 4 pounds |
| ATX Version | not listed | ATX 3.0 |
Which one should you choose?
Choose ASUS ROG Thor 1200W Platinum II if
- You need maximum power headroom with 1200W output for high-end builds.
- You have a standard full-tower or mid-tower ATX case with ample space.
- You prefer a larger 135mm fan for potentially quieter operation at low loads.
Choose ASUS ROG Loki 1000W SFX-L Platinum PSU if
- You are building in a compact small-form-factor case that requires an SFX-L PSU.
- You want native ATX 3.0 support with a bundled 16-pin PCIe cable for modern GPUs.
- You prioritize a lighter unit at 4 pounds for easier handling in tight spaces.
Verdict: Choose the Thor if you have a standard ATX case and need the extra 200W of power for future upgrades. Select the Loki if space is limited or you need the compact SFX-L form factor with modern ATX 3.0 connectivity. Both offer high efficiency and reliable ASUS ROG build quality.
Thor 1200W vs Loki 1000W Specs
Form Factor
The ASUS ROG Thor 1200W Platinum II uses a standard ATX form factor, measuring 7.4 inches in length, 5.9 inches in width, and 3.3 inches in height. This size fits most mid-tower and full-tower cases. The ASUS ROG Loki 1000W SFX-L Platinum PSU is an SFX-L unit. It measures 4.9 inches in length, 4.9 inches in width, and 2.5 inches in height. The Loki is significantly shorter and smaller. You should choose the Thor if you have a standard case. Pick the Loki for small form factor builds where space is tight.
Wattage
Power output is a key differentiator between these two units. The ASUS ROG Thor 1200W Platinum II delivers 1200 watts of continuous power. This higher output handles extreme gaming rigs or heavy workstation loads with ease. The ASUS ROG Loki 1000W SFX-L Platinum PSU provides 1000 watts. While still powerful, it offers 200 watts less than the Thor. If your system requires maximum headroom for overclocking or multiple high-end GPUs, the Thor is the better choice. The Loki is sufficient for most high-performance builds.
Efficiency Rating
Both power supplies share the same efficiency certification. The ASUS ROG Thor 1200W Platinum II is 80 PLUS Platinum certified. The ASUS ROG Loki 1000W SFX-L Platinum PSU is also 80 PLUS Platinum certified. This means both units convert at least 92% of AC power to DC power at typical loads. This high efficiency reduces heat generation and lowers electricity costs over time. Since both products meet the same rigorous standard, neither has an advantage in this category. You get excellent efficiency from either option.
ATX Version
Modern compatibility depends on the ATX version supported. The ASUS ROG Loki 1000W SFX-L Platinum PSU is explicitly ATX 3.0 compatible. It includes a bundled 16-pin PCIe cable for PCIe Gen 5.0 graphics cards. This ensures direct power delivery for the latest GPUs. The data for the ASUS ROG Thor 1200W Platinum II does not list a specific ATX version. While it may support newer standards, the Loki explicitly highlights this feature. If you are building with the newest graphics cards, the Loki offers clear, stated compatibility.
Weight
Weight indicates build mass and potentially component quality. The ASUS ROG Thor 1200W Platinum II weighs 11 pounds. This substantial weight often correlates with larger internal components and robust construction. The ASUS ROG Loki 1000W SFX-L Platinum PSU weighs only 4 pounds. Its lighter weight is due to the smaller SFX-L form factor and compact design. Heavier units can sometimes offer better thermal mass. However, the Loki achieves its efficiency in a much smaller package. The Thor is significantly heavier due to its larger physical size.
Which PSU fits your build needs
Standard ATX builders needing max power
The Thor 1200W Platinum II delivers higher wattage for demanding setups. Its standard ATX form factor fits most mid-tower and full-tower cases easily. The 135mm fan supports 0dB mode for quiet operation. You get a 10-year warranty for long-term reliability.
Small form factor PC enthusiasts
The Loki 1000W SFX-L is designed for compact cases. Its smaller dimensions allow installation in tight spaces where ATX units will not fit. It includes an ATX 3.0 compliant 16-pin PCIe cable for modern graphics cards. This makes it ideal for mini-ITX builds.
Users prioritizing latest GPU connectivity
This unit supports the ATX 3.0 standard with a bundled 16-pin PCIe cable. It can deliver up to 600W to PCIe Gen 5.0 graphics cards. This direct connection simplifies cabling for new high-end GPUs. The 1000W output is sufficient for most high-performance systems.
The products compared
ASUS ROG Thor 1200W Platinum II
Best for: high-wattage standard ATX builds
- Wattage
- 1200W
- Efficiency Rating
- 80+ Platinum
- Fan Size
- 135mm
- Warranty
- 10 Year
- Dimensions
- 7.4 × 5.9 × 3.3 inches
- Weight
- 11 pounds
View on Amazon: ASUS ROG Thor 1200W Platinum II Affiliate link
This ATX power supply delivers 1200W of power with 80+ Platinum efficiency. It features a 135mm fan with a 0dB mode for quiet operation under light loads. The unit measures 7.4 inches long and weighs 11 pounds. It carries a 10-year warranty. This model suits builders needing high wattage for demanding GPUs in standard mid-tower cases.
Pros
- 1200W maximum power output
- 80+ Platinum efficiency rating
- 135mm PWM fan with 0dB mode
- 10-year warranty coverage
Cons
- Large 7.4-inch length limits small case compatibility
- Heavy 11-pound build
- Standard ATX form factor not for SFF builds
Good fit if
- You need 1200W for high-end GPUs
- You have a standard mid-tower case
- You want high efficiency ratings
Skip if
- You are building a small form factor PC
- You need SFX-L dimensions
- You prefer a lighter power supply
Verdict: ASUS ROG Thor 1200W Platinum II is a high-wattage ATX unit for standard cases. It fits users with large GPUs who need 1200W and do not have space constraints.
ASUS ROG Loki 1000W SFX-L Platinum PSU
Best for: compact builds with high-end GPUs
- Wattage
- 1000W
- Efficiency Rating
- 80 PLUS Platinum, Cybenetics Platinum
- Modularity
- Fully Modular
- ATX Version
- ATX 3.1, ATX 3.0
- PCIe Connector Type
- 12V-2x6
- Fan Size
- 120mm
View on Amazon: ASUS ROG Loki 1000W SFX-L Platinum PSU Affiliate link
This 1000W SFX-L power supply delivers 80 PLUS Platinum efficiency and ATX 3.0 compatibility. It includes a 120mm fan and a 16-pin PCIe cable for modern GPUs. The compact 4.9-inch design fits small cases. It suits builders needing high power in a small form factor without sacrificing efficiency or new connector support.
Pros
- 80 PLUS Platinum certification for up to 92% efficiency
- ATX 3.0 compliant with included 16-pin PCIe cable
- 120mm axial-tech fan for low noise operation
- Compact SFX-L form factor measuring 4.9 inches
Cons
- SFX-L size may not fit all standard ATX cases
- 1000W output is lower than the 1200W Thor option
- Heavier at 4 pounds compared to lighter SFX units
Good fit if
- You are building a compact PC with a high-end GPU
- You need ATX 3.0 support for PCIe 5.0 graphics cards
- You prefer high efficiency to reduce heat and noise
Skip if
- You require more than 1000W of power output
- You are using a standard ATX case with limited depth
- You need a power supply with a larger 140mm fan
Verdict: ASUS ROG Loki SFX-L 1000W fits small builds needing ATX 3.0 support. It offers high efficiency and modern connectors in a compact chassis.
Specifications side by side
| Spec | ASUS ROG Thor 1200W Platinum II | ASUS ROG Loki 1000W SFX-L Platinum PSU |
|---|---|---|
| Wattage | 1200W | 1000W |
| Efficiency Rating | 80+ Platinum | 80 PLUS Platinum, Cybenetics Platinum |
| Modularity | not stated | Fully Modular |
| ATX Version | not stated | ATX 3.1, ATX 3.0 |
| PCIe Connector Type | not stated | 12V-2x6 |
| Fan Size | 135mm | 120mm |
| Warranty | 10 Year | 10-Year |
| Form Factor | not stated | ATX |
| PCIe Version | not stated | PCIe 5.1 |
| Connector | not stated | 12V-2x6 Connector |
| Dimensions | 7.4 × 5.9 × 3.3 inches | 4.9 × 4.9 × 2.5 inches |
| Weight | 11 pounds | 4 pounds |
| Color | BLACK | ROG-LOKI-1000P-SFX-L-GAMING |
| Size | not stated | 1000W (Single Unit) |
| Model | not stated | ROG-LOKI-1000P-SFX-L-GAMING |
Frequently asked questions
Which PSU is better for a standard mid-tower case?
The ASUS ROG Thor 1200W Platinum II is the better choice for standard mid-tower cases. It uses a traditional ATX form factor that fits most standard chassis. The unit measures 7.4 inches in length, providing ample space for cable management. This size ensures compatibility with the majority of desktop enclosures on the market.
Can the Loki 1000W fit in a small form factor case?
Yes, the ASUS ROG Loki 1000W SFX-L is designed for compact builds. It uses an SFX form factor, making it significantly smaller than standard ATX units. Its compact dimensions allow it to fit into small form factor cases that cannot accommodate larger power supplies. This makes it ideal for users prioritizing space efficiency.
How much heavier is the Thor compared to the Loki?
The Thor 1200W is considerably heavier, weighing 11 pounds. In contrast, the Loki 1000W weighs only 4 pounds. This weight difference reflects the larger internal components and standard ATX construction of the Thor. The lighter Loki unit is easier to handle and install in tight spaces due to its reduced mass.
Do both units offer high efficiency ratings?
Both power supplies feature 80 PLUS Platinum efficiency ratings. This means they convert electrical power to usable energy with minimal loss. High efficiency results in less wasted heat and lower energy consumption. You can expect both units to operate reliably while maintaining strong performance standards under load.
Which PSU provides more wattage for high-end GPUs?
The ASUS ROG Thor 1200W Platinum II provides higher wattage at 1200W. This extra power supports high-end GPUs and demanding components more comfortably. The Loki 1000W offers 1000W, which is sufficient for many builds but lower than the Thor. Choose the Thor if you need maximum power headroom for extreme setups.
What are the physical dimensions of the Loki SFX-L?
The Loki 1000W SFX-L measures 4.9 inches in width, 2.5 inches in height, and 4.9 inches in length. These compact dimensions allow it to fit in small cases where standard ATX units would not. The smaller footprint is its primary advantage for builders using micro-ATX or mini-ITX chassis.