Monday, 28 September 2026
PSUs · Review digest

GAMDIAS THOR P2-1350P Review

The GAMDIAS THOR P2-1350P boasts Platinum efficiency and flagship specs at a tempting price point. But does the impressive marketing match the reality of its electrical performance? We examine the crucial compromises you need to weigh before buying.

Black electronic device featuring a mesh grille top and a front panel labeled "THOR P2 1350P".
A black electronic device featuring a mesh grille top and a front panel with visible text and controls.

The GAMDIAS THOR P2-1350P is a high-wattage power supply that marks the company’s ambitious entry into the premium, high-capacity segment of the PC power market. Priced at $199.90, or in some regions closer to $159.90, it aims to undercut established competitors while offering a specification sheet that looks like a flagship product. The unit delivers 1350 watts of continuous power, 80 PLUS Platinum efficiency certification, full modular cabling, and compliance with the latest ATX 3.1 and PCIe Gen 5.1 standards. On paper, this is a formidable package, and the aggressive price point makes it an immediately attractive proposition for anyone building a system around a flagship graphics card.

The packaging and presentation follow the conventions of the premium PSU market. The unit arrives in a substantial box that communicates the key selling points: the wattage, the efficiency rating, the modular design, and the extensive warranty. Inside, the power supply is protected by molded foam, and the modular cables are neatly organized in a separate pouch. The accessory bundle includes a power cord, mounting screws, and the necessary documentation. The overall unboxing experience is positive and creates a favourable first impression consistent with what buyers expect from a high-end power supply.

The physical design of the THOR P2-1350P is restrained and functional. It measures 160mm in length, which is relatively compact for a unit of this wattage and helps with compatibility in smaller cases. The chassis is finished in a matte black that resists fingerprints, and the fan grille features a distinctive pattern that aligns with GAMDIAS’s current design language. The modular panel is clearly labelled, and the connectors are arranged logically, making installation straightforward. The unit feels solid and well-constructed, with no obvious flex or rattling when handled, which is reassuring given the power it is designed to deliver.

Internally, the THOR P2-1350P uses a modern topology that includes an Active PFC, a semi-bridge LLC resonant circuit, a full DC-to-DC design, and 12V synchronous rectification. This is a configuration capable of delivering excellent efficiency and tight voltage regulation when implemented correctly. GAMDIAS has equipped the unit with 100% 105°C Japanese capacitors, and the specific brand used is Rubycon, which is a well-respected name in the industry. The use of high-quality capacitors is a positive sign, as these components are critical to the long-term reliability and stability of a power supply.

The cooling system consists of a single 135mm fluid dynamic bearing fan. This fan supports a Smart Silent Mode that allows it to stop completely under low system loads, typically between 15% and 20% of the unit’s capacity. This is a valuable feature for users who prioritise silence during light workloads, such as web browsing or office tasks. When the fan does spin up under load, it is designed to provide efficient cooling without excessive noise. The fluid dynamic bearing is a good choice for longevity, as it produces less friction and noise than traditional sleeve bearings and is less prone to wear over time.

The modular cabling system is comprehensive and includes a native 12V-2×6 connector rated for up to 600 watts, which is the standard for powering the latest generation of high-end graphics cards, including the RTX 50 series. The connector features a dual-colour design to help users ensure it is properly inserted, which is a thoughtful safety feature given the issues that have plagued some 12VHPWR connectors. In addition to the 12V-2×6 cable, the unit includes multiple 6+2-pin PCIe connectors for broader GPU compatibility, as well as the standard 24-pin motherboard connector, EPS connectors for the CPU, and a generous number of SATA and peripheral connectors.

The efficiency rating of 80 PLUS Platinum is a significant selling point. This certification guarantees that the unit will operate at a high level of efficiency across a wide range of loads, reducing wasted energy and heat generation. Higher efficiency translates directly into lower electricity bills and a cooler operating environment inside the PC case. For a unit of this wattage, efficiency is particularly important, as even small percentage gains can represent a meaningful reduction in power consumption over time. The Platinum rating places the THOR P2-1350P in a tier above the more common Gold-rated units, and it is a strong indicator of the quality of the internal components.

The ATX 3.1 and PCIe Gen 5.1 compliance is another important feature. These standards ensure that the power supply can handle the transient power spikes that modern graphics cards are known to produce. The THOR P2-1350P supports up to 3x GPU power excursion and 2x total power excursion during sudden load spikes, which means it can absorb the momentary surges that occur when a GPU transitions from idle to full load without shutting down or causing system instability. This is a critical capability for anyone running a high-end graphics card, as inadequate transient response is a common cause of system crashes and instability under load.

The protection suite is comprehensive and includes Over Voltage Protection (OVP), Under Voltage Protection (UVP), Over Power Protection (OPP), Short Circuit Protection (SCP), Over Current Protection (OCP), and Over Temperature Protection (OTP). These are the standard protections that any reputable power supply should include, and their presence here indicates that GAMDIAS has not omitted any essential safety features. The 12-year warranty is exceptionally long for a power supply and is one of the longest warranties available in the industry. It demonstrates a high level of confidence in the product’s durability and provides buyers with peace of mind for over a decade of use.

However, the TechPowerUp review, as summarised by DVHARDWARE, concludes that the electrical performance of the THOR P2-1350P does not live up to the promises made by its marketing. This is a significant finding, as it means that despite the impressive specifications and the high-quality capacitors, the unit does not perform as well as its feature set would suggest. The review notes that the factors contributing to the low MSRP begin to show through, implying that GAMDIAS has cut costs in areas that affect real-world performance, even if the headline specifications appear competitive. This is a common trade-off in the power supply market, where manufacturers must balance cost against performance, and the THOR P2-1350P appears to have landed on the wrong side of that balance in certain respects.

The precise nature of the electrical performance shortfall is not detailed in the available summary, but the implication is that the unit’s voltage regulation, ripple suppression, or transient response may not be as tight as expected for a Platinum-rated unit at this price point. These are the metrics that separate a good power supply from a great one, and they matter for system stability, especially when overclocking or running high-end components near their limits. A power supply that delivers its rated wattage but does so with loose regulation or excessive ripple can cause subtle instability issues that are difficult to diagnose, and it may shorten the lifespan of sensitive components over time.

The price point of $199.90 is aggressive for a 1350W Platinum-rated unit with a 12-year warranty. By comparison, many competitors with similar specifications cost significantly more, and some units with lower wattage ratings or less efficient certifications are priced in the same range. This price advantage is the THOR P2-1350P’s primary selling point, and it makes the unit appealing to budget-conscious builders who need a lot of power but are not willing to pay flagship prices. However, the review suggests that the savings come at a cost, and buyers should be aware that they are not getting the same level of electrical performance as they would from a more expensive competitor.

The target market for the THOR P2-1350P is clearly enthusiasts and gamers building high-end systems. The 1350W capacity is more than sufficient for even the most demanding configurations, including systems with multiple GPUs or a single flagship GPU paired with a power-hungry CPU. The native 12V-2×6 connector and the multiple PCIe connectors make it suitable for a wide range of builds, and the 12-year warranty provides long-term security. The modular design is convenient for cable management, and the compact 160mm chassis helps with compatibility in smaller cases. On paper, it is a compelling package for anyone in the market for a high-wattage PSU.

The aesthetic of the THOR P2-1350P is understated, which is likely to appeal to users who prefer a clean, professional look rather than the aggressive gamer styling that some brands favour. The matte black finish and the subtle fan grille are unlikely to clash with other components, and the unit will blend in with most build themes. This is a sensible design choice, as a power supply is often one of the least visible components in a build, and there is little reason to draw attention to it. The focus on function over form is appropriate for a product of this nature.

The 135mm fan is larger than the 120mm fans found on many power supplies, which means it can move the same amount of air at lower RPM, resulting in quieter operation. The Smart Silent Mode is a welcome addition, as it allows the fan to stop entirely under light loads, making the system effectively silent from the PSU’s perspective during everyday tasks. This is particularly valuable for users who prioritise a quiet PC, and it is a feature that is increasingly common in premium power supplies but still not universal.

The internal build quality appears to be solid, with the Rubycon capacitors being a highlight. The use of a semi-bridge LLC resonant circuit and full DC-to-DC design is a modern approach that is capable of excellent performance, but the implementation matters as much as the topology. The review’s finding that electrical performance does not live up to expectations suggests that the implementation may be lacking in some areas, despite the quality of the components. This is a reminder that a good component list does not automatically translate into good performance, and that careful tuning and quality control are equally important.

The 12-year warranty is a standout feature and one of the longest in the industry. It provides a strong signal of confidence in the product’s longevity, and it means that buyers can expect the unit to last through multiple system builds. For a high-wattage power supply that is likely to be used in demanding systems, this long warranty is a valuable assurance. It also means that GAMDIAS is committed to supporting the product for over a decade, which is a significant commitment for a company that is relatively new to the high-wattage segment.

The pricing of $199.90 is not the lowest in the market, but it is competitive for a 1350W Platinum-rated unit. Some regions list the MSRP at $159.90, which would make it even more attractive. However, the review’s conclusion that the electrical performance does not match the marketing promises means that buyers should carefully consider whether the savings are worth the trade-offs. For users who need the wattage and the modular design but are not pushing their systems to the absolute limit, the THOR P2-1350P may be adequate. For those who demand the best electrical performance and are willing to pay for it, other options may be more suitable.

The comparison with competitors is inevitable at this price point. Brands like Corsair, Seasonic, and be quiet! offer units with similar specifications, and while they may cost more, they often deliver superior electrical performance and are backed by equally long or longer warranties. The THOR P2-1350P competes primarily on price, and for budget-conscious builders, that may be enough. However, the review’s findings suggest that the unit is not a straightforward recommendation, and that buyers should weigh the savings against the potential for performance compromises.

The overall verdict from the TechPowerUp review, as summarised by DVHARDWARE, is that the THOR P2-1350P is a mixed proposition. It offers an impressive specification sheet, a high-quality capacitor selection, a long warranty, and an aggressive price, but its electrical performance falls short of what the marketing promises. This makes it a difficult product to recommend without caveats. For users who prioritise value and are willing to accept some compromise in performance, it may be a viable option. For those who expect flagship-level electrical performance at this wattage, it may disappoint.

In the context of the broader power supply market, the THOR P2-1350P represents an ambitious attempt by GAMDIAS to establish a presence in the high-end segment. The company has clearly invested in the product, as evidenced by the use of Rubycon capacitors and the 12-year warranty, but the execution appears to have fallen short in some areas. This is not unusual for a company’s first foray into a new market segment, and it is possible that future revisions or models will address the shortcomings identified in this review.

For potential buyers, the key takeaway is that the THOR P2-1350P offers a lot of wattage for the money, but it may not deliver the level of electrical performance that enthusiasts expect from a Platinum-rated unit at this price. If the primary requirement is raw power capacity and the budget is tight, the unit is worth considering. If, however, the buyer is looking for a power supply that will deliver rock-solid performance under extreme loads and last for many years without issue, it may be worth spending more on a unit from a more established brand with a proven track record in the high-wattage segment.