Gigabyte GP-P650G PG5 650W ATX 3.1 PCIe 5.1 80+ Gold PSU
GIGABYTE
Gigabyte GP-P650G PG5 650W ATX 3.1 PCIe 5.1 80+ Gold PSU
The Gigabyte GP-P650G PG5 is a 650W ATX 3.1 compliant power supply designed for next-generation gaming and workstation builds. It supports modern PCIe Gen 5 graphics cards with a native 16-pin connector capable of delivering up to 300W, and meets the latest power excursion requirements for multi-GPU and high-end CPU systems.
Why this product
ATX 3.1 and PCIe Gen 5 ready
Native 16-pin connector supports upcoming graphics cards like the RTX 50 Series with up to 300W delivery. Handles up to 3× GPU and 2× system power excursions per ATX 3.1 specification.
80 PLUS Gold efficiency
Achieves 90% efficiency at 50% load and 70% at low loads, reducing power waste, heat output, and fan noise.
Japanese capacitor build
Primary capacitors from top-tier Japanese manufacturers rated for over 20 years of lifespan at 25°C, underpinning long-term stability.
Compact 150×140×86 mm form factor
Fits tight cases without sacrificing performance. Smaller than typical ATX units, easing placement in space-constrained builds.
Comprehensive protection suite
OVP, OPP, SCP, UVP, OCP, and OTP safeguards protect against overvoltage, overcurrent, short circuit, and thermal faults.
- Capacity650W
- Efficiency Rating80 PLUS Gold
- Efficiency at 50% Load90%
- Form FactorATX 12V v3.1
- Primary ConnectorPCIe 16-pin (300W)
- Dimensions150 × 140 × 86 mm
- Warranty5 years
- SKUGIG-760
- EAN4719331556822
- ATX 12V v3.1 form factor fits standard full-size ATX cases and supports all current and next-generation Intel and AMD motherboards.
- PCIe Gen 5 native 16-pin connector directly powers next-generation graphics cards; 6+2 pin adaptors also available for legacy cards.
- 650W capacity sufficient for mid-range to high-end single-GPU gaming builds and workstations with modern CPUs.
- Designed for ATX 3.1-ready systems; older motherboards without ATX 3.1 support will not utilise the power excursion features but will operate normally.
- 650W is undersized for dual-GPU systems or extreme multi-threaded workloads exceeding 650W sustained draw.
Best for
- PCIe Gen 5 gaming builds with RTX 50 Series or equivalent high-power graphics cards.
- Space-constrained cases where compact dimensions (150×140×86 mm) are essential.
- Builders prioritising energy efficiency and lower operating temperatures through 80 PLUS Gold certification.
- Long-term systems where capacitor lifespan and durability matter; 20+ year rated Japanese capacitors reduce replacement risk.
- ATX 3.1-compliant platforms that benefit from native power excursion handling and native 16-pin connectivity.
Trade-offs
- Extreme dual or triple-GPU professional workloads; 650W is the baseline capacity and leaves minimal overhead for sustained multi-GPU power draw.
- Systems requiring widespread legacy cable compatibility; it ships with modern connectors (16-pin, 6+2 pin) and does not include abundant adaptors for older peripherals.
- Builders on the tightest budgets; 80 PLUS Gold certification and ATX 3.1 support command a price premium over Bronze-rated equivalents.
- Environments above 25°C ambient temperature; the 20+ year capacitor rating assumes 25°C operation and will degrade faster in hotter climates.
Designed to meet the demands of next-gen systems, this ATX 3.1 compliant PSU handles up to 3× GPU and 2× system power excursions with 70% efficiency at low loads. The high-performance native 16-pin cable delivers up to 300W for PCIe Gen 5 graphics cards, such as the GeForce RTX™ 50 Series and beyond.
Achieving 90% efficiency at a 50% load, this 80 PLUS Gold certified PSU reduces power loss, minimizes heat generation, and lowers fan noise, ensuring both performance and energy savings.
The life of the main capacitor is over 20 years (Environment 25°C) The primary capacitors are sourced from top-tier Japanese manufacturers, delivering a premium and stable power supply that effectively extends the product's lifespan.
General
| Brand | Gigabyte |
|---|---|
| Model | GP-P650G PG5 |
| Type | Intel Form Factor ATX 12V v3.1 |
| Output Capacity | 650W |
Power & Efficiency
| 80 PLUS Certification | Gold |
|---|---|
| Efficiency at 50% Load | 90% |
| Efficiency at Low Load | 70% |
| Input Voltage | 100–240 Vac |
| Input Frequency | 50–60 Hz |
| Active PFC | >0.9 typical |
Connectors & Cables
| PCIe 16-pin | 1× at 500 mm (300W native) |
|---|---|
| PCIe 6+2 pin | 2× at 500 mm + 150 mm |
| CPU/EPS 4+4 pin | 1× at 600 mm + 150 mm |
| ATX 20+4 pin | 1× at 600 mm |
| SATA | 6× at 420 mm + 150 mm + 150 mm |
| 4-pin Peripheral | 3× at 420 mm + 150 mm + 150 mm |
| Cable Type | Embossed, all black |
Protection & Reliability
| Protections | OVP, OPP, SCP, UVP, OCP, OTP |
|---|---|
| Primary Capacitors | Japanese, >20 years lifespan @ 25°C |
| MTBF | >100,000 hours |
| Hold Up Time | >17 ms |
| Power Good Signal | 100–150 ms |
| Warranty | 5 years (varies by region) |
Physical
| Dimensions | 150 × 140 × 86 mm |
|---|---|
| Fan | 120 mm HYB (Hydraulic Bearing) |
Shipping
All our products are shipped from the United Kingdom within 24 to 48 hours of purchase. See our Shipping and Returns page for full details.
Returns
- Tech Syndicate offers a full money-back guarantee on all purchases made in our store. If you are not satisfied with your purchase, we will provide a full refund, no questions asked.
- Refunds are available within 45 days of delivery.
- After the 45-day period you are no longer eligible for a refund, so we encourage you to try the product within the first few weeks to make sure it fits your needs.