Lian Li SP Platinum
One of the strongest 1000W SFX units, as long as you can live with fan noise under heavy load.
- Efficiency
- 80+ Platinum
- Modular
- Full
- Standard
- ATX 3
- Form factor
- SFX
- Outputs
- 850 / 1000W
The verdict
Fitting 1000W into an SFX unit is hard, and Tom's Hardware calls the SP1000P's power density exceptional. Lian Li's SP Platinum line comes in 850W and 1000W on my list.
The electrical results are strong: outstanding voltage regulation and ripple suppression, Japanese capacitors throughout and a 10-year warranty. The trade-off is the small fan. Both reviews found it loud under heavy load.
For a small RTX 5080 or RTX 5090 build where every millimetre counts, it's one of the best options. If noise matters most and your case takes SFX-L, a bigger fan will run quieter.
Lian Li SP Platinum reviews
Two reviews of the SP1000P agree it packs strong electrical performance and quality parts into an SFX unit, and that its small fan gets loud under heavy load.
Both labs agree
- Strong electrical performance, with tight voltage regulation. Tom's HardwareTech4Gamers
- Excellent efficiency for an SFX unit. Tom's HardwareTech4Gamers
- High-quality components. Tom's HardwareTech4Gamers
- Loud under heavy load. Tom's HardwareTech4Gamers
Also worth knowing
- Japanese capacitors throughout, sharp protection responses, individually sleeved cables and a 10-year warranty, but limited connectors. The fan stays off until about 370W at room temperature. Tom’s couldn’t confirm who builds it. Tom's Hardware
The Lian Li SP1000P achieves remarkable power density, delivering 1000W from a standard SFX form factor.SP1000P, ATX 3.1Tech4GamersJanuary 2026
It delivers excellent efficiency, strong electrical performance, and top-tier components in a very compact size.SP1000P (hands-on test)
Both reviews tested the 1000W model. Tech4Gamers’ is a hands-on test without stated lab equipment, so it carries less weight.
Pick your output
- 850WHigh-end builds, up to an RTX 5080 class card.Check 850W price
- 1000WThe most power-hungry cards, RTX 5090 class.Check 1000W price
Sizes assume a typical processor. Check your build in the wattage guide.
Other Tier A at 1000W
- undefined80+ PlatinumCheck price
- SilverStone Extreme (SFX & SFX-L) Rz Platinum80+ PlatinumCheck price
Specs
| Tier on my list | A · High-end builds |
|---|---|
| Wattages | 850W, 1000W |
| Efficiency | 80 Plus Platinum |
| Modular | Fully modular |
| Standard | ATX 3 |
| Size | SFX |
| Released | 2025 |
Lian Li SP Platinum questions
Is the Lian Li SP1000P loud?
Under heavy load, yes. Tom’s Hardware found it audibly loud beyond 60 to 70% load. The fan stays off until about 370W at room temperature.
Which Lian Li SP Platinum wattage should I get?
It comes in 850W, 1000W. Match it to your graphics card using the output guide above, or the calculator for your exact parts.
Can the SP1000P run an RTX 5090?
Yes. 1000W is the recommended size for a typical RTX 5090 build. Give the case good airflow.