MSI MAG A850GLS PCIE5
A quiet, efficient 850W that's easy to recommend when the price is right.
- Efficiency
- 80+ Gold
- Modular
- Full
- Standard
- ATX 3
- Form factor
- ATX
- Outputs
- 650 / 750 / 850 / 1000W
The verdict
The A850GLS is MSI's step up from the A850GL I already list, and it fixes the thing I liked least about that unit: the noise. HWBusters found it among the quietest 850W units it has tested, nearly 5 dBA quieter than Corsair's RM850e.
Both labs found it efficient, with Tom's Hardware measuring Platinum-level efficiency even though it's sold as Gold. Their shared complaint is protection limits on the minor rails that are set too loosely, and HWBusters notes there's no fan failure protection.
Price decides it. At launch it cost more than rivals, but Tom's expects that to come down. If it's close to the A850GL's price, I'd take this one.
MSI MAG A850GLS PCIE5 reviews
Two lab reviews of the ATX 3.1 model agree it's quiet and efficient for the money. Both flag loosely set protection limits on the minor rails.
Both labs agree
- Very quiet at everyday loads. HWBustersTom's Hardware
- High efficiency for a Gold-badged unit. HWBustersTom's Hardware
- ATX 3.1 compliant, with a 600W 16-pin graphics card cable. HWBustersTom's Hardware
- Over-current limits on the minor rails are set too loosely. HWBustersTom's Hardware
Also worth knowing
- No fan failure protection, and 12V transient response is mediocre at high loads. HWBusters
- Uses mid-tier Taiwanese capacitors, and the fan gets loud near full load, especially when hot. Tom's Hardware
Similar to the A1000GLS PCIE5, the A850GLS is a decent product.MAG A850GLS PCIE5, ATX 3.1Tom's HardwareOctober 2025
A competent workhorse that gets the job done without breaking the bank.MAG A850GLS PCIE5, ATX 3.1
Both reviews tested the 850W model.
Pick your output
- 650WMid-range builds, up to an RTX 5070 class card.Check 650W price
- 750WMid-range builds, up to an RTX 5070 Ti class card.Check 750W price
- 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 850W
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Specs
| Tier on my list | A · High-end builds |
|---|---|
| Wattages | 650W, 750W, 850W, 1000W |
| Efficiency | 80 Plus Gold |
| Modular | Fully modular |
| Standard | ATX 3 |
| Size | ATX |
| Released | 2025 |
MSI MAG A850GLS PCIE5 questions
Is the A850GLS quieter than the A850GL?
Yes. HWBusters found it way quieter, with average noise among the lowest in the 850W category.
Which MSI MAG A850GLS PCIE5 wattage should I get?
It comes in 650W, 750W, 850W, 1000W. Match it to your graphics card using the output guide above, or the calculator for your exact parts.
Is the MSI A850GLS good for an RTX 5080?
Yes. 850W is the recommended size for an RTX 5080, and it has a native 600W 16-pin cable.