The FSP VITA GM 850W is a compact dimensions ATX PSU, Platinum certified, compatible with the ATX v3.1 spec. It comes with a 600W set 12V-2×6 connector, so it can fully support powerful and power-hungry GPUs.
The FSP VITA GM 850W is (or will be) included in my best ATX v3.x & PCIe 5.x PSU picks article.
The FSP VITA GM line consists of four members with capacities ranging from 650W to 1000W. Thanks to the 140mm depth, all have super-compact dimensions and utilize a fully modular cable design. They are also ATX v3.1 compliant, thanks to the 12V-2×6 connector they host on their modular panels. I have already evaluated the 1000W model, and in today’s review, I will look at the 850W unit.
There is no semi-passive fan operation, which is fine with me as long as the fan doesn’t spin at high speeds at light loads. If you have a PWM-controlled fan speed, there is no need for semi-passive operation, which applies extra stress to the PSU’s components. A fan spinning at low speeds won’t be noticeable anyway, while at the same time, it will provide enough airflow to keep the PSU cool under light loads, where the thermal loads are decreased. Lastly, another interesting fact about the Vita models is that although they are rated as Cybenetics Platinum in efficiency, FSP decided to downgrade them to Gold to match the respective 80 PLUS badge. This is what I call crazy marketing!
| Color | Model | MSRP (w/o VAT) |
| Black | VITA-1000GM | $159 |
| VITA-850GM | $139 | |
| VITA-750GM | $119 | |
| VITA-650GM | $99 | |
| White | VITA-1000GM | $164 |
| VITA-850GM | $144 | |
| VITA-750GM | $124 | |
| VITA-650GM | $104 |
ATX v3.1 850W PSU Reviews:
- 1st Player NGDP 850W PSU Review
- XPG Core Reactor II VE 850W PSU Review
- Enermax Revolution D.F.12 850W PSU Review
- XPG KYBER 850W ATX v3.1 PSU Review
- Cooler Master GX III 850W ATX v3.0 PSU Review
- XPG Core Reactor II 850W PSU Review
- Thermaltake Toughpower PF3 850W PSU Review
- Thermaltake Toughpower GF A3 850W PSU Review
- MSI MAG A850GL PCIE5 850W PSU Review
- Montech Titan Gold 850W PSU Review
- Cougar GEX X2 850W PSU Review
- be quiet! Pure Power 12 M 850W PSU Review
- Thermaltake Toughpower GF3 ARGB 850W PSU Review
- be quiet! Dark Power 13 850W PSU Review
- Thermaltake ToughPower GF3 850W ATX v3.0 PSU Review
- Sharkoon Rebel P20 850W ATX v3.1 PSU Review
- Manufacturer (OEM): FSP
- Max Power: 850W
- Cybenetics Efficiency: [115V] Cybenetics Platinum (89-91%), [230V] Cybenetics Platinum (91-93%)
- Noise: Cybenetics A (20-25 dB[A])
- Compliance: ATX v3.1, EPS 2.92
- Operating Temperature (Continuous Full Load): 0 – 40 °C
- Alternative Low Power Mode support: Yes
- Power 12V combined: 850W
- Number of 12V rails: 1
- Power 5V + 3.3v: 100W
- Power 5VSB: 15W
- Cooling: 120mm Rifle Bearing Fan (D12SH-12)
- Semi-Passive Operation: ✗
- Modular Design: Yes (Fully)
- High Power Connectors: 2x EPS (2x cables), 4x PCIe 6+2 pin (2x cables), 1x PCIe 12+4 pin (600W)
- Peripheral Connectors: 8x SATA (3x cables), 4x 4-pin Molex (2x cables)
- ATX Cable Length: 600mm
- EPS Cable Length: 700mm
- 12+4 pin PCIe Cable Length: 700mm
- 6+2 pin PCIe Cable Length: 650+150mm
- Distance between SATA / 4-pin Molex: 150mm / 155+100mm
- In-cable capacitors: No
- Dimensions (W x H x D): 150 mm x 85 mm x 140mm
- Weight: 1.54 kg (3.4 lb)
- Warranty: 10-years
- MSRP (excluding VAT): $139
Power Specifications
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Power | Amps | 20 | 20 | 70.83 | 3 | 0.3 |
| Watts | 100 | 850 | 15 | 3.6 | ||
| Total Max. Power (W) | 850 | |||||
Why did you mention fan being terrible yet according to noise levels its on the top of the list having lower dBA than some more premium units such as Corsair Shift. Also considering the PSU has 10 year warranty I’m sure they will replace it multiple times if it happens to die often, after 10 years well it’s time to replace PSU altogether anyway.
Bought this psu after reading this review. My only concern is that my unit have coil whine when on idle from time to time.
Check if the coil whine is from the PSU or other parts in your system. It also has to do with the situation, for example in some game menus where FPS are unlimited, it is natural to have coil whine (from the GPU)
What about compare to hydro g pro series? Is there significant difference in term of quality and performance?
Hi, between FSP Vita 850w and XPG Core Reactor II 850W which one would you recommend?
The XPG is about $15 – $17 cheaper here
They have similar overall performance so I would get the one that is more affordable.
What about compared to Superflower Leadex vii Gold? It’s also about $17 – $20 more than XPG
Leadex is very good.
It’s now sold out everywhere in my region, alternative would be NZXT C850 for 230v? NZXT is $10 more than the XPG or the XPG might still be better choice?
I just got this PSU and am experiencing quite a bit of coil whine. Is this something you’ve had while performing your testing?
Thinking of either replacing my set or just living with it.
Nope if there are any coil whine issues, I mention them in the review. You should probably replace it.