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Comparison Gigabyte Ultra Durable PG5 UD850GM PG5 vs Gigabyte Ultra Durable GM UD850GM

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Gigabyte Ultra Durable PG5 UD850GM PG5
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Power850 W850 W
Form factorATXATX
Specs
PFCactiveactive
Efficiency90 %90 %
Cooling systemsemi-passive1 fan
Fan size120 mm120 mm
Fan bearinghydrodynamichydrodynamic
Certification80+ Gold80+ Gold
ATX12V version32.31
Power connectors
MB/CPU power supply24+8+8(4+4) pin24+8+8(4+4) pin
SATA88
MOLEX33
PCI-E 8pin (6+2)44
PCI-E 16pin1
Floppy
Cable systemmodularmodular
Cable length
MB610 mm610 mm
CPU600 mm600 mm
SATA600 mm600 mm
MOLEX500 mm500 mm
PCI-E600 mm600 mm
Max. power
+3.3V20 А20 А
+5V20 А20 А
+12V170.8 А70.8 А
-12V0.3 А0.3 А
+5Vsb3 А3 А
+12V850 W849 W
+3.3V +5V105 W105 W
-12V3.6 W3.6 W
+5Vsb15 W15 W
General
Over voltage protection (OVP)
Over power protection (OPP)
Short circuit protection (SCP)
ProtectionUVP, OCP, OTPUVP, OCP, OTP
Manufacturer's warranty5 years5 years
Dimensions (HxWxD)86x150x140 mm86x150x140 mm
Added to E-Catalogseptember 2023june 2022

Cooling system

1 fan. The most common option. The power of such a system is quite enough to cool the power supplies, including Above average and relatively inexpensive. On the other hand, fan operation creates noticeable noise, especially in low-cost power supplies with small diameter fans (see "Fan Diameter").

2 fans. The second fan is usually installed in powerful power supplies, for which the power of one fan is not enough. The price for such efficiency, in addition to increased cost, is an increased noise level.

— to Semi-passive cooling. A function that allows you automatically turn off the PSU cooling system in situations where the load on the power supply is low and heat dissipation is reduced. It is found only in models with active cooling. Recall that systems of this type are more efficient than passive ones, but they consume additional energy and create noise during operation. Accordingly, at a light load, when intensive cooling is not required, it is more reasonable to turn off the fans — this saves energy and reduces the noise level.

Passive(radiators). Compared to fans, heatsinks have a number of advantages: for example, they do not create noise at all and do not require their own power supply (thus reducing overall power consumption). On the other hand, they are much less efficient, as a result — the power...of power supplies with passive cooling does not exceed 600 watts. In addition, these PSUs are quite expensive.

ATX12V version

A standard for power supplies that supplements the ATX specifications regarding power supply along the 12 V line. Introduced into use since the time of the Intel Pentium 4 processor. In the first series of the standard, the +5 V line was mainly used; from version 2.0, the +12 V line was introduced to fully power the components computer. Also in the second generation, a 24-pin power connector appeared, used in most modern motherboards.

PCI-E 16pin

the 16-pin PCI-E power connector is designed to replace the existing 8-pin counterparts. It consists of twelve lines for current supply and four more for data transmission. The connector provides up to 600 W of additional power, which is a fourfold increase in power compared to 8-pin versions of the interface. Additional PCI-E connectors of all formats are used to power those types of internal peripherals that are no longer enough with 75 W supplied directly through the PCI-E socket on the motherboard.

Floppy

The presence of at least one Floppy power connector in the PSU.

Initially, this connector was intended to power floppy disk drives, hence the name. It is also known under the designation "mini-Molex". Anyway, this standard is generally considered obsolete, but it is still used by some specific types of components, and therefore continues to be used in power supplies.

+12V

The maximum power that the PSU is capable of delivering to the + 12V power line.

See "Maximum current and power" for details on power lines in general. Here it is worth mentioning that 12 V is the most popular voltage among computer power connectors. It is used in almost all such connectors (with a few exceptions), and some plugs (for example, additional PCI-E power for 6 or 8 connectors) use only 12-volt lines — and in the + 12V format. So this indicator is one of the most important characteristics of any PSU.

Note that many power supplies have several separate + 12V power lines. In such cases, the total power is indicated here, which, usually, is divided equally between the lines.
Gigabyte Ultra Durable PG5 often compared
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