Tuesday, March 29th 2022

GALAX RTX 3090 Ti HOF First Graphics Card with Dual 16-pin Connectors (1200W Input Capability)

The GeForce RTX 3090 Ti debuted the new ATX 16-pin power connector for graphics cards, which minimize the cable clutter in your case, while meeting the growing power demands of graphics cards as Moore's Law buckles. During our reviews of the RTX 3090 Ti, we noticed that a handful graphics card PCBs had provision for a second 16-pin connector (implying that the first one with a maximum of 600 W of power delivery is maxed out).

GALAX debuted the first graphics card with two 16-pin connectors, a theoretical power input capability of a whopping 1200 W. At first we thought this is an exercise in absurdity, until we took a close look at our numbers again. Currently, ATX 3.0 PSUs with 16-pin connectors are extremely rare, and so every NVIDIA board partner is required to include an NVIDIA-developed adapter that converts three 8-pin PCIe power connectors to one 16-pin. Three 8-pin connectors only add up to 450 W, whereas in our testing we noticed that some of the cards were peaking well beyond 450 W, despite using this adapter.
This is where GALAX's idea of a dual 16-pin connector begins to make sense. Two 16-pin connectors mean the inclusion of two cable adapters, for a total of six 8-pin inputs, and an input capability of 900 W when using 8-pin PCIe connectors. The GALAX HOF series targets the crème de la crème of the overclocking community, where a stable power delivery is crucial to achieve record-breaking OC feats.

As for the power limits, officially the GALAX RTX 3090 Ti HOF has a power limit of 480 W, but a special BIOS-based P-mode activates 516 W power limits (something way beyond the capability of three 8-pin connectors), and hence the decision to go with a pair of 16-pin connectors.

Do check out our reviews of four RTX 3090 Ti graphics cards, where we discovered some interesting findings in our power testing.
Source: VideoCardz (Twitter)
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27 Comments on GALAX RTX 3090 Ti HOF First Graphics Card with Dual 16-pin Connectors (1200W Input Capability)

#1
Chomiq
Sure, why not. This is just crazy at this point.
Posted on Reply
#2
the54thvoid
At this point, and physics can back me up on this one, if you could run it at that power level (and I bet you cannot, at least, not on air), then this would make a small room heater for winter. Excellent to offset the high gas bills, assuming you get gas free electricity to power it.
Posted on Reply
#3
zo0lykas
the54thvoidAt this point, and physics can back me up on this one, if you could run it at that power level (and I bet you cannot, at least, not on air), then this would make a small room heater for winter. Excellent to offset the high gas bills, assuming you get gas free electricity to power it.
has a power limit of 480 W, but a special BIOS-based P-mode activates 516 W power limits
Posted on Reply
#4
RealKGB
Suggested title rework:
GALAX RTX 3090 Ti HOF now doubles as a space heater when running
Posted on Reply
#5
TheoneandonlyMrK
And people mocked Vega for its power use, THIS is pure comedy gold.
If it is anything less than 20% better than the BEST 3090 it's a waste of every kind of effort.

More than 20% better for a third or more power wouldn't be great though either.

5/10%, 1.948 thousand pounds, no Ty.
Posted on Reply
#6
freeagent
Yeah I don’t think I like the way tech is heading.. might just have to run old stuff for a bit until they bring energy conservation back..
Posted on Reply
#8
Assimilator
btarunr... activates 516 W power limits (something way beyond the capability of three 8-pin connectors)...
Do you know anything about how PCIe slots work?
Posted on Reply
#9
Jhart1228
Strange times when every press release for a "halo" enthusiast GPU can pass for an April fool's joke.
Posted on Reply
#10
tresnugget
AssimilatorDo you know anything about how PCIe slots work?
Yeah, someone forgot that 75w comes from the pcie slot. There's been a couple 520w cards with 3 8 pins way before these 16 pin connectors
Posted on Reply
#11
Cutechri
I want to perish. My only reaction to this
Posted on Reply
#12
DeathtoGnomes
the54thvoidAt this point, and physics can back me up on this one, if you could run it at that power level (and I bet you cannot, at least, not on air), then this would make a small room heater for winter. Excellent to offset the high gas bills, assuming you get gas free electricity to power it.
I agree 480w is too much on an air cooler. 90°-92° for normal range on 3090s. This OC would be closer to if not over 100°.
Posted on Reply
#13
ThrashZone
Hi,
Everyone wants galex vbios though :laugh:
Posted on Reply
#14
Lenne
S.T.A.R.S.
Eh, is it that long already when they put out new cards with efficiency in mind? Oh wait, Pascal is that old..
Posted on Reply
#15
the54thvoid
ThrashZoneHi,
Everyone wants galex vbios though :laugh:
Wonder how many folks we'll see in the 'flash' forums lamenting their bricked cards?
Posted on Reply
#16
ThrashZone
the54thvoidWonder how many folks we'll see in the 'flash' forums lamenting their bricked cards?
Hi,
Well I'd bet most will not have dual vbios cards which is the only time I'd chance it :cool:
Posted on Reply
#17
eidairaman1
The Exiled Airman
TheoneandonlyMrKAnd people mocked Vega for its power use, THIS is pure comedy gold.
If it is anything less than 20% better than the BEST 3090 it's a waste of every kind of effort.

More than 20% better for a third or more power wouldn't be great though either.

5/10%, 1.948 thousand pounds, no Ty.
Return of the FX 5800/5900 or Fermi 480/580?

This things a brick, next
Posted on Reply
#18
phill
If I'm not mistaken, I believe there has been a few bios mods for the 3090 cards, that are able to allow 1000w already...?? I believe even the Galax card was tested seeing this as well?.... Two seconds and I'll see if I can find the link....

Here goes....

And I don't believe there was any much difference either.... Shocking.
Posted on Reply
#19
Fluffmeister
TheoneandonlyMrKAnd people mocked Vega for its power use, THIS is pure comedy gold.
If it is anything less than 20% better than the BEST 3090 it's a waste of every kind of effort.

More than 20% better for a third or more power wouldn't be great though either.

5/10%, 1.948 thousand pounds, no Ty.
Vega was late, no faster than the GTX 1080 and far more power hungry, it deserved to get mocked.
Posted on Reply
#20
bonehead123
w..........T............f............

1200w........

w.................T......................f.......................

time to head over the local warp core outlet, hehehehe :)

here's hopin da 'Zon sells 'em with next or 2-day delivery :)
Posted on Reply
#21
Jism
Its only to stabilize your power feed with hefty OC's ; not like it adds anything "special" to the table.

Some cheap PSU's cant handle 12A per yellow wire.

This just balances it out.
Posted on Reply
#23
watzupken
I think Nvidia is probably trying to make the next gen cards not look that bad by pushing the power limits to 450W for current reference cards. This HOF and all the top tier cards that allow higher power limits are really pushing the limits really hard. 1200W to me is absurd. Imagine the amount of heat that is produced. While one can tame the GPU temps by resorting to water cooling, but that does not solve the fact that 1000+ W of heat is being dumped into the atmosphere. So I can imagine your room will be heating up very rapidly.
Posted on Reply
#24
Xex360
Timing is a bit off for this card, if you don't count people living upside down.
Posted on Reply
#25
TheoneandonlyMrK
FluffmeisterVega was late, no faster than the GTX 1080 and far more power hungry, it deserved to get mocked.
As does this.
Posted on Reply
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