What PSU do you need for a Intel Arc A380?
The Intel Arc A380 has a vendor-published board power (TGP/TBP) of about 75 W. Sizing a power supply from that figure and a typical companion system (a 125 W-class CPU plus standard ATX accessories, ~242 W), here is what we recommend.
Recommendations are planning estimates, not electrical or purchasing advice. The hardware figures behind them are vendor-published; your exact board-partner model and build can still differ.
Recommended (comfortable)
450 W
Standard headroom for transient spikes and a little future room.
Minimum
450 W
Smallest quality PSU tier we would pair with this card in a typical build.
GPU board power
75 W
Vendor TGP/TBP — a conservative ceiling, not typical gaming draw.
Vendor-recommended PSU
—
Not recorded for this card; check the official product page.
Power connector
1× PCIe 8-pin. Use native PSU cables and confirm the layout on your exact board-partner model. See connector & ATX 3.x details →
Why 450 W for this card
The Intel Arc A380's draw is not flat. Brief spikes above the rated board power are normal, and they are short enough that a wall meter never shows them — but a power supply sitting close to its limit can trip on one. That is what the headroom in these figures is for: 75 W is the sustained ceiling, not the worst instant. This card feeds from standard PCIe connectors, so any quality supply with the right cable count works; there is no 16-pin cable to source. At 75 W a quality unit of the recommended wattage handles transients without drama; an ATX 3.x supply adds margin but is not essential. We do not publish a spike figure for the Intel Arc A380 because the manufacturer does not publish one.
On the recommended 450 W supply, a Ryzen 7 9800X3D paired with the Intel Arc A380 draws roughly 354 W under load — about 79% of the unit's rating. The 80 PLUS programme certifies efficiency at 20%, 50% and 100% load, and units are typically at their best around the middle of that range, so this sits in a sensible place: enough margin for transients without paying for capacity that never gets used.
Intel Arc A380's manufacturer does not publish a recommended system wattage for this card, so the figures here come entirely from its board power plus a typical rest-of-system load.
Pairing this card with different CPUs
The CPU does change the answer here. With a Ryzen 5 7600 this build sits on a 450 W supply, but moving to a Core i9-14900K (253 W peak) pushes the estimate to 650 W. If you are pairing this GPU with a high-power CPU, budget for the larger unit.
| CPU | CPU peak | System load | Recommended PSU |
|---|---|---|---|
| Ryzen 5 7600 | 88 W | 280 W | 450 W |
| Ryzen 7 9800X3D | 162 W | 354 W | 450 W |
| Core i9-14900K | 253 W | 445 W | 650 W |
Other popular choices map onto this table rather than changing it: the Ryzen 7 7800X3D has the same 162 W peak as the Ryzen 7 9800X3D, so that row applies to it unchanged; a Core i5-14600K (181 W peak) breaks to its own 550 W tier; a Ryzen 9 9950X (230 W peak) breaks to its own 550 W tier.
Assumes an ATX board, 2 RAM sticks, 1 SSD, 3 fans and a USB allowance, at the standard headroom profile. Change any of it in the calculator.
Cabling this card
This card needs a single 8-pin PCIe connector. Use the cable that came with your supply, and avoid adapters where you can — at 75 W there is no need for a splitter.
Vendor does not publish a reference power connector for this card; value shown is the common partner-card configuration. Factory-overclocked cards from board partners can also carry a higher power limit than the reference design, so if your card advertises an OC BIOS, treat the figures here as the floor rather than the ceiling.
Want a number for your exact CPU and parts? Open the full PSU Calculator with this GPU pre-selected →
The standards behind these numbers
- How much PSU headroom do you actually need?
Why the recommendation above sits above the 75 W board power rather than on it.
Worth knowing
Intel official Total Board Power 75 W. Intel publishes no PSU recommendation for this card, on ARK or in its own A380 product guide, so none is shown.
Board-power source: Intel official specification; multi-agent web verification 2026-07-15. Last updated: 2026-07-22.
Frequently asked questions
What size PSU do I need for a Intel Arc A380?
For a typical build that pairs the Intel Arc A380 (about 75 W board power) with a 125 W-class CPU and standard accessories, plan for at least a 450 W power supply. A 450 W unit gives comfortable headroom for transient spikes and future upgrades. These are estimates — verify against your exact parts.
How much power does the Intel Arc A380 draw?
Its vendor-published board power (TGP/TBP) is about 75 W. That is a conservative ceiling used for PSU sizing, not the typical draw you would see while gaming.
Does the CPU change what PSU the Intel Arc A380 needs?
Yes. With a Ryzen 5 7600 the estimate is 450 W, while a Core i9-14900K (253 W peak) takes it to 650 W.