Intel Arc A · Alchemist · data reviewed 2026-11-10
What PSU for the Intel Arc A580?
With a Ryzen 7 9800X3D, two DDR5 sticks, one NVMe drive, and three fans, WattWise estimates 362 W continuous while gaming. The minimum size is 500 W. The efficiency size is 750 W.Intel does not publish a system minimum for this card.
These open a store search for that wattage class. Prices stay on the store. Disclaimer.
Three CPU pairings
Same platform each time: two memory modules of the CPU's generation, one NVMe drive, three fans, no pump. Gaming uses the CPU's base power. The ceiling puts the CPU on its package limit and the GPU on rated board power.
| CPU | Gaming load | Minimum | Efficiency size | Both at the limit |
|---|---|---|---|---|
| Ryzen 5 9600X a 65 W six-core gaming CPU | 307 W | 400 W | 650 W | 330 W · 450 W |
| Ryzen 7 9800X3D the current 120 W gaming CPU most builds are compared against | 362 W | 500 W | 750 W | 404 W · 550 W |
| Ryzen 9 9950X a 170 W sixteen-core CPU at its stock 200 W package limit when both are maxed | 412 W | 550 W | 850 W | 442 W · 600 W |
Connectors and spikes
8 GB GDDR6. Total Board Power: 185 W, from the vendor. These figures are the reference design. A partner card can raise the power limit and change the plug.
Intel Arc A580 is rated 185 W. Intel's A580 specification page does not list the auxiliary power connector.
The cited specification does not list the auxiliary plug, so WattWise does not invent an 8-pin or 12V-2x6 requirement. Read the card you are buying. The continuous wattage is still the number to shop with.
The vendor does not publish a separate in-game average. The gaming estimate uses rated board power.
Intel's Arc A580 specification page publishes 185 W total board power and does not publish a system PSU minimum. The 600 W note on Intel's A770 and A750 integration article is for those cards, so it is not copied onto the A580.
Questions this card actually raises
What PSU do I need for a Intel Arc A580 with a Ryzen 7 9800X3D?
With 2× DDR5, one NVMe drive, and three fans, WattWise estimates 362 W continuous while gaming. The minimum size for that estimate is 500 W. The efficiency size, near 50% load, is 750 W. If the CPU and GPU both hit their power limits together, the load is 404 W and the minimum size is 550 W.
Which power connectors does the Intel Arc A580 reference design use?
Intel's A580 specification page does not list the auxiliary power connector.. Intel Arc A580 is rated 185 W. Intel's A580 specification page does not list the auxiliary power connector.
Why is the vendor PSU number different from WattWise for the Intel Arc A580?
Intel's Arc A580 specification page publishes 185 W total board power and does not publish a system PSU minimum. The 600 W note on Intel's A770 and A750 integration article is for those cards, so it is not copied onto the A580.
Do transient spikes mean I should double the PSU for a Intel Arc A580?
The cited specification does not list the auxiliary plug, so WattWise does not invent an 8-pin or 12V-2x6 requirement. Read the card you are buying. The continuous wattage is still the number to shop with.