Intel Arc A · Alchemist · data reviewed 2026-11-10
What PSU for the Intel Arc A750?
With a Ryzen 7 9800X3D, two DDR5 sticks, one NVMe drive, and three fans, WattWise estimates 402 W continuous while gaming. The minimum size is 550 W. The efficiency size is 850 W.Intel's published system minimum is 600 W.
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 | 347 W | 450 W | 700 W | 370 W · 500 W |
| Ryzen 7 9800X3D the current 120 W gaming CPU most builds are compared against | 402 W | 550 W | 850 W | 444 W · 600 W |
| Ryzen 9 9950X a 170 W sixteen-core CPU at its stock 200 W package limit when both are maxed | 452 W | 600 W | 1,000 W | 482 W · 650 W |
Connectors and spikes
8 GB GDDR6. Total Board Power: 225 W, from the vendor. These figures are the reference design. A partner card can raise the power limit and change the plug.
Intel Arc A750 is rated 225 W. 1× 8-pin + 1× 6-pin. The connector budget covers the rated board power.
This reference design uses 6-pin and 8-pin plugs, not 12V-2x6. Shop the continuous wattage. A PSU without a 12V-2x6 connector follows the lower ATX excursion column (150% for 100 µs on units at or under 450 W, and on larger units that omit the connector). That is still not a reason to double the label.
The vendor does not publish a separate in-game average. The gaming estimate uses rated board power.
Intel's A-series integration guide asks for a minimum 600W PSU with 1× 8-pin and 1× 6-pin PCIe connectors for these cards.
Questions this card actually raises
What PSU do I need for a Intel Arc A750 with a Ryzen 7 9800X3D?
With 2× DDR5, one NVMe drive, and three fans, WattWise estimates 402 W continuous while gaming. The minimum size for that estimate is 550 W. The efficiency size, near 50% load, is 850 W. If the CPU and GPU both hit their power limits together, the load is 444 W and the minimum size is 600 W.
Which power connectors does the Intel Arc A750 reference design use?
1× 8-pin + 1× 6-pin. Intel Arc A750 is rated 225 W. 1× 8-pin + 1× 6-pin. The connector budget covers the rated board power.
Why is the vendor PSU number different from WattWise for the Intel Arc A750?
Intel publishes a system minimum of 600 W. Intel's A-series integration guide asks for a minimum 600W PSU with 1× 8-pin and 1× 6-pin PCIe connectors for these cards.
Do transient spikes mean I should double the PSU for a Intel Arc A750?
This reference design uses 6-pin and 8-pin plugs, not 12V-2x6. Shop the continuous wattage. A PSU without a 12V-2x6 connector follows the lower ATX excursion column (150% for 100 µs on units at or under 450 W, and on larger units that omit the connector). That is still not a reason to double the label.