Question 1

Will the Intel Arc A770 bottleneck the Intel Core i5-12400F?

Accepted Answer

The Intel Core i5-12400F + Intel Arc A770 pairing is rated Grade A for 1440p gaming with a recommended 550W PSU. Resolution-by-resolution: 1080p: balanced, 1440p: balanced, 4K: balanced. CPU and GPU bottleneck verdicts depend on resolution — a pairing that is CPU-bound at 1080p is often perfectly balanced at 4K because the GPU does more work per frame as pixel count increases.

Question 2

What PSU do I need for a Intel Core i5-12400F + Intel Arc A770 build?

Accepted Answer

For a Intel Core i5-12400F (65W TDP) paired with a Intel Arc A770 (225W TDP), we recommend a 550W power supply at minimum. This includes 40% headroom over the parts' combined TDP plus 100W for the motherboard, RAM, fans, and storage.

Intel Core i5-12400F + Intel Arc A770

Intel Core i5-12400F

Intel Arc A770

The same pair gives a different answer at 1080p, 1440p, and 4K.

Expected frame rates in 10 popular games.