Image source: NVIDIA.

NVIDIA Corporation (NVDA 1.85%) just reported fourth-quarter results, beating analyst estimates by a wide margin. NVIDIA shares jumped as much as 6% in after-hours trading action.

Non-GAAP earnings of $0.32 per share was a 9% year-over-year decline, but analysts would have settled for $0.18 per share. On the top line, Street firms expected a 5% year-over-year decline, but NVIDIA delivered a 3% sales surge instead.

"Quarterly revenue came in well above our outlook, driven by PC gaming, capping an outstanding year for our GPU business," said NVIDIA CEO Jen-Hsun Huang in a prepared statement.

In a separate document, NVIDIA showed sales of the mobile Tegra processor line plunging 37% year over year, but the much larger graphics division delivered a 14% revenue surge. Notebook graphics processors "declined slightly" but graphics cards for desktop PCs more than made up for that weakness.

Looking ahead, NVIDIA set first-quarter revenue targets around $1.05 billion. The expenses outlined in this guidance work out to non-GAAP earnings of roughly $0.22 per share. Analysts were looking for adjusted earnings of $0.13 per share on $1.0 billion in first-quarter sales.