Intel Corp. boosted its outlook for the third quarter on Friday, the latest sign that demand for some categories of personal computers has improved.

Stronger buying activity seems concentrated in high-end laptops and gaming PCs, analysts and industry executives said, while demand for entry-level PCs remains weak.

Intel, which supplies microprocessor chips used in close to 90% of all PCs, said it now expects third-quarter revenue of $15.6 billion, plus or minus $300 million, up from a previous range of $14.9 billion, plus or minus $500 million. The company also boosted its gross margin forecast by two percentage points.

Even at the bottom of its range, the new revenue forecast exceeds last year’s third-quarter total of $14.47 billion.

Intel attributed the improved revenue primarily to moves by hardware makers to replenish their inventories of finished PCs and components. “The company is also seeing some signs of improving PC demand,” Intel said in a press release.