Like other Ultrabooks, the Portégé Z935 has no discrete graphics card. Instead, it relies entirely on Intel's integrated HD graphics chip, which means that graphics on the Portégé Z935 are just mediocre. In Crysis 2, the Portégé Z935 managed frame rates of between 12.1 frames per second (high-quality graphics, 1366-by-768-pixel resolution) and 25.6 fps (low-quality graphics, 800-by-600-pixel resolution). The posted a similar performance, with frame rates of between 11.8 and 26.8 fps on the same tests. The business-oriented , which is an ultraportable but not an Ultrabook, has slightly better graphics performance.

Battery life on the Portégé Z935 is above average for the Ultrabook category. Intel's Ultrabook specifications require at least 5 hours of battery life, but we managed to eke 6 hours, 36 minutes out of the Z935 in our lab tests.

Toshiba touts the Portégé Z935 as its thinnest and lightest 13-inch laptop--ever. This appears to be an accurate description, though it should be noted that the company makes concessions to maintain the Portégé Z935's ultralight construction.

The Portégé Z935 is just 0.63 inches thick at its thickest, and weighs a mere 2.47 pounds sans accessories. By comparison, Apple's 13-inch MacBook Air is 0.68 inches thick at its thickest, and nearly a half-pound heavier at 2.96 pounds sans accessories.