Nvidia’s next-gen graphics were in tight secrecy – until now.Acer’s Kepler-equipped Aspire Timeline Ultra M3 notebook has already made its way onto the market in some parts of the world. In fact, there are a couple of reviews out already. PC Perspective got coverage of the M3 notebook and its GeForce GT 640M GPU. Still, most of the details about the chip remain a closely guarded secret, despite it being in production in a review unit.
From what we understand, the GeForce GT 640M has 384 ALUs, four times the number in the GT 540M it will presumably replace. Kepler seems more dense than Fermi just based on core counts, of course. Previous ALUs ran at 1.34GHz while the 640M is clocked a little lower, at 1.25GHz. Both chips sport 128-bit memory interfaces and run their RAM at 900MHz. In Acer’s new notebook, the 640M is joined by an even gigabyte of video memory.
PC Perspective says the GeForce GT 640M is designed to offer a “playable experience at 1366×768 with high detail settings in all of the most demanding titles released last year.” The site’s benchmarks seem to validate that claim. The site made use of Battlefield 3, Batman: Arkham City, Skyrim, and Deus Ex: Human Revolution. Those games were pushing average frame rates in the 37-74 FPS range in close to ultra settings. Ultimately, it’s still hard to tell how the new GeForce really measures up to other mobile GPUs.
The fact that Acer’s Ultra M3 is thin enough to fit into the ultrabook category while still using Kelper is impressive in itself. The reviewer also said the system also gets pretty toasty, with the center bottom panel reaching 128°F (53°C) under heavy gaming. The slim chassis may be more to blame than the GPU there, because the Timeline Ultra actually looks to have quite good battery life overall.
Via »PC Perspective