Lenovo IdeaPad U300s Ultrabook Review

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Cinebench and Gaming

Maxon's Cinebench R11.5 benchmark is based on the company's Cinema 4D software used for 3D content creation and tests both the CPU and GPU in separate benchmark runs. On the CPU side, Cinebench renders a photorealistic 3D scene by tapping into up to 64 processing threads (CPU) to process more than 300,000 total polygons, while the GPU benchmark measures graphics performance by manipulating nearly 1 million polygons and huge amounts of textures.

Cinebench R11.5 64-bit
3D Rendering Performance on the CPU

In the CPU component of this test, the U300s is right in line with the other ultrabooks in its class.  However,  in the OpenGL test, which excersizes the graphics core in its Core i7 processor, we see that memory bandwidth issue cropping up again.  Conversely, the U300 still manages to outpace Toshiba's lower cost offering and doesn't trail the other ultrabooks all that much.

Far Cry 2 and Left 4 Dead 2 Gaming Tests
DX 9 and DX10 Light Duty Gaming Performance


FarCry 2

Like the original, FarCry 2 is one of the more visually impressive games to be released on the PC to date. Courtesy of the Dunia game engine developed by Ubisoft, FarCry 2's game-play is enhanced by advanced environment physics, destructible terrain, high resolution textures, complex shaders, realistic dynamic lighting, and motion-captured animations. We benchmarked the test systems in this article with the FarCry 2 benchmark tool using one of the built-in demo runs recorded in the "Ranch" map.

If you're considering an ultrabook primarily for gaming on the go, you had best reconsider.  That said, it's not like a little light duty action is completely out of the question.  The U300s trails the Asus and Dell machines by a hair, again likely due to that memory bandwidth issue.  Again, however, the difference is negligible and at these resolution and image quality settings, none of the machines shown here are putting up playable frame rates.  Drop the resolution and/or IQ settings and things should smoother out a bit more.

Left 4 Dead 2, though it has reasonably good visuals, is a bit easier on the graphics subsystem.  This was a game engine that the Lenovo IdeaPad U300s could handle a bit better as well.

Here we see playable frame rates right up through 1280X720 and almost playable at native res of the U300s panel.  We only had reference numbers from the Dell XPS13 but, as you can see, Dell's advantage is on the order of about 10% or so.

Again however, we're certain you're not as concerned with a lot of gaming results with an ultrabook, so we'll move on to something more critical, battery life performance.

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