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Battery Life
Unfortunately the NP900X3A lagged in this series of tests, but it had an inherent
disadvantage. With its slim form factor, Samsung could only pack in a 6-cell
58 Wh battery, compared to the 63 Wh unit of the Lenovo and monstrous 84 Wh
batteries in the Asus UL series laptops.
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Test Results: Battery Life
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Activity
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Web Browsing
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XVID Playback
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H.264 Playback
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Asus UL30A
(84 Wh)
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9:44
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6:52
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5:52
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Asus UL80Vt
(84 Wh)
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9:11
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7:19
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5:24
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ThinkPad Edge 13 (63 Wh)
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6:22
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5:50
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4:35
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Samsung NP900X3A
(58 Wh)
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5:40
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5:13
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4:43
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As we established earlier , AC power consumption was similar to the Edge 13,
so it is unsurprising that the NP900X3A gave out 12% earlier in the web browsing
and XVID tests. Playing H.264 video, the NP900X3A outlasted the ThinkPad by
3%, though, due to Sandy Bridge GPU's improved H.264 hardware acceleration.
Performance
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Test Results: Benchmarks
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Model
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ThinkPad
Edge 13
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Asus
UL30A
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Asus
UL80Vt
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Samsung NP900X3A
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CPU
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Core 2 Duo 1.3 GHz
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Core 2 Duo 1.33 GHz
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Core 2 Duo 1.73 GHz*
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Core i5 1.4 GHz
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Boot-up
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1:25
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0:57
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1:13
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0:26
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NOD32
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11:30
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11:05
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8:46
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6:29
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WinRAR
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5:35
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5:27
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3:35
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3:14
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iTunes
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8:04
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8:02
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6:13
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5:58
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TMPGEnc
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10:47
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10:22
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8:10
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6:43
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PCMark05
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3196
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3452
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3656
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8002
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*UL80Vt processor overclocked.
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Intel's older CULV Core 2 Duos may claim superior energy efficiency, but when
it comes to performance they do not hold up against a Sandy Bridge Core i5.
Despite being clocked at 1.4 GHz, the NP900X3A's i5-2537M beat the Asus UL80Vt's
overclocked Core 2 Duo SU7300 (1.73 GHz) in all of our benchmarks. While the
TurboBoost feature helped in single-threaded operation, Samsung's ultra portable
still scored a decisive victory in our multithreaded TMPGEnc video encoding
test. The 256GB SSD was key to its impressive boot time of just 26 seconds.
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Test Results: 3D Benchmarks
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Model
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Samsung NP900X3A
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i5-661 / H55 Desktop
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i3-2100 / H67 Desktop
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Lost Planet 2 (1360x768, low)
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12 fps
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13 fps
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17 fps
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H.A.W.X. 2 (1366x768, low)
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16 fps
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24 fps
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26 fps
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Intel did well to shake off the stigma of slow integrated graphics with the
HD 3000 chip in their Sandy Bridge desktop processors. HD 3000, found in their
overclocking friendly "K" model CPUs, competed with entry level discrete
video cards like the Radeon HD 5450. Unfortunately the mobile version isn't
nearly as formidable due to a lower core clock speed (a paltry 350 MHz according
to Intel). As a result the NP900X3A's gaming performance is poor, even eclipsed
by the desktop version of Intel's HD 2000 graphics (HD 3000's slower sibling)
and the previous generation Intel GMA HD graphics found on the Lynnfield based
Core i5-661.
Running at the laptop's native resolution with all details on low, it managed
an average of only 12 fps in the Lost Planet 2 standalone benchmark, and 16
fps in H.A.W.X. 2. Gameplay isn't slow enough to be described as a slideshow,
but it's woefully inadequate for a serious gamer. Discrete or discrete-class
graphics (as AMD refers to the graphics chips found on their new quad core mobile
APUs) are still required for smooth gaming experience.
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