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Dell 0XD184,Dell PU556 [Dec. 22nd, 2011|08:21 am]
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The 15.6 inch screen comes from Samsung and is called 156AT05-T02. Dell 0XD184It has the rather low resolution of 1366x768 pixels and is also reflective. Thus, the specifications won't bring any surprises. The brightness on the lower edge is still impressive with 220 cd/m2. But it decreases to 185 cd/m2 upwards and to the sides. Consequently, the brightness is distributed acceptably with 84%. The average brightness of 206 cd/m2 is the least that can be expected of a screen.Dell PU556


The screen still allows a brightness of 1.16 cd/m2 to pass through when it's black. This results in a moderate contrast of 182:1. That and the screen's poor brightness result in matt and faded colors that can't be improved by the smooth screen surface, either. This isn't noticed particularly adversely when typing, but it can really ruin the fun of watching movies or slide shows.Dell WR053


The consumer screen from Samsung doesn't come close to covering professional color spectrums. It fails in sRGB as well as the even more demanding AdobeRGB. But that is only of interest for graphic designers and photographers and shouldn't be that important for most users.Dell 312-0567


Toshiba Satellite L750 vs. AdobeRGBThe screen partly can't display all content satisfactory in very bright rooms or outdoors in daylight. Working with the notebook gets very difficult because of the moderate brightness and the reflective surface. The notebook can hardly be used in bright sunlight.Dell 0WR053


Viewing angles: Toshiba Satellite L750-16W The Samsung screen also quickly proves to be a low-cost consumer display looking at the viewing angles. While the colors can still be seen horizontally, they fade extremely when looking down on the screen. When looking up, it dims intensely and the colors invert tremendously. Dell PU563


The Toshiba Satellite L750/755 is available in many various configurations. Processor options range from the entry level Intel Core i3 2330M, the midrange processors Core i5 2410M and 2430M, up to the high performance Intel Core i7 2670QM. Intel's integrated HD Graphics 3000 or Nvidia's entry level graphics cards, GeForce GT 520M or the GeForce GT 525M can be selected as the graphics solution.Moreover, Toshiba advertises a Blu-Ray drive on its homepage that isn't available in any model of the range until now.Dell 312-0543


An Intel Core i5 2430M and an Nvidia GeForce GT 525M is installed in our Satellite L750-16W. Regrettably, Toshiba doesn't implement Nvidia's Optimus Technology, which activates the Intel HD Graphics 3000 integrated in the processor during undemanding graphic tasks and thus saves energy. Therefore, the HD Graphics is permanently disabled while the GeForce GT 525M has to calculate even the most basic tasks and unfortunately increases the power consumption a bit. More about that in Battery Life.Dell 312-0584


The memory solutions are designed generously. The hard disk has an unformatted memory capacity of 750 GB and rotates with a faster 7200 revolutions per minute. The main memory is a fast 8 GB DDR3 RAM which clocks with fast 1333 MHz in Dual Channel Mode. Dell 451-10516


The selected processor, Intel Core i5 2430M, is located in the upper midrange. It has a default clock of 2.4 GHz and can reduce the clock to 800 MHz in idle. It's most important feature is Turbo Boost 2.0. It enables the processor to overclock up to 3 GHz when high performance is required and gives it a significant performance advantage.Dell FT080


Cinebench R11.5 assesses the CPU's performance by rendering a 3D scene. There aren't any surprises here. The Satellite achieves the same score as other, similar notebooks with an Intel Core i5 2430M, for example the Samsung Series 7 700Z5A, which however has a much stronger graphics card.The full capacity isn't available on battery power. The Satellite only manages 2.42 points rather than 2.66 points without an external power source in Cinebench R11.5.Dell FT092


PCMark from Futuremark calculates an index for each demand made on the computer and then combines them to a total score. It provides information on the performance of the entire system. The notebook unexpectedly scores a lot worse than expected here. Despite the strong single components, the Satellite L750 is clearly inferior to the Dell Inspiron 14z that has the same processor, but a weaker hard disk and no dedicated graphics card.Dell KX117


Dell's Inspiron doesn't apply the maximum clock of 2.8 GHz, but it runs stably with 2.6-2.7 GHz. The Satellite is defeated here. Although the feared throttling doesn't occur at first, the clock partly drops below the default clock of 2.4 GHz. This poor processor performance also has an impact on the rating of the overall system.Dell NR433


5.7Windows 7 Experience IndexProcessorCalculations per second6.9Memory (RAM)Memory operations per second7.4GraphicsDesktop performance for Windows Aero5.7Gaming graphics3D business and gaming graphics6.5Primary hard diskDisk data transfer rate5.9Dell WW116


Toshiba relies on an own creation for the hard disk. The installed mass memory is called MK7575GSX and can store a data capacity of 750 GB. The magnetic disk rotates with 7200 revolutions per minute, which consequently results in a faster HDD performance. The average transfer rate of 80 MB/s is impressive, although current SSDs have a considerably higher performance and a much lower access rate. Dell 312-0427


The built-in Nvidia GeForce GT 525M is located in the upper entry-level field. It manages approximately twice as many points as the integrated solution, Intel HD Graphics 3000, and is clearly below the performance of the popular GeForce GT 540M in 3DMark Vantage. More comparisons can be made in our graphics card benchmark chart.Dell 312-0428

The Toshiba L750 is always at the lower end of comparably equipped notebooks in the 3D benchmark tests that we executed. The device apparently can't exploit the maximum of the installed hardware here, either.


The graphics card is only suitable for playing current computer games with low requirements.Dell 312-0461 In Battlefield: Bad Company 2, the resolution and other features have to be set to the lowest level so that the game runs just smoothly. The first person shooter isn't much fun to play in medium settings. Although the average refresh rate is 27 frames per second, the rate dropped to a very jerky 7 fps in an underwater scene. Then again, DIRT 3 could still be played well even in medium settings. Fans of the latest games should nevertheless turn to at least a GT 540M graphics solution.Dell 451-10339


The Toshiba Satellite L750 isn't really annoying in idle, but it's audible with a permanent hum. The hard disk remains pleasantly quiet despite its fast speeds and doesn't drown out the fan's noises. The optical drive can come to the fore when running, but it's not yet unduly annoying. The fan gets clearly audible during load, but the noise development is still within an acceptable range.Dell PD942


The notebook stays very cool in idle. The notebook doesn't heat up noticeably anywhere with a maximum of 28°C. Thus, it's possible to work comfortably with the notebook on the lap. The Satellite selectively heats up significantly during load and reaches a very warm 42°C on the bottom. The notebook's temperature doesn't increase at all in other places and remains below 30°C. Nevertheless, it shouldn't be used on the lap together with demanding tasks.Dell PD945


The processor and graphics card are loaded to full capacity for at least an hour in the stress test. This allows us to see how the notebook deals with very high load and if the Intel Core i5 manages to overclock to 3 GHz.Dell PD946


Regrettably, the Toshiba Satellite is disappointing in this situation. After starting FurMark and Prime95, the processor's clock rate nosedives from 2.8 GHz to very slow 800 MHz within a few seconds. The Satellite only manages very poor 0.75 points rather than 2.66 points in Cinebench R11.5. This phenomenon is called throttling and is a software-related limitation of the CPU rate during high power consumption. Dell RD850


It is to prevent the notebook from getting too hot, or over-exploiting the power capacity. The first can be excluded because neither the CPU nor the GPU exceed a temperature of 70°C. This is very low for a loaded chip. Thus, the ill has to be looked for in the insufficient power supply (75W power adapter). Dell RD857


After throttling sets in, the laptop has to be rebooted so that the full power is available again. When only the CPU is loaded, for example by Prime95, the notebook can process stably with 2.8 GHz. The same applies when only the GPU is loaded. This problem only turns up when both units run on full capacity and should therefore not often be an issue during practical use.Dell RD859


Consumer notebook speakers are often sported massively and not every sticker keeps its promise. The Japanese manufacturer, Onkyo, is responsible for these speakers.

Unfortunately, as so often the case in laptops, there is absolutely no bass. In return, the trebles and mids sound all the better. The good sound is surprising. The Satellite doesn't distort the usually critical high pitches even in high volume.Dell TD344


The power consumption isn't the notebook's biggest strength. Since the Optimus Technology hasn't been enabled by the manufacturer, the Nvidia graphics card also works in idle. Dell TD347As a result the idle rate of 12 watts is rather high despite an energy efficient processor. Notebooks with Optimus manage a power consumption of less than 8 watts in idle. The notebook even consumes power like "a big one" during load. The Satellite L750 could be mistaken for a basic gaming notebook in view of 78 watts. This energy hunger is inappropriate in relation to the available performance.Dell TD349


A 48 Wh lithium ion battery is used in the Satellite L750. The laptop manages a runtime of good four and a half hours with that. This battery life can only be achieved with disabled network adapters, the lowest screen brightness level and a basic text, such as displaying a text document.Dell UD260


Our WLAN surf test, where we simulate surfing on websites in medium brightness, is a lot more realistic. The notebook lasts for 220 minutes, which should be enough for most users.Dell UD264


The Satellite only lasts for 127 minutes when playing a DVD in maximum display brightness. This is enough for a 90 minute children's movie, but it gets quite tight when watching a longer movie, such as Harry Potter and the Deathly Hallows - Part 2, with a runtime of only 125 minutes.Dell UD265

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