Dell Inspiron 15 Review

by Reads (331,719)
  • Pros

    • Good looks
    • Easy to upgrade all components
    • Great touchpad buttons
  • Cons

    • Screen lid doesn't stay closed
    • Battery life could be better

by Kevin O’Brien

The Inspiron 15 is the back-to-basics mainstream 15″ notebook from Dell, offering good performance at a value price. Consumers can configure this notebook with basic lid configurations, or go all out with the customized lids from the Dell Design Studio for an additional cost. If you are just looking for a basic system to meet your needs at school or home, read our full review of the Dell Inspiron 15.

Our Dell Inspiron 15 Configuration:

  • Intel Pentium Dual-Core T4200 2.00GHz Processor (1MB L2 cache, 800MHz FSB)
  • Microsoft Windows Vista Home Basic (32-bit)
  • 15.6″ 1366×768 16:9 Glossy Display
  • Intel X4500 Integrated Graphics
  • 3GB DDR2 800MHz RAM (2GB + 1GB)
  • 320GB 5400RPM HDD
  • 8X CD / DVD Burner (Dual Layer DVD+/-R Drive)
  • Intel 5100AGN WiFi and 10/100 Ethernet
  • 6-Cell 48WHr Battery
  • Limited 1-year standard parts and labor warranty with in-home service
  • Dimensions: 14.7 x 9.6″ x 1.02″
  • Weight: 5.8lbs
  • Price as configured: $549

Dell Inspiron 15

Build and Design
The design of the of the Inspiron 15 is pretty good for a value notebook, offering a smooth rounded profile and clean lines. While our model doesn’t offer one of the most expensive custom lid designs, it gives you an idea of what you would get if you chose the current “FastTrack” shipping option on this model. The only design element of the notebook that doesn’t blend well with the stock matte lid finish is the fully glossy interior. The screen, screen bezel, keyboard trim, and palmrest are all glossy black inside the notebook, which doesn’t always play well with reflections or smudges. If you keep it clean it looks great, but at times it did get annoying if you were sitting with your back to bright windows where the entire notebook turned into a mirror. Overall, if you don’t mind the glossy surface the design of the Inspiron 15 is pretty nice compared to other budget models on the market.

Dell Inspiron 15

The Dell Inspiron 15 has average build quality compared to other value-oriented models we have reviewed. The plastics used held up well in our tests, but did show signs of flexing and creaking in spots. The screen lid and palmrest were the two main areas which exhibited flex, with the palmrest giving off creaking sounds if you squeezed it in the right spot. The screen lid on the Inspiron 15 uses a latch-less hinge design which keeps it held down using friction and gravity. You need two hands to open it up with it placed horizontally on your desk, but if you were carrying it around under your arm it did have a tendency to open up about a centimeter or so. In most latch-less designs we like to see a secondary holding method, such as a magnet or spring loaded hinge to keep it shut when held in any direction. The plastics used in the construction of the chassis feel pretty durable and should hold up well over time, but the glossy finish around the keyboard and palmrest did have a tendency to show fine scratches.

Dell gives you easy access to all internal components of the notebook. This includes the system memory, hard drive, and wireless card, as well as the processor if you are so inclined. Underneath the main access panel (which includes handy circlips around each screw so they don’t go flying) is the RAM, wireless card, and processor with heatsink. The hard drive and optical drive are removable through individual sections with their own retaining screws. Oddly enough Dell doesn’t have any “warranty void if removed” stickers anywhere, including the screws around the processor.

Dell Inspiron 15

Screen and Speakers
The glossy 1366×768 display on the Inspiron 15 is average compared to other panels we have seen. Colors and contrast are excellent thanks to the glossy surface, which tends to scatter less light than the equivalent matte surface. Backlight levels could be better on the high-end of the spectrum, but we found it adequate for most conditions, including a bright off setting, underneath shop lighting, and or just sitting on your couch enjoying a show. Viewing angles could have been better, with color distortion found in both the vertical and horizontal extremes. Colors started to shift when titling the screen 20 degrees forward or back. Horizontal viewing angles were better, only showing color shifting past 45 degrees.

Dell Inspiron 15 Dell Inspiron 15
Dell Inspiron 15 Dell Inspiron 15

The included speakers were good compared to other budget models, with clear high-range audio, but little low or midrange coming through. Peak volume levels were enough to fill a small room, but if you plan on sharing a movie inside a dorm room, it might be wise to connect the laptop to a set of external surround speakers. For enjoying music or movies by yourself, headphones are still a must-have accessory.

Keyboard and Touchpad
The Inspiron 15 keyboard is very comfortable to type on, offering excellent support and a very good layout. The keys are of normal size with a light matte finish for excellent traction. Spacing is spot on compared to my ThinkPad keyboard, so no adjusting was necessary. Support underneath the keyboard is excellent, with no flex anywhere, even under very strong pressure. Individual key action is smooth with a very quiet “click” emitted when a key is fully pressed. It might not be the quietest keyboard I have used, but it still ranks up there. The function key layout is interesting compared to other notebook models, with use of the function keys backwards. Normally to adjust the brightness or volume, or toggle the WiFi settings you press the FN-key, then the appropriate function key. Dell went with a setup where the secondary command is now primary. To put it another way, if you want to hit F5 to refresh a webpage, you now need to press FN+ the brightness up key. For normal uses this might be more intuitive, but for advanced users who love using commands like window close, page refresh, full screen, and other function key commands, it is more confusing and complex.

Dell Inspiron 15

The touchpad is a large Dell-specific model, with a nicely textured matte finish that gives excellent traction. Speed and accuracy were pretty good, with barely any lag noticed in our tests. We did encounter one situation where a quick tap and select movement wouldn’t release the selection box, but that situation didn’t come up frequently. The touchpad might not have been as nice to use as a Synaptics model, but for the notebook’s intended market it should be fine. The touchpad buttons were a big surprise to see on a budget model. They provide excellent feedback and have a deep throw, instead of standard “clicky” touchpad buttons.

Dell Inspiron 15

Ports and Features
Port selection on the Dell Inspiron 15 is lacking compared to notebooks of the same size, including only three USB ports, VGA, LAN, and an ExpressCard/34 slot. HDMI would have been greatly appreciated, since it would allow a user to hook the notebook up to a home theater to play movies, whereas now you would need to have a TV that supports VGA in, and still be limited to analog audio out. For quickly copying images off a memory card, there is a spring loaded SDHC-compatible memory slot on the front of the notebook. eSATA would have been another nice touch, but it is hard enough to find it on some high-end notebooks.

Dell Inspiron 15
Front: Audio jacks, SDHC-card slot

Dell Inspiron 15
Rear: Battery, CPU exhaust vent

Dell Inspiron 15
Left: Kensington lock slot, 2 USB, VGA, LAN

Dell Inspiron 15
Right: ExpressCard/34, optical drive, 1 USB

System performance was below average when compared to other consumer notebooks, but that was heaviliy dependant on the low-end T4200 Intel Dual-Core Pentium our configuration included. While it might not be able to play the latest games, users will not have any problems typing documents, watching HD movies, ripping music through iTunes, or editing photos. Boot times were still quick, only taking about 35 seconds to get to a ready desktop screen from a full shutdown. The included 320GB hard drive offered plenty of storage space for movies, music, and photos, and even though it is only 5400RPM, it is still quick for daily use. Overall this system falls toward the bottom of our list in terms of performance, but if you were to upgrade the processor, speeds across the board would get a nice boost.

wPrime processor comparison results (lower scores mean better performance):

Dell Studio 15 (1555) (Core 2 Duo P8600 @ 2.4GHz) 32.995 seconds
Toshiba Satellite A355 (Core 2 Duo P7450 @ 2.16GHz) 35.848 seconds
Lenovo IdeaPad Y530 (Core 2 Duo P7350 @ 2.0GHz) 38.455 seconds
Lenovo G530 (Intel Pentium Dual-Core T3400 @ 2.16GHz) 38.470 seconds
Dell Inspiron 15 (Intel Pentium Dual-Core T4200 @ 2.00GHz) 38.768 seconds
HP Pavilion dv5z (Turion X2 Ultra ZM-80 @ 2.1GHz)
39.745 seconds
Dell Studio 15 (1535) (Core 2 Duo T5750 @ 2.0GHz) 41.246 seconds


PCMark05 measures overall system performance (higher scores mean better performance):

Toshiba Satellite A355 (2.16GHz Intel P7450, ATI Radeon HD 3650 512MB) 5,842 PCMarks
Dell Studio 15 (1555) (2.4GHz Intel P8600, ATI Radeon HD 4570 256MB) 5,731 PCMarks
Lenovo IdeaPad Y530 (2.0GHz Intel P7350, Nvidia 9300M 256MB) 4,844 PCMarks
Lenovo G530 (2.16GHz Intel Pentium Dual-Core T3400, Intel Intel 4500MHD) 4,110 PCMarks
Dell Inspiron 15 (2.00GHz Intel Pentium Dual-Core T4200, Intel X4500) 4,068 PCMarks
Dell Studio 15 (1535) (2.0GHz Intel T5750, Intel X3100) 3,998 PCMarks
HP Pavilion dv5z (2.1GHz Turion X2 Ultra ZM-80, ATI Radeon HD 3200) 3,994 PCMarks


3DMark06 measures video and gaming performance (higher scores mean better performance):

Dell Studio 15 (1555) (2.4GHz Intel P8600, ATI Radeon HD 4570 256MB) 4,189 3DMarks
Toshiba Satellite A355 (2.16GHz Intel P7450, ATI Radeon HD 3650 512MB) 4,084 3DMarks
Lenovo IdeaPad Y530 (2.0GHz Intel P7350, Nvidia 9300M 256MB) 1,833 3DMarks
HP Pavilion dv5z (2.1GHz Turion X2 Ultra ZM-80, ATI Radeon HD 3200) 1,599 3DMarks
Dell Inspiron 15 (2.00GHz Intel Pentium Dual-Core T4200, Intel X4500) 784 3DMarks
Lenovo G530 (2.16GHz Intel Pentium Dual-Core T3400, Intel Intel 4500MHD)
730 3DMarks
Dell Studio 15 (1535) (2.0GHz Intel T5750, Intel X3100) 493 3DMarks

All of the 3DMark06 scores for all of the systems listed above were run at 1280 x 800 (for screens with a 16:10 ratio) or 1280 x 768 resolution (for screens with 16:9).

HDTune storage drive performance results:
Dell Inspiron 15


Heat and Noise
System temperatures stayed well within our “lap-friendly” range, with only one hot spot being the touchpad. On battery power with nothing significant running in the background the system barely climbed above room temp. Noise levels remained low during our tests, with only a few blips of higher fan speeds, before the fan resumed its silent/off fan state. After the notebook had been running for the good part of a day plugged in and being stressed moments earlier, the system still showed no signs of running abnormally hot in our temperature readings shown below in degrees Fahrenheit.

Battery life was below average compared to other notebooks, and we had expected slightly better results from the 48Wh battery Dell included with it. In our tests with screen brightness set to 70%, wireless active, and Vista set to the Balanced profile the Inspiron stayed on for 2 hours and 38 minutes. Power consumption varied between 12 and 16 watts during our battery test. A more efficient processor and power management system could have yielded much better results. To put this in perspective, the ThinkPad T400 with an Intel Core 2 Duo T9600 processor and X4500 graphics consumed as little as 8.5 watts of power.

The Dell Inspiron 15 is a decent mid-size budget notebook with good looks and average build quality. The keyboard is very comfortable to type on with excellent support, but has a weird function key layout that may annoy more advanced users. The touchpad offers an excellent surface texture with buttons that have great feedback and throw distance. Basic configurations start as low as $379, making it a reasonable choice if you are working on a budget. Overall it might not be the best notebook on the market, but it still offers great value and a reasonably attractive design.


  • Good looks
  • Easy to upgrade all components
  • Good cooling system
  • Great touchpad buttons


  • Screen lid doesn’t stay closed with the notebook held vertically
  • Battery life could be better



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