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Review Dell Inspiron 1525 Notebook

More than just Office.

The Dell Insprion 1525 scores not only points in typical aspects important for office notebooks, but also regarding a number of multimedia features. Besides a good workmanship, an user-friendly keyboard and a clear design, it also offers, e.g., an up-to-date HMDI port. Inside a Dual Core processor by Intel and two GB RAM ensure sufficient performance.

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The Dell Inspiron 1525 looks anything, but boring. Twelve differently designed lids bring a welcome variety in the life with notebooks. Decent 'matte black', 'Flamingo pink' and colourful patterns, like the 'Chill', are available. So, you can be sure to find one which you like. The reviewed notebook in black and white 'Commotion' design attracted the attention of colleagues, friends, and passer-bys at once. They looked interested and thrilled.

Inside the Dell Inspiron 1525 is elegantly, and clearly designed. The continuous dark grey and silver plastic looks due to some small metal applications and seamlessly integrated speakers, located above the keyboard, more vivid. A nice feature: The multimedia bar welcomes the user with an elegant flare upon power-on.

Because of this, it does hardly get obvious that the Dell Inspiron 1525 does not belong to the thinnest notebooks available nowadays. After all the height of this 15.4-inch notebooks is 4.1 cm. Even the thinnest part was as high as 3.1 cm. In return, it weighs just 2.8 kg including battery, which is alright for a notebook of this category. The  mains adapter weighs 364 g.

The workmanship of this Dell notebook appeared to be good at once. Despite some smaller weaknesses regarding gaps and finish, the advantages of the flexural rigid case outweigh the disadvantages. Even if you apply much force the palm rest area does hardly yield. Creaking noises can, if at all, only be triggered near the optical drive. Regarding haptics the used materials are alright. They feel nice to the touch, and their rough surfaces especially at the palm rest area, gives firm support and is insensible to dirt and smaller scratches. That's exactly the way it should.

However, the display design is not that good. A transport hook is missing. The display is kept closed solely by its own weight and the tractive power of the two easily moving hinges - an arguable design. If we close the Dell Inspiron 1525, turn it upside down or onto one of its flanks, and hold it only at the base unit, there is immediately a gap of nearly two cm. So, dirt or even sharp objects can easily penetrate in between, if you transport this notebook. Although this does not look so good, Dell should rather use  a small transport hook with sliding switch again. Besides the missing transport hook, the workmanship and the haptics of the Dell Inspiron 1525 are in general good.

Interface Equipment

Regarding interface equipment this Dell notebook is even better than some multimedia laptops. Besides four USB ports, Firewire, and a good webcam inside the display frame, and a card reader, it scores especially points by its digital HDMI out. LCD- TVs and flat screens, the latter mostly only with a proper adapter, can be attached within seconds and ensure a high-quality picture. A small remote control even increases user-friendliness. Analogue VGA and S-Video out are also available. However, a  digital sound out is missing.

The Dell Inspiron 1525 connects to the Internet either via LAN or WLAN or via out-dated modem connection. Bluetooth and HSDPA are available as options - the latter is mostly only provided by expensive business notebooks.

Front Side: Audio, Card Reader
Front Side: Audio, Card Reader
Left Side: Kensington Lock, Power Connector 2x USB, VGA, LAN, Modem, HDMI, Firewire
Left Side: Kensington Lock, Power Connector 2x USB, VGA, LAN, Modem, HDMI, Firewire
Back Side: Battery
Back Side: Battery
Right Side: ExpressCard/54, DVD Burner, S-Video, 2x USB, LAN, Kensington Lock
Right Side: ExpressCard/54, DVD Burner, S-Video, 2x USB, LAN, Kensington Lock

Input Devices

The keyboard layout of the Dell Inspiron 1525 follows the usual standards and can, therefore, be intuitively used without problems. All keys are sufficiently big and located at the usual location. However, due to the thin plastic and their very smooth surface the keys do not appear to be that high quality than the ones of the more expensive Latitude notebooks. However, the key feedback is very good. All keys are attached tightly to the construction beneath them, which does not noticeably yield. So, the keyboard is overall ready for extensive typing.

The touch pad caused some problems during the review. In general it reacts precisely. Its size makes navigation without external mouse also easy for beginners. Unfortunately, it is sometimes tenacious. Especially if there is high load or the notebook is reactivated from stand-by the touch pad refuses to react for some seconds. Within the same period of time we didn't have any problems to move the mouse pointer with an external mouse - strange.

Keyboard of the Dell Inspiron 1525
Touch pad of the Dell Inspiron 1525
Touch Pad


Display Measurement
Colour Diagram

At the time of writing three different displays were available for the Dell Inspiron 1525. All of them are 15.4 inch displays, but differ from each other regarding resolution and surface. The reviewed notebook came with a  reflecting TrueLife-LCD with WXGA resolution (1280x800 pixel), which is a resolution typically used for notebooks of this category. According to Dell its advantages are basically  vivid colours and a good contrast.

The first statement proved to be true during our review. At the first glance the reference pictures appeared to be luscious, and bright. Typically, the quality of the picture depends more on the viewing angle vertically. However, it is still within the average range of this notebook category.

Distribution of brightness
Maximum: 257.8 cd/m² (Nits) Average: 237.3 cd/m²
Brightness Distribution: 86 %
Contrast: 180:1 (Black: 1.4 cd/m²)

Outdoors this LCD performed not so good. First of all reflections had a negative impact on the picture quality. Secondly, the display nearly permanently see-saws when typing with the built-in keyboard, which makes the reflections even jump. So, they annoy even more. However, In the shade you can comfortably work with this notebook. If you do not want to retouch pictures brightness and contrast are sufficient.

The measurement results were also rather good. The maximum brightness of 237.3 cd/m² is very good. The illumination appears to be rather even. The only weakness was uncovered with a black background picture, whereas the display backlight is too dominant, so, giving  a contrast ratio of only 183:1.

Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles
Dell Inspiron 1525 Viewing Angles


The Dell Inspiron 1525 is based on the current Santa Rosa technology by Intel. Depending on the configuration, selected in the on-line shop of Dell, a direct shipper, the clock rate of the Core-2-Duo or Celeron processor by Intel is either higher or lower. The reviewed notebook was equipped with a Core 2 Duo T5500 with 1,66 GHz clock rate and two MByte L2-Cache. Supported by two GByte DDR2-RAM and a 160 GByte hard disk the performance of this bundle is more than sufficient  for smooth work. However, if you try to retouch pictures, e.g., with Photoshop, it could be more powerful. However, this does not belong to the typical fields of operation of starter notebooks.

The benchmark results of the Dell Inspiron 1525 are throughout typical for this notebook category. In the PCMark05 benchmark it reached good 3600 points, the Cinebench R10 result was 3069 points. Because of the integrated video solution by Intel, the 3DMark benchmarks weren't that good. The newest of this series of benchmarks resulted in 536 points, which proves that current demanding computer games are not the intended field of operation of the Intel GMA X3100. Nearly 10 fps in Doom 3 also support the moderate performance regarding up-to-date games.

The performance of the hard disk did not meet our expectations.  Although the built-in 160 GByte hard disk is not one of the newest, if performed better in other notebooks. The best transfer rate was after a number of runs only 33.3 MByte/s and the access time 25 ms. Inside other notebooks the access time of an identical hard disk was very good 16.0 ms, the transfer rate nearly 34 MByte/s under same conditions – strange.

3DMark 2001SE Standard
4989 points
3DMark 03 Standard
1600 points
3DMark 05 Standard
837 points
3DMark 06 1280x800 Score
536 points
PCMark 05 Standard
3600 points
Cinebench R10
 Shading 32Bit556 Points
 Rendering Multiple CPUs 32Bit3069 Points
 Rendering Single 32Bit1660 Points
Doom 3
 1024x768Ultra, 0xAA, 0xAF8.2 fps
 800x600High, 0xAA, 0xAF9.8 fps
 640x480Medium, 0xAA, 0xAF9.9 fps
 640x480Low, 0xAA, 0xAF9.7 fps
160 GB - 5400 rpm
Transfer Rate Minimum: 21.2 MB/s
Transfer Rate Maximum: 43.1 MB/s
Transfer Rate Average: 33.3 MB/s
Access Time: 24.7 ms
Burst Rate: 91.9 MB/s
CPU Usage: 2.6 %



The Dell Inspiron 1525 is rather silent with usual work load . During non-demanding office work or browsing the world wide web, the fan does not run most of the time. Besides of a silent rustling of the hard disk the notebook is completely silent, if the fan is deactivated. Sometimes the silence is suddenly interrupted by the fan, which starts running in order to cool the notebook for a few second, and stops once the work is done for a longer time.  Although this is not really disturbing, the fan control could be more sensitive.

Once the load is higher, the fan runs permanently, whereas  its level is depending on the necessary cooling adjusted to the needs step by steps. Whilst the first few levels are still rather decent, the silent is gone, if full load persists and a noise level of up to 47.1 db(A) is reached. However, if you do not drive the notebook at its maximum for a longer time, e.g., by editing videos, you won't be affected by this.

Noise Level

32.1 / 37.8 / 40.2 dB(A)
34 dB(A)
37.5 / 46.4 dB(A)
42.7 / 47.1 dB(A)
  red to green bar
30 dB
40 dB(A)
50 dB(A)
min: dark, med: mid, max: light    (15 cm distance)


In general the temperature increase of the reviewed notebook did not cause any problems. Neither with office work nor under full load its surface temperature get uncomfortably hot. Even after two hours ran at full load the maximum temperature at the top side, measured in the middle of the keyboard was moderate, in more detail 36.4 degree Celsius. Under these extreme conditions the bottom side reaches a maximum of above 48 degree Celsius, exactly at the same location. Nevertheless, this is nothing to complain about, because it is clearly lower during standard office and multimedia work.

Max. Load
 31.8 °C
89 F
36.2 °C
97 F
31.2 °C
88 F
 33.6 °C
92 F
36.4 °C
98 F
32 °C
90 F
 31.6 °C
89 F
34.5 °C
94 F
31.6 °C
89 F
Maximum: 36.4 °C = 98 F
Average: 33.2 °C = 92 F
35.4 °C
96 F
34.7 °C
94 F
29.4 °C
85 F
37.8 °C
100 F
48.4 °C
119 F
32.8 °C
91 F
32.4 °C
90 F
44 °C
111 F
31.4 °C
89 F
Maximum: 48.4 °C = 119 F
Average: 36.3 °C = 97 F
Room Temperature 23.5 °C = 74 F
(±) The average temperature for the upper side under maximal load is 33.2 °C / 92 F, compared to the average of 29.5 °C / 85 F for the devices in the class Office.
(+) The maximum temperature on the upper side is 36.4 °C / 98 F, compared to the average of 34.2 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 48.4 °C / 119 F, compared to the average of 36.7 °C / 98 F
(+) The palmrests and touchpad are reaching skin temperature as a maximum (34.5 °C / 94.1 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (-6.8 °C / -12.2 F).


There are two small stereo speakers above the keyboard. Typical for this notebook category their sound is somewhat blurred, nothing special at all. The basses are hardly audible, In return they do not even blast, if the speakers are turned very loud.

Battery Runtime

The 6 cells battery of the reviewed notebook has a power output of 56 Wh. Depending on the load this is sufficient for one and a half to about four and a half hours unplugged work. Besides the load also the brightness of the display has a big impact on the battery runtime.  Whilst the battery is emptied by WLAN operation with maximum brightness in nearly two and a half hours, with energy saving settings a runtime of clearly above three hours is possible. In practice, i.e., running Office applications and such, the battery had to be recharged after about three hours.  Dell also offers a 85 Wh battery, which should enhance the battery runtime, for a low surcharge.

Power Consumption
Off / Standbydarklight 0 / 0 Watt
Idledarkmidlight 14.3 / 21.8 / 24.4 Watt
Load midlight 53.3 / 58.9 Watt
 color bar
Key: min: dark, med: mid, max: light        
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.
Battery Runtime
Idle (without WLAN, min brightness)
4h 39min
WiFi Surfing
2h 26min
1h 49min
Load (maximum brightness)
1h 9min


The Dell Inspiron 1525 proved to be a mature and reasonable general-purpose machine for office and multimedia applications in our review. A generally good workmanship, a stable case, and user-friendly input devices are besides many interfaces the advantages of this 15.4 inch notebooks. Four USB ports, a webcam, and also an up-to-date HDMI port are seldom provided by a notebook of this price category. The multimedia user interface, called Dell MediaDirect, the bright glare-type LCD and finally the remote control stretch the multimedia aspect of the reviewed notebook.

Due to a fast Core-2-Duo processor and two GB RAM this notebook is actually fit for multimedia applications. The Inspiron 1525 is even sufficiently powerful for watching high-resolution motion pictures from hard disk. However, it is definitely not designed for current 3D games, the integrated video chip by Intel is simply not powerful enough for this field of operation.

The design of the display without transport hook, the touch pad, which did not react all the time, and the loud fan under load could not convince in practice. Considering the good bundle and also the reasonable price these minor flaws are not extremely important.

At the time of writing the reviewed Dell Inspiron 1525 costed about 700 Euro without shipment. Typical Dell the prices offered in the on-line shop change frequently.

Dell Inspiron 1525
Dell Inspiron 1525
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Dell Inspiron 1525
Reviewed: Dell Inspiron 1525


Dell Inspiron 1525
2048 MB 
, DDR2 PC5300 667MHz
15.40 inch 16:10, 1280 x 800 pixel, glossy: yes
Intel GM965
160 GB - 5400 rpm, 160 GB 
, 5400 rpm, Seagate ST9160821AS
1 Express Card 54mm, 4 USB 2.0, 1 Firewire, 1 VGA, 1 HDMI, 1 S-Video, 1 Modem, 1 Kensington Lock, Audio Connections: headphones, microphone, Card Reader: 8in1
Marvell Yukon 88E8040 PCI-E (10/100MBit/s), Intel PRO/Wireless 3945ABG (a/b/g/), Bluetooth 56K V.92
Optical drive
height x width x depth (in mm): 3.1 x 35.7 x 24.7 ( = 0.12 x 1.41 x 0.97 in)
56 Wh Lithium-Ion, 11.1 V
Operating System
Microsoft Windows Vista Home Premium 32 Bit
Additional features
12 Months Warranty
2.79 kg ( = 98.41 oz / 6.15 pounds), Power Supply: 364 g ( = 12.84 oz / 0.8 pounds)
699 Euro


The lid in so called Commotion design attracts attention.
The 160 GB hard disk is not very fast.
There is still some space left for a HSDAP card inside this notebook.
... the fan just needed to run from time to time, but was clearly audible, if it did.
Although the cooling system of the processor is rather small...
The touch pad sometimes refused to work during our review.
... and during transportation it gets obvious that this is not ideal.
The notebook does not have a transport hook...
Despite its look, it is quite a thick notebook.
...the Inspiron 1525 is also equipped with a HDMI-out - a sensation considering the price category.
Besides S-Video out...
Unusual, but handy: At the front edge there are two headphone ports.
The left button launches Dell's multimedia interface called MediaDirect. It makes watching motion pictures or listening to music possible without booting the operating system.
The multimedia bar above the keyboard is touch-sensitive.
But, they match the design of the other parts.
The sound of the speakers is average.
If you scrutinize this Dell notebook, you'll nevertheless find some minor weaknesses regarding workmanship.
The inner part of the 1525 is decent, the workmanship is good and the surfaces feel nice to the touch.
Depending on the load up to four and a half hours runtime are possible. During our review we had to recharge the battery mostly after three hours.

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Dell Inspiron 1525 on Ciao


+Stable case
+Good workmanship
+User-friendly keyboard
+Bright display
+HDMI port
+Remote Control
+Built-in webcam


-Fan characteristic
-Problem with transport hook
-Touch pad does not always react at once


Dell Inspiron 1525 - 01/20/2008
Kristian Kübeck

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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Review Dell Inspiron 1525 Notebook
Kristian Kübeck, 2008-03- 8 (Update: 2012-05-26)