Dell Precision 5550 vs 7550: Which One is a Better Mobile Workstation?

Dell precision 5550 vs 7550 (2)

This is a comparison of Dell Precision 5550 and Precision 7550 laptops. There are some differences in design and also performance. Here, we will see which one is a replacement for desktop as a mobile workstation.

Dell-Precision 5550 (1)DELL_Precision_7550 (1)
Dell Precision 15 5550Dell Precision 15 7550
Solid battery life for a workstation.
Loud speakers.
Sleek and portable especially for its class.
Great quality speakers.
Amazing battery life.
Pricier for performance.
Webcam could be better.
Display could be better.


Type15.6″ UltraSharp FHD+, 1920×1200,AG,NT, w/Prem Panel Guar, 100% sRGB, Low BL w/ IR Cam15.6″ FHD, 60Hz, Anti-Glare, Non-Touch, 45% NTSC, 220 Nits, WVA, CamMic/WLAN display,
15.6″ FHD, 60Hz, Anti-Glare, Non-Touch, 100% DCIP3, 500 Nits, WVA, CamMic/WWAN display
Resolution1920 x 12001920 x 1080
LCD Backlight TechnologyLED-BacklitLED-Backlit
CPU10th Generation Intel Core i5-10400H, Intel Core i7-10750H, Intel Core i7-10850, Intel Core i9-10885H, Intel Xeon W-10855M10th Generation Intel Core i5-10400H, Intel Core i7-10750H, Intel Core i7-10850, Intel Xeon W-10855M
Clock Speed (Turbo boost)4.60 GHz, 5.0 GHz, 5.1 GHz, 5.10 GHz, 5.30 GHz,4.60 GHz, 5.0 GHz, 5.10 GHz
Cache8M, 12M, 16M Cache8MB, 12MB Cache
Speed2667MHz, 2933MHz2933Mhz
TechnologyDDR4, ECCDDR4, Non-ECC or ECC
Size8GB to 32GB8GB to 64GB
Storage256GB, 512GB256GB, 512GB
Spindle SpeedM.2 PCIe NVMe Class 35 Solid State Drive, M.2 PCIe NVMe Class 40 Solid State DriveM.2 PCIe NVMe Class 35 Solid State Drive, M.2 PCIe NVMe Class 40 Solid State Drive
Graphic ProcessorIntel UHD Graphics 630, Intel UHD Graphics P630, NVIDIA Quadro T1000, 4 GB, GDDR6,
NVIDIA Quadro T2000, 4 GB, GDDR6
Intel UHD Graphics, NVIDIA Quadro T2000 w/4GB GDDR6, NVIDIA Quadro RTX 5000 w/16GB GDDR6
SoundStereo woofer 2.5 W x 2 and stereo tweeter 1.5 W x 2 = 8 W total peak2W Stereo speaker
Camera1280 x 720 at 30 fps, HD RGBIr fixed focus cameraHD 1280 x 720 RGB at 30 fps camera with Omni-directional digital Microphone, HD 1280 x 720 RGB at 30 fps IR camera with Omni-directional digital Microphone + Proximity sensor
TypeWindows 10 Home, Windows 10 ProfessionalWindows 10 Home, Windows 10 Professional
Ports1 USB 3.2 Gen 2 Type-C port with Thunderbolt 3 (Power Delivery),
1 USB 3.2 Gen 2 Type-C port with Thunderbolt 3 (Power Delivery),
1 USB 3.2 Gen 2 Type-C (Power Delivery),
1 Universal Audio port,
1 SD card slot,
1 Noble slot
2 USB 3.2 Gen 1 Type-A with PowerShare,
2 USB 3.2 Gen 2 Thunderbolt 3.0 Type C,
1 Headphone Jack,
1 HDMI 2.0,
1 Mini DP 1.4,
1 Power port,
1 RJ-45,
1 Smart Card Reader,
1 SD Card Reader,
1 Cable Lock
Memory cardFull size SD cardFull size SD card
Wireless ProtocolIntel Dual Band Wireless AX201 2×2 + Bluetooth 5.1 vProIntel Wi-Fi 6 2×2 (Gig+) and Bluetooth 5.1
Wired ProtocolEthernet
Capacity56WHr or 68 Whr ExpressCharge68WHr or 95 Whr with ExpressCharge
Cells3-cell or 6-cell6-cell
Width13.56 in14.17 in
Depth9.07 in9.53 in
Height0.46 in0.98 in
Weight4.06 lbs5.42 lbs
KeyboardUS English Backlit KeyboardInternal Single Pointing Non-Backlit Keyboard, US English with 10 Key Numeric Keypad



Both of these two computers are 15-inch mobile workstations from Dell but they’re two very different types of computers. In this review, I might be able to help you in figuring out which computer might be more suited to your needs.


When you put these two together side by side, the 7550 is larger in size. The 7550 is about just one centimeter larger than the 5550. Thickness-wise, the 5550 is nearly the half-thickness of the 7550, so the 5550 does an amazing job. Weight-wise, the 5550 weighs about 1.86 kilos and as for the 7550 you’re looking at 2.6 kilos, so that’s around about 800 grams more.

With the precision 5550, it comes with a 130-watt power adapter. This power adapter charges the Precision 5550 through a USB-C port. With the Precision 7550, it comes with a 180-watt power adapter and that actually is a barrel style. It’s about a quarter of the size with the 130-watt power adapter compared to the 180-watt power adapter. With the Precision 5550, you’re looking for the weight of a laptop plus the actual power adapter is 2.3 kilos. With the 7550, the total weight of the unit plus the power adapter is 3.3 kilos. So, that’s a one-kilo difference between this 5550 and the 7550. So, if you’re doing a lot of traveling, especially on planes, the 5550 does look a lot nicer.


As for the display, there’s a big difference there as well. With the Precision 7550, you’ve got your normal aspect ratio of 16 by 9 whereas this Precision 5550 has got a gorgeous screen that has an aspect ratio of 16 by 10. So, you can actually fit more on the display and the Precision 5550 has more thinner bezel as well. So display-wise, 5550 looks a lot nicer. For configuring, they both are very similar. You can get full HD with touch and non-touch and there’s also a 4K version of these two computers as well.


They’re actually very similar. So, with the processor, they house i5 all the way up to a Xeon in these two computers, and for RAM, they can go up to a maximum capacity of 128 GB of RAM and both can be serviceable or you can upgrade them yourself as well. The hard drive is very similar as well. The difference is the discrete graphics that you can configure these two with. So with the Precision 5550, it can house NVIDIA Quadro T1000 or T2000 whereas the precision 7550 there is also available RTX 3000, RTX 4000, and RTX 5000. So, if you need more graphical power then straight away the precision 7550 is going to be the computer you’ll be looking for.

For ports, the Precision 5550 being so slim now it only has four thunderbolt ports, so that’s been a massive change since the previous one and of course it still has its headphone jack which is great and it’s still got a full-size SD card slot. Now, what Dell has also included is this USB-C dongle for the Precision 5550, and what this little dongle has is a USB-A port and also an HDMI port. So, you can plug and actually have that available to you but you do need to carry this around. With the precision 7550, this thing has all its range of ports. You’ve got two Thunderbolt ports, an ethernet port which is a bit of a shame that they didn’t include ethernet on this dongle available with 5550. In 7550, you’ve got two USB-A ports, an HDMI port, a mini display port, you’ve still got your headphone jack and the full-size SD card reader. Definitely, I like the actual range of ports on the 7550.

In terms of the speakers, when I measured the actual maximum peak volume of the speakers they both measured very similar. But, what’s different is actually the sound quality between these two computers. With the Precision 5550, I found it feels much more surround sound and more fuller sound compared to the 7550 as well as it has more bass as well compared to 7550. When you actually put the 7550 at its maximum peak volume, then I found the 7550 much easier to listen to because it didn’t have that much tinny feel to it or less distortion compared to the 5550 but when you do listen on normal volume, the 5500 has much better speakers. I do wish that the Precision 7000 series that Dell would actually improve on its speakers, it seems to be a very massive weak point in all of their 7000 series. I just wish that Dell can actually improve on them, especially on the flagship range, they really do need to improve the speakers on the precision 7000 series.


As for the performance of these two computers, if you are mostly just running the processor only and not really much using the graphical power but if it’s graphical power that’s on inverse speed, then precision 5550 will be fine. If your applications run a lot of systems resources very intensively, definitely go with the 7550 which is a much more stable performance and higher performance compared to the Precision 5550. If you just need burst speed performance and probably speed up to about 15 minutes, then the 5550 will do you fine but after that more than 15 or so minutes, 7550 is your sure win for performance. If you do a lot of graphical work as well that runs the GPU a lot intensively over extended period times, again 7550 is a way better choice for you than the 5550. The 5550s just struggle a bit on the graphical power just because it can’t simply quite cool it down fast enough.

For 3D modeling, rendering works, and high computing works, you’re going to get a very nice solid stable performance from the 7550, especially with the cooling solutions. Whereas, the 5550 is a bit flaky when it turns over an extended period of time. So, it’s great if you’re just doing burst speed work but if you’re doing something that takes longer to render or do calculations or more than 30 minutes, go with the 7550.

As for the fan noise, I found the Precision 7550 ran its fan a lot less compared to the Precision 5550 doing similar types of tasks but the sound of the actual fan itself, I also found the 7550 just had a little bit lower pitch compared to the 5550. The 5550 spins its fan a little bit more high in speeds but when you put these two on load, you do hear these things go off but that’s normal because these two are powerhouse computers.


In terms of battery life, you’ll find the Precision 5550 has a little bit longer battery life compared to the 7550. Looking about a quarter more, you’re looking for about an hour to two hours a lot more than the 7550 and this is not under the ultra-performance mode. They both are very similar when you put these two computers ultra-performance and you’re just running it on 100% load, they both will be just under an hour. The difference is once you get into the better battery life modes that’s where the difference becomes, you’ll see an hour or two on the Precision 5550 for the battery life. The 7550 doesn’t have a longer battery life compared to the 5550, maybe it’s because of cooling. They both running i7 with the Quadro T1000. They both have an express charging system.


With the Precision 5550, it’s got a new keyboard. It’s got a bit of a larger casing than before and a nice tactile feel to it. It’s backlit as well and it’s quite nice that they did change the power key. The overall scheme is just more presentable. As for the 7550, it does have a full-size keyboard and you’ve got your number pad system which is really nice. I actually like the feel of the 7550’s keyboard. Even though the keys of the 5550s is gone larger, I actually find myself typing a lot quicker on the old style where the keys are a little bit smaller, it’s just a personal preference. For the actual surface of the keys, I find the actual 5550 keys a little bit harder and a little bit rougher whereas the 7550 keys are a little bit more rubberized. For the key travel, they’re both very similar. They do look physically different but feel wise, they just won’t but when you actually start typing, I just felt that with the 7550 I can type quickly.

The trackpad where the huge difference is. You can see how massive the trackpad is in the Precision 5550 compared to the Precision 7550. The Precision 7550 looks really tiny in comparison to the Precision 5550.
In Precision 5550, I did have issues with my palm clicking on it by accident, i just find it too large.


I definitely feel that the Precision 5550 feels more like a laptop where you can actually transport and work around because of the lightness. Whereas, the Precision 7550 is like more closer to the actual desktop replacement. Definitely, the Precision 7550 weighs a lot than the 5550 but it is a closer desktop replacement.

Expert reviews of Dell Precision 5550:

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