The Specs
Outside aside, the machine’s internals are where the 3540 falls behind the 7530. The processor selection in the 3540 is quite limited. The best CPU you can get for the workstation is an Intel Core i7 with 4 cores, whereas the 7530 offers both an Intel Core i9 option and two Xeon options with 6 cores each. As for the 3540’s GPU, if you want a discrete one (you have the option of sticking with integrated Intel graphics only), it’ll be the AMD Radeon Pro WX 2100 with just 2GB of GDDR5 VRAM. There are no NVIDIA options at all, let alone the choice of a Quadro card. Here’s the full list of processors available with the Precision 3540 (asterisk denotes our review unit):
- CPU
o Intel Core i7-8665U (4 Core, 8MB Cache, 1.8GHz up to 4.8GHz Turbo, 15W, vPro)
o *Intel Core i7-8565U (4 Core, 8MB Cache, 1.8GHz up to 4.6GHz Turbo, 15W)
o Intel Core i5-8365U (4 Core, 6MB Cache, 1.6GHz up to 4.1GHz Turbo, 15W, vPro)
o Intel Core i5-8265U (4 Core, 6MB Cache, 1.6GHz up to 3.9Ghz Turbo, 15W)
- GPU
o *AMD Radeon Pro WX 2100 (2GB GDDR5)
o *Intel UHD Graphics 620
The memory and storage options are also quite limited in the 3540 compared to the 7530. Whereas the 7530 can be configured with up to 128GB of non-ECC memory (up to 64GB ECC) and a whopping 6TB of SSD storage, the 3540 is capped at 32GB of non-ECC memory and 2TB of SSD storage. We had 16GB of memory and 512GB of storage in our review unit.
The I/O ports on the 3540 are similar to the 7530, though the 3540 doesn’t offer a Mini DisplayPort, and it’s got 3 USB 3.1 ports and 1 USB-C, while the 7530 has two of each. The USB-C port is Thunderbolt compatible, and it’s used as the charging port with the 90W adapter that shipped with our unit. You can also choose an adapter with a 7.4mm Barrel port, which is located right next to the USB-C port on the right side of the 3540. Other than the USB ports, the 3540 offers an RJ45 Ethernet port, an HDMI port, a headphone jack, an SD card reader, a security lock slot, and an optional smart card reader (which can be configured as contactless or not). You can also configure the 3540 with a fingerprint reader, located on the power button on the top right corner above the keyboard.
The starting price of the Precision 3540 is a budget-friendly $769. If you spec out the 3540, it’ll cost just over $3,086, about a third of the max price of the 7530. The price of our review unit, with the Core i7-8565U, Radeon Pro WX 2100, 16GB of memory, and 512GB of storage, worked out to $1,666.56.
The Performance
The 3540 looks quite pitiful compared to its more powerful cousin, the 7530. It performs slightly better than the Surface Pro 6 in most categories (it loses in Creo), though that’s hardly an achievement, as the Surface isn’t really a mobile workstation. When it comes to graphical processing, the 3540 falls flat.
The next benchmark we ran, SPECworkstation 3, bore similar results. SPECworkstation tests a computer’s performance for industry segments such as product development, media and entertainment, life sciences, and more. As with SPECviewperf, the 3540 scored below average in each category. Here’s how the Precision 3540 compares to the same three workstations shown above when running SPECworkstation:
The final benchmark we ran was PassMark PerformanceTest, a general-purpose assessment of a computer’s capabilities. PerformanceTest rates a computer in five categories: CPU performance, 2D graphics performance, 3D graphics performance, memory performance, and disk performance, and then aggregates the results into a score called the PassMark Rating. Here’s how the Precision 3540 scored in each category:
These benchmark results suggest that, in terms of computational and graphical performance, the Precision 3540 is closer to the Surface Pro 6 tablet than the Precision 7530 mobile workstation. If you’re willing to take that much of a hit on performance, you might as well go with the Surface Pro: it’s cheaper, lighter, and has a better (if smaller) display.
In fairness to the Precision 3450, it does have one exceptional strength: its battery life. The 3540’s 7966mAh battery lasts longer than any other laptop we’ve reviewed this year. In our high efficiency tests, which test how far a battery can go under ideal conditions (low screen brightness, battery saving mode on, airplane mode on, etc.), the 3540 survived for an average of 16 hours and 26 minutes. Until now, I thought those kinds of numbers were simply an aspirational stretch pulled out of thin air by OEMs.
In a test of high performance battery life, with screen brightness at max, no power saving options on, and processor-heavy applications running, the 3540 fared less well, making it to just over two hours of use. In our test of more typical working conditions, with default power saving options, a comfortable screen brightness, and a miscellaneous spread of applications and activities, the battery lasted for about 8 hours and 53 minutes. That’s an excellent full day or more of unplugged use.
Using a Spyder5ELITE colorimeter, we determined that the 3540’s color gamut is mostly as advertised. It covers 99 percent of the sRGB color space and 74 percent of Adobe RGB. Recall that the 3450 can be configured with even less color, down to 45 percent sRGB coverage (and unknown coverage of other color spaces). As it stands, the 3540 is typical in the 100/75 sRGB/Adobe RGB coverage seen in most mobile workstations (aside from those that make a point of fully covering Adobe RGB, like the Precision 7530).
It’s rare to find a display that’s perfect to every pixel, and the 3540 is no exception. At 100 percent brightness, the luminance of the display differs by as much as 10 percent in the top corners, and the color accuracy deviates by a Delta-E as high as 6.5 in the top left. Discrepancies of this magnitude are typical, and most users won’t ever notice them.
The Rest
The thermal management on the 3540 is decent, with the laptop never getting too warm and the fan remaining mostly silent. Some laptops seem to always need the airflow, but the 3540’s fan almost never kicked in outside of when it was performing the most strenuous of tasks. Of course, that could be due to the comparatively low power requirements of the 3540’s processors.
Here’s how the Dell Precision 3540 fits in on a price/performance curve of workstations we’ve reviewed this year:
Pros |
In the Middle |
Cons |
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