Dell Inspiron 3881 vs. Dell OptiPlex Tower 7020 2024

Comparison and Differences

Dell_Inspiron_3881.jpg case front and back pannelDell_OptiPlex_Tower_7020_2024.jpg case front and back pannel
Model
Form factorMini TowerMini Tower
CPU optionsIntel Gen10 i3/i5/i7; Celeron; Pentium;Intel Gen 12&13&14 i3/i5/i7;
ChipsetH470Q670
Dedicated GPU *GeForce GTX 1650 SuperGeForce GTX 1650 Super
RAMDIMM DDR4-2666/2933DIMM DDR5-5600
RAM slots22
RAM speed2933 MT/s5600 MT/s
RAM max64 GB64 GB
USB ports(3x) USB 3.0 Type A; USB 3.1 Type C; (4x) USB-A 2.0;(4x) USB-A 2.0; (4x) USB-A 3.0;
Video portsHDMI 1.4; DisplayPort 1.4; VGA;Display Port 1.4a; HDMI 1.4b;
Other portsRJ45; Headset; Line-Out; Card Reader;RJ45(2.5GHz); Audio; Line-Out/In;
Optional portsN.A.HDMI 2.1/Displayport/VGA; Serial
SATA ports23
PCI slotsPCIe 3.0 x16; PCIe 3.0 x1;PCIe 3.0 x16; (2x) PCIe 3.0 x1;
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT); M.2 2230/2280 (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays3.25in; 9.5mm3.5in; (2x) 2.5in; 5.25in (slim);
PSU260 W180/300 W
Weight6.40 kg (14.11 lb)6.37 kg (14.04 lb)
Released20202024
Manuallinklink
Price**Check PriceCheck Price

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* Dedicated GPU warning: Check if your particular power supply model has enough power. Additionally some PSUs don't come with an auxiliary PCIe power connector and you may need to buy a SATA to PCIe power adapter.

Differences between Dell Inspiron 3881 and Dell OptiPlex Tower 7020 2024

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex Tower 7020 2024 which was released in 2024. The Dell Inspiron 3881 is older and entered production in 2020.

Both models have the same form factor, meaning reoughtly they have the same phiysical size and form.

Processor

Usually the newer the generation of the CPU, the better the performance and efficiency is. If your budget allows it, you should go with the Dell OptiPlex Tower 7020 2024 as it is running a newer generation CPU. This is not to say that Dell Inspiron 3881 is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

Both models have have equal amount of ram slots (2 RAM). Usually two RAM slots are more than enough for most cases. However, the count should be taken into account when planning how much and what combination of RAM you are going to need for your system.

The Dell OptiPlex Tower 7020 2024 is using the faster 5600 MT/s RAM. The Dell Inspiron 3881 is slower by supporting RAM speeds of up to 2933 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 64 GB of RAM will be enough for most people. However, if you will be needing more RAM, make sure to check other desktop models too.

Ports

Both models have the same amount of USB ports for total count of 8. If this is not enough, using a USB hub is always a viable option. What is nice about the Dell Inspiron 3881, is that it has 1 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex Tower 7020 2024 has no such port, thus restricting your transfer speeds significantly. For people who want to use external drives on regular basis, this might be an issue.

The DisplayPort is usually the more popular video port used with desktops and laptops, while the HDMI is used predominantly in consumer electronics. That's why, it is good to see that both of the models come with a DisplayPort.

In case your monitor supports HDMI only, you will be happy to hear that both models come with an HDMI port.

SATA ports are placed on the system board and it is where you connect your HDD, SSD and Optical Disk Drives. More SATA slots will allow you to have more drives running at the same time. In this regard the Dell OptiPlex Tower 7020 2024 is better equipped as it comes with 3 SATA slot(s), while the Dell Inspiron 3881 has 2 slot(s).

When your goal is to have the fastest SSD transfer speeds, an M.2 interface is crucial. Thus, it is good that both models have M.2 SSD slots. Today M.2 SSDs are not much more expensive than the average SATA drives, so it really does not make sense to invest in SATA drives anymore.

Make sure that the available M.2 slot supports the PCIe (also called NVMe) interface. This is important as there are M.2 slots which support only the inferior SATA III interface. For comparison, the SATA III interface has max speeds of 6Gb/s, while the PCIe 3.0 x4 will support speeds up to 32Gb/s!

Power Supply

Having a Power Supply Unit with high power rating is important, if you are going to use components which require extra power. The Dell Inspiron 3881 comes with a decent 260 Watt PSU, but the Dell OptiPlex Tower 7020 2024 has a more powerful one rated at 300 Watts. Choosing either one depends on your specific requirements and use case. Also don't forget that some models might have more than one PSU option - try to always get the most powerful one, especially if you plan to upgrade to a powerful GPU.

Motherboard

Dell_Inspiron_3881_motherboard.jpg motherboard layoutDell_OptiPlex_Tower_7020_2024_motherboard.jpg motherboard layout