Dell OptiPlex 7090 MT vs. Dell OptiPlex Tower Plus 7020 2024

Comparison and Differences

Dell_OptiPlex_7090_MT.jpg case front and back pannelDell_OptiPlex_Tower_Plus_7020_2024.jpg case front and back pannel
Model
Form factorMini TowerMini Tower
CPU optionsIntel Gen10&11 i3/i5/i7/i9;Intel Gen 12&13&14 i3/i5/i7/i9
ChipsetQ570Q670
Dedicated GPU *GeForce RTX 3070 (OEM)GeForce RTX 4060
RAMDIMM DDR4-2666/2933/3200DIMM DDR5-4400
RAM slots44
RAM speed3200 MT/s4400 MT/s
RAM max128 GB128 GB
USB portsUSB 3.2 Type C; USB 3.1 Type C; (2x) USB-A 3.1; USB-A 3.0; (x4) USB-A 2.0;(4x) USB-A 2.0; (3x) USB-A 3.0; (2x) USB-A 3.1; USB-C 3.2
Video ports(4x) Display Port 1.4; (x3) HDMI 2.0b; VGA;(3x) Display Port 1.4a;
Other portsRJ45; Audio; Line-Out/In; Serial; (x2) PS2RJ45(2.5GHz); Audio; Line-Out/In;
Optional portsUSB Type-C (DP Alt Mode); Media Card Reader;HDMI 2.0b/Displayport/VGA/PS2/serial/USB Type-C 3.1; Serial port; SD-card slot
SATA ports44
PCI slotsPCIe 4.0 x16; PCIe 3.0 x4; PCIe 3.0 x1; PCIe-32PCIe 4.0 x16; PCIe 3.0 x4;PCIe 3.0 x1; PCI-32;
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 M-key (PCIe); M.2 2230 (WiFi/BT) M.2 2230/2280 (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays(x2) 3.5in; (2x) 2.5in; 5.25in (slim);(x2) 3.5in
PSU260/300/369/500 W260/500 W
Weight10.22 kg (22.53 lb)9.63 kg (21.24 lb)
Released20212024
Manuallinklink
Price**Check PriceCheck Price

** As an Amazon associate we earn from qualifying purchases.
* 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 OptiPlex 7090 MT and Dell OptiPlex Tower Plus 7020 2024

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex Tower Plus 7020 2024 which was released in 2024. The Dell OptiPlex 7090 MT is older and entered production in 2021.

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 Plus 7020 2024 as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7090 MT is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

Both models have have equal amount of ram slots (4 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 Plus 7020 2024 is using the faster 4400 MT/s RAM. The Dell OptiPlex 7090 MT is slower by supporting RAM speeds of up to 3200 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 128 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

In total the Dell OptiPlex Tower Plus 7020 2024 has 10 USB ports. The Dell OptiPlex 7090 MT is inferior in this regard and packs 9 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. It's great that both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. But if you need maximum connectivity, go with the Dell OptiPlex 7090 MT as it has 3 USB3.1 ports (the Dell OptiPlex Tower Plus 7020 2024 has 2).

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex 7090 MT comes with 4 ports, while the Dell OptiPlex Tower Plus 7020 2024 has only 3. If you are planning to use multiple monitors, the Dell OptiPlex 7090 MT is the better choice.

The Dell OptiPlex 7090 MT comes with an HDMI port, while the Dell OptiPlex Tower Plus 7020 2024 does not support the interface. Of course missing HDMI port is something that can be easily fixed with a good adapter (e.g. DisplayPort to HDMI).

SATA slots are located on the motherboard and it is where SSD, HDD and Optical Disk Drives are connected. Each of the two models being compared have 4 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.

An M.2 SSD can be several times faster than a SATA one. Thus, we are happy to see that both models support the M.2 interface. However, the Dell OptiPlex Tower Plus 7020 2024 has 2 M.2 slots while the Dell OptiPlex 7090 MT comes with just 2.

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

Looking at the Power Supply Unit (PSU) of the two models we don't see any differences. For either of them you get a maximum power of 500 Watts. However be careful, many models have more than one power supply option. When buying your computer, it is a good idea to get a version with the most powerful PSU. This will potentially allow you to upgrade to a more powerful GPU for example.

Motherboard

Dell_OptiPlex_7090_MT_motherboard.jpg motherboard layoutDell_OptiPlex_Tower_Plus_7020_2024_motherboard.jpg motherboard layout