Dell OptiPlex 3080 MT vs. Dell OptiPlex 7080 SFF

Comparison and Differences

Dell_OptiPlex_3080_MT.jpg case front and back pannelDell_OptiPlex_7080_SFF.jpg case front and back pannel
Model
Form factorMini TowerSmall
CPU optionsIntel Gen10 i3/i5/i7; Pentium; Celeron;Intel Gen10 i3/i5/i7/i9;
ChipsetB460Q470
Dedicated GPU *GeForce GTX 1650 SuperGeForce GTX 1650 Low Profile
RAMDIMM DDR4-2666DIMM DDR4-2666/2933
RAM slots24
RAM speed2666 MT/s2933 MT/s
RAM max64 GB128 GB
USB ports(4x) USB-A 3.0; (4x) USB-A 2.0;USB 3.1 Type C; (2x) USB-A 3.1; (3x) USB-A 3.0; (4x) USB-A 2.0;
Video portsDisplay Port 1.4; HDMI 1.4b;(2x) Display Port 1.4;
Other portsRJ45; Headset; Line-Out;RJ45; Headset; Line-Out/In; Serial; (2x) PS2;
Optional portsSerial/PS2; DP1.4/HDMI2.0b/VGA; (2x)WiFi antenna; HDMI2.0b/DP1.4/VGA/USB Type-C (DP Alt Mode); SD4.0; 2xWiFi antenna;
SATA ports33
PCI slotsPCIe 3.0 x16; (2x) PCIe x1;PCIe 3.0 x16; PCIe 3.0 x4 (open ended);
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT) M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2280 M-key (PCIe); M.2 2230 (WiFi/BT)
Drive bays3.5in; (2x) 2.5in; 5.25in (slim);3.5in/(2x)2.5in; 5.25in (slim);
PSU260 W200 W
Weight5.35 kg (11.79 lb)5.28 Kg (11.63 lb)
Released20202020
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 3080 MT and Dell OptiPlex 7080 SFF

Both computers, the Dell OptiPlex 3080 MT and the Dell OptiPlex 7080 SFF, were released during the same year - 2020.

If you are looking for the smaller form factor the Dell OptiPlex 7080 SFF is the right one for you. It is smaller than the Dell OptiPlex 3080 MT and will fit more easily under your desk.

Processor

The two models have the same generation of Intel processors. We think that the 10 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

Memory

The Dell OptiPlex 7080 SFF has 4 RAM slots while the Dell OptiPlex 3080 MT has only 2 slot(s). This is not something to worry about. Just make sure you take it into consideration when planning how much RAM you are going to use.

The Dell OptiPlex 7080 SFF is using the faster 2933 MT/s RAM. The Dell OptiPlex 3080 MT is slower by supporting RAM speeds of up to 2666 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex 7080 SFF as it has the ability to run 128 GB of RAM. The Dell OptiPlex 3080 MT can do a bit less at max 64 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the Dell OptiPlex 7080 SFF has 10 USB ports. The Dell OptiPlex 3080 MT is inferior in this regard and packs 8 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. What is nice about the Dell OptiPlex 7080 SFF, is that it has 3 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex 3080 MT 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.

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex 7080 SFF comes with 2 ports, while the Dell OptiPlex 3080 MT has only 1. If you are planning to use multiple monitors, the Dell OptiPlex 7080 SFF is the better choice.

The Dell OptiPlex 3080 MT comes with an HDMI port, while the Dell OptiPlex 7080 SFF 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 3 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 7080 SFF has 1 M.2 slots while the Dell OptiPlex 3080 MT comes with just 1.

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 OptiPlex 7080 SFF comes with a decent 200 Watt PSU, but the Dell OptiPlex 3080 MT has a more powerful one rated at 260 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_OptiPlex_3080_MT_motherboard.jpg motherboard layoutDell_OptiPlex_7080_SFF_motherboard.jpg motherboard layout