Dell OptiPlex 7080 SFF vs. Dell OptiPlex 7090 M

Comparison and Differences

Dell_OptiPlex_7080_SFF.jpg case front and back pannelDell_OptiPlex_7090_M.jpg case front and back pannel
Model
Form factorSmallMicro
CPU optionsIntel Gen10 i3/i5/i7/i9; Intel Gen10&11 i3/i5/i7/i9;
ChipsetQ470Q570
Dedicated GPU *GeForce GTX 1650 Low ProfileN.A.
RAMDIMM DDR4-2666/2933SODIMM DDR4-2666/2933/3200
RAM slots42
RAM speed2933 MT/s3200 MT/s
RAM max128 GB64 GB
USB portsUSB 3.1 Type C; (2x) USB-A 3.1; (3x) USB-A 3.0; (4x) USB-A 2.0; USB 3.2 Type C; (3x) USB-A 3.1; (x2) USB-A 3.0;
Video ports(2x) Display Port 1.4;(2x) Display Port 1.4; (2x) mini Display Port 1.4;
Other portsRJ45; Headset; Line-Out/In; Serial; (2x) PS2; RJ45; Audio; Line-Out/In;
Optional portsHDMI2.0b/DP1.4/VGA/USB Type-C (DP Alt Mode); SD4.0; 2xWiFi antenna; Serial; PS2 port; VGA port; DisplayPort 1.4/HDMI 2.0/USB 3.2 Gen2 Type-C
SATA ports30
PCI slotsPCIe 3.0 x16; PCIe 3.0 x4 (open ended);N.A.
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2280 M-key (PCIe); M.2 2230 (WiFi/BT) M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2280/2230 M-key (PCIe); M.2 2230 (WiFi/BT)
Drive bays3.5in/(2x)2.5in; 5.25in (slim); 2.5in
PSU200 W90/130/180 W
Weight5.28 Kg (11.63 lb)1.38 kg (3.05 lbs)
Released20202021
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 7080 SFF and Dell OptiPlex 7090 M

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 7090 M which was released in 2021. The Dell OptiPlex 7080 SFF is older and entered production in 2020.

If you are looking for the smaller form factor the Dell OptiPlex 7090 M is the right one for you. It is smaller than the Dell OptiPlex 7080 SFF and will fit more easily under your desk.

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 7090 M as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7080 SFF is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell OptiPlex 7080 SFF has 4 RAM slots while the Dell OptiPlex 7090 M 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 7090 M is using the faster 3200 MT/s RAM. The Dell OptiPlex 7080 SFF is slower by supporting RAM speeds of up to 2933 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 7090 M 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 7090 M is inferior in this regard and packs 6 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 7080 SFF as it has 3 USB3.1 ports (the Dell OptiPlex 7090 M has 1).

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.

None of the models has an HDMI port. If your monitor supports only the HDMI interface, you will need to buy an adapter. Such adapters are cheap so nothing to worry about.

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 7080 SFF is better equipped as it comes with 3 SATA slot(s), while the Dell OptiPlex 7090 M has 0 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 OptiPlex 7090 M comes with a decent 180 Watt PSU, but the Dell OptiPlex 7080 SFF has a more powerful one rated at 200 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_7080_SFF_motherboard.jpg motherboard layoutDell_OptiPlex_7090_M_motherboard.jpg motherboard layout