Dell OptiPlex 3090 M vs. HP EliteDesk 800 G5 Mini

Comparison and Differences

Dell_OptiPlex_3090_M.jpg case front and back pannelHP_EliteDesk_800_G5_Mini.jpg case front and back pannel
Model
Form factorMicroMicro
CPU optionsIntel Gen10 i3/i5/i7; Pentium; Celeron;Intel Gen8&9 i3/i5/i7; Celeron; Pentium;
ChipsetQ470Q370
Dedicated GPU *N.A.N.A.
RAMSODIMM DDR4-2666/2933SODIMM DDR4-2666
RAM slots22
RAM speed2933 MT/s2666 MT/s
RAM max64 GB64 GB
USB ports(4x) USB-A 3.0; (2x) USB-A 2.0;USB-C 3.1; (3x)USB-A 3.1; (3x)USB-A 3.0;
Video ports(2x) Display Port 1.4;(2x) DisplayPort;
Other portsRJ45; Headset; Line-Out;RJ45; Hdph; Headset;
Optional portsHDMI 2.0b/Displayport/VGA;DP/HDMI/VGA/USB-C(DP)/Serial/Thunderbolt 3.0/Fiber NIC; WiFi antenna;
SATA ports11
PCI slotsN.A.N.A.
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT) (2x) M.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT);
Drive bays2.5in;2.5in;
PSU65 W65/90/150 W
Weight1.28 kg (2.82 lb)1.05 kg (2.31 lb)
Released20212019
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 3090 M and HP EliteDesk 800 G5 Mini

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 3090 M which was released in 2021. The HP EliteDesk 800 G5 Mini is older and entered production in 2019.

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 3090 M as it is running a newer generation CPU. This is not to say that HP EliteDesk 800 G5 Mini 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 3090 M is using the faster 2933 MT/s RAM. The HP EliteDesk 800 G5 Mini is slower by supporting RAM speeds of up to 2666 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

In total the HP EliteDesk 800 G5 Mini has 7 USB ports. The Dell OptiPlex 3090 M is inferior in this regard and packs 5 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. What is nice about the HP EliteDesk 800 G5 Mini, is that it has 4 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex 3090 M 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 HP EliteDesk 800 G5 Mini comes with 2 ports, while the Dell OptiPlex 3090 M has only 1. If you are planning to use multiple monitors, the HP EliteDesk 800 G5 Mini is the better choice.

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 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 1 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 HP EliteDesk 800 G5 Mini has 1 M.2 slots while the Dell OptiPlex 3090 M 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 3090 M comes with a decent 65 Watt PSU, but the HP EliteDesk 800 G5 Mini has a more powerful one rated at 150 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_3090_M_motherboard.jpg motherboard layoutHP_EliteDesk_800_G5_Mini_motherboard.jpg motherboard layout