Dell OptiPlex 5090 MT vs. HP EliteDesk 800 G3 Tower

Comparison and Differences

Dell_OptiPlex_5090_MT.jpg case front and back pannelHP_EliteDesk_800_G3_Tower.jpg case front and back pannel
Model
Form factorMini TowerMini Tower
CPU optionsIntel Gen10&11 i3/i5/i7;Intel Gen6&7 i3/i5/i7; Celeron; Pentium;
ChipsetQ570Q270
Dedicated GPU *GeForce GTX 1660 SuperGeForce GTX 1660 Super
RAMDIMM DDR4-2666/2933/3200DIMM DDR4-2400
RAM slots44
RAM speed3200 MT/s2400 MT/s
RAM max128 GB64 GB
USB portsUSB 3.1 Type C; (x5) USB-A 3.0; (x4) USB-A 2.0;USB-C 3.0; (6x)USB-A 3.0; (4x)USB-A 2.0;
Video ports(4x) Display Port 1.4; (x3) HDMI 2.0b; VGA;(2x) DisplayPort;
Other portsRJ45; Headset; Line-Out/In;RJ45; Hdph; Headset; Line-Out; Line-In;
Optional portsVGA /DisplayPort 1.4/HDMI 2.0b/USB 3.2 Gen2 Type-C Port Alt-mode; SD Card;DP/HDMI/VGA/USB-C(DP); Serial; SD card reader;
SATA ports45
PCI slotsPCIe 4.0 x16; PCIe 4.0 x4; (x2) PCIe x1;PCIe 3.0 x16; (2x) PCIe 3.0 x1; PCIe 3.0 x16 (wired x4);
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT) M.2 2280 M-key (PCIe x4); M.2 2230 (WiFi/BT);
Drive bays(x2) 3.5in; (2x) 2.5in; 5.25in (slim);2.5in; (2x) 3.5in; 5.25in; 5.25in (slim);
PSU260/300/360 W250/500 W
Weight7.24 kg (15.95 lb)9.8 kg (21.7 lb)
Released20212017
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 5090 MT and HP EliteDesk 800 G3 Tower

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 5090 MT which was released in 2021. The HP EliteDesk 800 G3 Tower is older and entered production in 2017.

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 5090 MT as it is running a newer generation CPU. This is not to say that HP EliteDesk 800 G3 Tower 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 5090 MT is using the faster 3200 MT/s RAM. The HP EliteDesk 800 G3 Tower is slower by supporting RAM speeds of up to 2400 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex 5090 MT as it has the ability to run 128 GB of RAM. The HP EliteDesk 800 G3 Tower can do a bit less at max 64 GB. Most of the times, this should be sufficient for the majority of users.

Ports

Both models have the same amount of USB ports for total count of 10. If this is not enough, using a USB hub is always a viable option. What is nice about the Dell OptiPlex 5090 MT, is that it has 3 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the HP EliteDesk 800 G3 Tower 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 5090 MT comes with 4 ports, while the HP EliteDesk 800 G3 Tower has only 2. If you are planning to use multiple monitors, the Dell OptiPlex 5090 MT is the better choice.

The Dell OptiPlex 5090 MT comes with an HDMI port, while the HP EliteDesk 800 G3 Tower 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 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 HP EliteDesk 800 G3 Tower is better equipped as it comes with 5 SATA slot(s), while the Dell OptiPlex 5090 MT has 4 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 5090 MT comes with a decent 360 Watt PSU, but the HP EliteDesk 800 G3 Tower has a more powerful one rated at 500 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_5090_MT_motherboard.jpg motherboard layoutHP_EliteDesk_800_G3_Tower_motherboard.jpg motherboard layout