Dell OptiPlex 7020 SFF vs. HP ProDesk 400 G5 Microtower

Comparison and Differences

Dell_OptiPlex_7020_SFF.jpg case front and back pannelHP_ProDesk_400_G5_Microtower.jpg case front and back pannel
ModelDell OptiPlex 7020 SFFHP ProDesk 400 G5 Microtower
Form factorSmallMini Tower
CPU optionsIntel Gen4 i3/i5/i7; Pentium; Intel Gen8 i3/i5/i7; Celeron; Pentium;
ChipsetQ87B360
Dedicated GPU *GeForce GTX 1650 Low ProfileGeForce GTX 1660 Super
RAMDIMM DDR3-1600 DIMM DDR4-2666
RAM slots42
RAM speed1600 MT/s2666 MT/s
RAM max16 GB32 GB
USB ports(4x) USB-A 3.0; (6x) USB-A 2.0; (4x)USB-A 3.0; (4x)USB-A 2.0;
Video ports(2x) DisplayPort 1.2; VGA;DisplayPort; VGA;
Other portsRJ45; Hdph; Mic; Line-Out; Line-In; Serial; (2x) PS2; RJ45; Headset Line-Out; Line-In;
Optional portsN.A.SD card reader; Serial; Serial and (2x) PS2; DP/HDMI/VGA/USB-C;
SATA ports33
PCI slotsPCIe 3.0 x16; PCIe x16 (wired x4);PCIe 3.0 x16; (2x) PCIe 3.0 x1;
M.2 slotsN.A.M.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT)
Drive bays2.5/3.5-inch; 5.25-inch(slim)2.5/3.5-inch; 3.5-inch; 5.25-inch (slim)
PSU 255 W180/250/310 W
Weight6.00 kg (13.22 lb)5.47 kg (12.06 lb)
Released20142018
Manuallinklink
* 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 7020 SFF and HP ProDesk 400 G5 Microtower

If a more modern desktop is what you are looking for, then you should go with the HP ProDesk 400 G5 Microtower which was released in 2018. The Dell OptiPlex 7020 SFF is older and entered production in 2014.

If you are looking for the smaller form factor the Dell OptiPlex 7020 SFF is the right one for you. It is smaller than the HP ProDesk 400 G5 Microtower 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 HP ProDesk 400 G5 Microtower as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7020 SFF is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell OptiPlex 7020 SFF has 4 RAM slots while the HP ProDesk 400 G5 Microtower has only 2 slot(s). Of course this is not something to worry about. Just make sure you take it into consideration when planning how much RAM will your system be using.

The HP ProDesk 400 G5 Microtower is using the faster 2666 MT/s RAM. The Dell OptiPlex 7020 SFF is slower by supporting RAM speeds of only up to 1600 MT/s. Additionally, if you will be needing a lot of RAM, better go for the HP ProDesk 400 G5 Microtower as it has the ability to run 32 GB of RAM. The Dell OptiPlex 7020 SFF can do a bit less at max 16 GB. Most of the times, this should be sufficient for most users.

Ports

In total the Dell OptiPlex 7020 SFF has 10 USB ports. The HP ProDesk 400 G5 Microtower is inferior in this regard and packs 8 USB ports. None of the desktop models has a USB 3.1 port (10Gb/s), so if you need a fast connection to your peripherals you will need to look at other models.

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex 7020 SFF comes with 2 ports, while the HP ProDesk 400 G5 Microtower has only 1.

None of the models has an HDMI port. If your monitor supports only the HDMI interface, you will need to buy an adapter.

SATA slot is where SSD, HDD and Optical Disk Drives are connected. Each of the two models being compared have 3 SATA slots.

If you want the fastest transfer speeds for your SSD, an M.2 interface is crucial. Thus, if the M.2 SSD slot is a mandatory requirement for you, go with the HP ProDesk 400 G5 Microtower. Sadly, the Dell OptiPlex 7020 SFF has no such slot, and you will be forced to use the SATA interface instead.

Remark: Make sure that the M.2 slot supports the PCIe (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 6 Gb/s, while the PCIe 3.0 x4 will support speeds up to 32 Gb/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 7020 SFF comes with a decent 255 Watt PSU, but the HP ProDesk 400 G5 Microtower has a more powerful one rated at 310 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.

Motherboard

Dell_OptiPlex_7020_SFF_motherboard.jpg motherboard layoutHP_ProDesk_400_G5_Microtower_motherboard.jpg motherboard layout

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