Dell OptiPlex 7020 SFF vs. HP ProDesk 400 G6 Mini

Comparison and Differences

Dell_OptiPlex_7020_SFF.jpg case front and back pannelHP_ProDesk_400_G6_Mini.jpg case front and back pannel
ModelDell OptiPlex 7020 SFFHP ProDesk 400 G6 Mini
Form factorSmallMicro
CPU optionsIntel Gen4 i3/i5/i7; Pentium; Intel Gen10 i3/i5/i7; Celeron; Pentium;
ChipsetQ87Q470
Dedicated GPU *GeForce GTX 1650 Low ProfileN.A.
RAMDIMM DDR3-1600 SODIMM DDR4-3200
RAM slots42
RAM speed1600 MT/s3200 MT/s
RAM max16 GB64 GB
USB ports(4x) USB-A 3.0; (6x) USB-A 2.0; USB-C 3.1; USB-A 3.1; (3x) USB-A 3.0; (2x) USB-A 2.0;
Video ports(2x) DisplayPort 1.2; VGA;DisplayPort; HDMI;
Other portsRJ45; Hdph; Mic; Line-Out; Line-In; Serial; (2x) PS2; RJ45; Headset;
Optional portsN.A.DP1.4/HDMI2.0/VGA/Serial/USB-C; Serial/(2x)USB-A3.1; WiFi anntena;
SATA ports31
PCI slotsPCIe 3.0 x16; PCIe x16 (wired x4);N.A.
M.2 slotsN.A.M.2 2280 M-key (PCIe x4); M.2 2230 (WiFi/BT)
Drive bays2.5/3.5-inch; 5.25-inch(slim)2.5-inch;
PSU 255 W65 W
Weight6.00 kg (13.22 lb)1.25 kg (2.74 lb)
Released20142020
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 7020 SFF and HP ProDesk 400 G6 Mini

If a more modern desktop is what you are looking for, then you should go with the HP ProDesk 400 G6 Mini which was released in 2020. The Dell OptiPlex 7020 SFF is older and entered production in 2014.

If you are looking for the smaller form factor the HP ProDesk 400 G6 Mini is the right one for you. It is smaller than the Dell OptiPlex 7020 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 HP ProDesk 400 G6 Mini 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 G6 Mini 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 G6 Mini is using the faster 3200 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 G6 Mini as it has the ability to run 64 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 G6 Mini is inferior in this regard and packs 7 USB ports. What is nice about the HP ProDesk 400 G6 Mini, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex 7020 SFF has no such port, thus restricting your transfer speeds a bit.

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 G6 Mini has only 1.

The HP ProDesk 400 G6 Mini comes with an HDMI port, while the Dell OptiPlex 7020 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 port 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 7020 SFF is better equipped as it comes with 3 SATA slot(s).

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 G6 Mini. 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 HP ProDesk 400 G6 Mini comes with a decent 65 Watt PSU, but the Dell OptiPlex 7020 SFF has a more powerful one rated at 255 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_G6_Mini_motherboard.jpg motherboard layout

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