HP ProDesk 400 G4 Mini vs. Lenovo ThinkCentre E73 Small

Comparison and Differences

HP_ProDesk_400_G4_Mini.jpg case front and back pannelLenovo_ThinkCentre_E73_Small.jpg case front and back pannel
ModelHP ProDesk 400 G4 MiniLenovo ThinkCentre E73 Small
Form factorMicroDesktop
CPU optionsIntel Gen8 i3/i5/i7; Celeron; Pentium;Intel Gen4 i3/i5/i7; Pentium;
ChipsetB360H81
Dedicated GPU *N.A.GeForce GT 1030 Low Profile
RAMSODIMM DDR4-2400DIMM DDR3-1600
RAM slots22
RAM speed2400 MT/s1600 MT/s
RAM max32 GB16 GB
USB ports(4x)USB-A 3.0; (2x)USB-A 2.0; (2x)USB-A 3.0; (4x)USB-A 2.0;
Video ports(2x) DisplayPort;DisplayPort; VGA;
Other portsRJ45; Headset; Hdph;RJ45; Hdph; (2x) Mic; Line-Out; Line-In;
Optional portsDP/HDMI/VGA/Serial/USB-C; WiFi anntena; Serial; Media card reader (USB 2.0);
SATA ports13
PCI slotsN.A.PCIe 3.0 x16; (2x) PCIe 2.0 x1;
M.2 slotsM.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT) N.A.
Drive bays2.5-inch2.5-inch; 2.5/3.5-inch; 5.25-inch;
PSU65/90/150 WATX 180 W
Weight1.77 kg (2.9 lb)6.0 kg (13.2 lb)
Released20182013
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 HP ProDesk 400 G4 Mini and Lenovo ThinkCentre E73 Small

If a more modern desktop is what you are looking for, then you should go with the HP ProDesk 400 G4 Mini which was released in 2018. The Lenovo ThinkCentre E73 Small is older and entered production in 2013.

If you are looking for the smaller form factor the HP ProDesk 400 G4 Mini is the right one for you. It is smaller than the Lenovo ThinkCentre E73 Small 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 G4 Mini as it is running a newer generation CPU. This is not to say that Lenovo ThinkCentre E73 Small is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

RAM slots is where your insert your RAM sticks. Each of those two models has 2 RAM slot(s) which should be taken into account when planning how much and what combination of RAM you are going to need.

The HP ProDesk 400 G4 Mini is using the faster 2400 MT/s RAM. The Lenovo ThinkCentre E73 Small 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 G4 Mini as it has the ability to run 32 GB of RAM. The Lenovo ThinkCentre E73 Small can do a bit less at max 16 GB. Most of the times, this should be sufficient for most users.

Ports

Total count of USB ports for both computers is 6. 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 HP ProDesk 400 G4 Mini comes with 2 ports, while the Lenovo ThinkCentre E73 Small 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 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 Lenovo ThinkCentre E73 Small 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 G4 Mini. Sadly, the Lenovo ThinkCentre E73 Small 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 G4 Mini comes with a decent 150 Watt PSU, but the Lenovo ThinkCentre E73 Small has a more powerful one rated at 180 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

HP_ProDesk_400_G4_Mini_motherboard.jpg motherboard layoutLenovo_ThinkCentre_E73_Small_motherboard.jpg motherboard layout

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