Dell OptiPlex 3000 Tower vs. HP ProDesk 400 G5 SFF

Comparison and Differences

Dell_OptiPlex_3000_Tower.jpg case front and back pannelHP_ProDesk_400_G5_SFF.jpg case front and back pannel
Model
Form factorMini TowerSmall
CPU optionsIntel Gen 12 i3/i5/i7/i9; PentiumIntel Gen8 i3/i5/i7; Celeron; Pentium;
ChipsetB660B360
Dedicated GPU *GeForce GTX 1650 SuperGeForce GT 1030 Low Profile
RAMDIMM DDR4-3200DIMM DDR4-2666
RAM slots22
RAM speed3200 MT/s2666 MT/s
RAM max64 GB32 GB
USB ports(4x) USB-A 2.0; (4x) USB-A 3.0;(4x)USB-A 3.0; (4x)USB-A 2.0;
Video portsDisplay Port 1.4a; HDMI 1.4b;DisplayPort; VGA;
Other portsRJ45; Audio; Line-Out/In;RJ45; Headset; Line-In; Line-Out;
Optional portsHDMI 2.0b/Displayport/VGA; SerialSD card reader; Serial; Serial and (2x) PS2; DP/HDMI/VGA/USB-C(DP);
SATA ports33
PCI slotsPCIe 3.0 x16; (2x) PCIe 3.0 x1;PCIe 3.0 x16; PCIe 3.0 x1;
M.2 slotsM.2 2230/2280 (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT) M.2 2280/2230 M-key (PCIe x4); M.2 2230 (WiFi/BT)
Drive bays3.5in; (2x) 2.5in; 5.25in (slim);(2x)2.5/3.5in; 5.25in (slim)
PSU180/240/300 W180 W
Weight6.61 kg (14.59 lb)4.6 kg (10.14 lb)
Released20222018
Manuallinklink
Price**Check PriceCheck Price

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* 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 3000 Tower and HP ProDesk 400 G5 SFF

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 3000 Tower which was released in 2022. The HP ProDesk 400 G5 SFF is older and entered production in 2018.

If you are looking for the smaller form factor the HP ProDesk 400 G5 SFF is the right one for you. It is smaller than the Dell OptiPlex 3000 Tower 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 Dell OptiPlex 3000 Tower as it is running a newer generation CPU. This is not to say that HP ProDesk 400 G5 SFF 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 3000 Tower is using the faster 3200 MT/s RAM. The HP ProDesk 400 G5 SFF is slower by supporting RAM speeds of up to 2666 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex 3000 Tower as it has the ability to run 64 GB of RAM. The HP ProDesk 400 G5 SFF can do a bit less at max 32 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 8. If this is not enough, using a USB hub is always a viable option. None of the desktop models has a USB 3.1 port (10Gb/s), so if you need a fast connection to your peripherals, like external Solid State Drive, you will need to look elsewhere.

The DisplayPort is usually the more popular video port used with desktops and laptops, while the HDMI is used predominantly in consumer electronics. That's why, it is good to see that both of the models come with a DisplayPort.

The Dell OptiPlex 3000 Tower comes with an HDMI port, while the HP ProDesk 400 G5 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 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 3 SATA slot(s). Keep in mind that having too few SATA slots might limit your options for connecting additional memory drives.

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 HP ProDesk 400 G5 SFF comes with a decent 180 Watt PSU, but the Dell OptiPlex 3000 Tower has a more powerful one rated at 300 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_3000_Tower_motherboard.jpg motherboard layoutHP_ProDesk_400_G5_SFF_motherboard.jpg motherboard layout