Dell OptiPlex 5070 SFF vs. Dell OptiPlex M Plus 7020 2024

Comparison and Differences

Dell_OptiPlex_5070_SFF.jpg case front and back pannel

Dell_OptiPlex_M_Plus_7020_2024.jpg case front and back pannel

Model
Form factor	Small	Micro
CPU options	Intel Gen8&9 i3/i5/i7; Celeron; Pentium;	Intel Gen 12&13&14 i3/i5/i7/i9;
Chipset	Q370	Q670
Dedicated GPU *	GeForce GTX 1650 Low Profile	N.A.
RAM	DIMM DDR4-2400/2666	SODIMM DDR5-5600
RAM slots	4	2
RAM speed	2666 MT/s	5600 MT/s
RAM max	64 GB	64 GB
USB ports	USB 3.1 Type C; (5x) USB-A 3.0; (4x) USB-A 2.0;	USB-A 3.0; (3x) USB-A 3.1; USB-C 3.2;
Video ports	(2x) Display Port 1.2;	(3x) Display Port 1.4a;
Other ports	RJ45; Headset; Line-Out;	RJ45; Audio; Line-Out/In;
Optional ports	HDMI2.0b/DP1.2/VGA/USB Type-C (DP Alt Mode); Serial+PS2; Media Card Reader; WiFi antenna;	HDMI 2.0b/Displayport/VGA/PS2/serial/USB Type-C;
SATA ports	3	0
PCI slots	PCIe 3.0 x16; PCIe 3.0 x4 (open ended);	N.A.
M.2 slots	M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)	(2x) M.2 2230/2280 (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays	3.5in/(2x)2.5in; 5.25in (slim);	N.A.
PSU	200 W	130/180 W
Weight	5.26 kg (11.57 lb)	1.36kg (3.00 lb)
Released	2019	2024
Manual	link	link
Price**	Check Price	Check 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 5070 SFF and Dell OptiPlex M Plus 7020 2024

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex M Plus 7020 2024 which was released in 2024. The Dell OptiPlex 5070 SFF is older and entered production in 2019.

If you are looking for the smaller form factor the Dell OptiPlex M Plus 7020 2024 is the right one for you. It is smaller than the Dell OptiPlex 5070 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 Dell OptiPlex M Plus 7020 2024 as it is running a newer generation CPU. This is not to say that Dell OptiPlex 5070 SFF is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell OptiPlex 5070 SFF has 4 RAM slots while the Dell OptiPlex M Plus 7020 2024 has only 2 slot(s). This is not something to worry about. Just make sure you take it into consideration when planning how much RAM you are going to use.

The Dell OptiPlex M Plus 7020 2024 is using the faster 5600 MT/s RAM. The Dell OptiPlex 5070 SFF is slower by supporting RAM speeds of up to 2666 MT/s. In addition, you will be able to install the same amount of RAM in both models, and most probably 64 GB of RAM will be enough for most people. However, if you will be needing more RAM, make sure to check other desktop models too.

Ports

In total the Dell OptiPlex 5070 SFF has 10 USB ports. The Dell OptiPlex M Plus 7020 2024 is inferior in this regard and packs 5 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. It's great that both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. But if you need maximum connectivity, go with the Dell OptiPlex M Plus 7020 2024 as it has 3 USB3.1 ports (the Dell OptiPlex 5070 SFF has 1).

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex M Plus 7020 2024 comes with 3 ports, while the Dell OptiPlex 5070 SFF has only 2. If you are planning to use multiple monitors, the Dell OptiPlex M Plus 7020 2024 is the better choice.

None of the models has an HDMI port. If your monitor supports only the HDMI interface, you will need to buy an adapter. Such adapters are cheap so nothing to worry about.

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 Dell OptiPlex 5070 SFF is better equipped as it comes with 3 SATA slot(s), while the Dell OptiPlex M Plus 7020 2024 has 0 slot(s).

An M.2 SSD can be several times faster than a SATA one. Thus, we are happy to see that both models support the M.2 interface. However, the Dell OptiPlex M Plus 7020 2024 has 1 M.2 slots while the Dell OptiPlex 5070 SFF comes with just 1.

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 M Plus 7020 2024 comes with a decent 180 Watt PSU, but the Dell OptiPlex 5070 SFF has a more powerful one rated at 200 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.