Dell OptiPlex 5080M vs. Dell OptiPlex 7070 MT

Comparison and Differences

Dell_OptiPlex_5080M.jpg case front and back pannelDell_OptiPlex_7070_MT.jpg case front and back pannel
ModelDell OptiPlex 5080MDell OptiPlex 7070 MT
Form factorMicroMini Tower
CPU options Intel Gen10 i3/i5/i7; PentiumIntel Gen8&9 i3/i5/i7;
ChipsetQ470Q370
Dedicated GPU *N.A.GeForce GTX 1650 Super
RAMSODIMM DDR4-2666/2933DIMM DDR4-2400/2666
RAM slots24
RAM speed2933 MT/s2666 MT/s
RAM max64 GB64 GB
USB portsUSB 3.1 Type C; (5x) USB-A 3.0;USB 3.1 Type C; (5x) USB-A 3.0; (4x) USB-A 2.0;
Video ports(2x) Display Port 1.4;(2x) Display Port 1.2;
Other portsRJ45; Headset; Line-Out/In; RJ45; Headset; Line-Out; Serial; (2x) PS2;
Optional portsHDMI2.0b/DP1.4/VGA/USB Type-C (DP Alt Mode); Serial; Serial+PS2; (2x) WiFi antenna;HDMI2.0b/DP1.2/VGA/USB Type-C (DP Alt Mode); Media Card Reader; WiFi antenna;
SATA ports14
PCI slotsN.A.PCIe 3.0 x16; PCIe 3.0 x16 (wired x4); PCIe 3.0 x1; PCI;
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, SATA); M.2 2230 (WiFi/BT) M.2 2280/2230 M-key (PCIe 3.0 x4, SATA); M.2 2230 (WiFi/BT)
Drive bays2.5-inch3.5-inch/5.25-inch; (2x) 2.5-inch; 5.25-inch (slim);
PSU90/130 W260/360 W
Weight1.38 kg (3.04 lb)7.93 kg (17.49 lb)
Released20202019
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 5080M and Dell OptiPlex 7070 MT

If a more modern desktop is what you are looking for, then you should go with the Dell OptiPlex 5080M which was released in 2020. The Dell OptiPlex 7070 MT is older and entered production in 2019.

If you are looking for the smaller form factor the Dell OptiPlex 5080M is the right one for you. It is smaller than the Dell OptiPlex 7070 MT 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 5080M as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7070 MT is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell OptiPlex 7070 MT has 4 RAM slots while the Dell OptiPlex 5080M 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 Dell OptiPlex 5080M is using the faster 2933 MT/s RAM. The Dell OptiPlex 7070 MT is slower by supporting RAM speeds of only 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 7070 MT has 10 USB ports. The Dell OptiPlex 5080M is inferior in this regard and packs 6 USB ports. Both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10 Gb/s.

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

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 Dell OptiPlex 7070 MT is better equipped as it comes with 4 SATA slot(s).

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 buy SATA drives anymore.

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 5080M comes with a decent 130 Watt PSU, but the Dell OptiPlex 7070 MT has a more powerful one rated at 360 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_5080M_motherboard.jpg motherboard layoutDell_OptiPlex_7070_MT_motherboard.jpg motherboard layout

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