Dell OptiPlex 5090 SFF vs. Dell OptiPlex 7070 MT

Comparison and Differences

Dell_OptiPlex_5090_SFF.jpg case front and back pannelDell_OptiPlex_7070_MT.jpg case front and back pannel
Model
Form factorSmallMini Tower
CPU optionsIntel Gen10&11 i3/i5/i7;Intel Gen8&9 i3/i5/i7;
ChipsetQ570Q370
Dedicated GPU *AMD Radeon RX 6400 Low ProfileGeForce GTX 1650 Super
RAMDIMM DDR4-2666/2933/3200DIMM DDR4-2400/2666
RAM slots44
RAM speed3200 MT/s2666 MT/s
RAM max128 GB64 GB
USB portsUSB 3.1 Type C; (x5) USB-A 3.0; (x4) USB-A 2.0;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; Card reader;RJ45; Headset; Line-Out; Serial; (2x) PS2;
Optional portsVGA /DisplayPort 1.4/HDMI 2.0b/USB 3.2 Gen2 Type-C Port Alt-mode;HDMI2.0b/DP1.2/VGA/USB Type-C (DP Alt Mode); Media Card Reader; WiFi antenna;
SATA ports44
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, NVMe); M.2 2230 (WiFi/BT) M.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays2.5in3.5in/5.25in; (2x) 2.5in; 5.25in (slim);
PSU200/300 W260/360 W
Weight5.65 kg (12.53 lb)7.93 kg (17.49 lb)
Released20212019
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 5090 SFF and Dell OptiPlex 7070 MT

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 5090 SFF which was released in 2021. The Dell OptiPlex 7070 MT is older and entered production in 2019.

If you are looking for the smaller form factor the Dell OptiPlex 5090 SFF 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 5090 SFF 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

Both models have have equal amount of ram slots (4 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 5090 SFF is using the faster 3200 MT/s RAM. The Dell OptiPlex 7070 MT 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 5090 SFF as it has the ability to run 128 GB of RAM. The Dell OptiPlex 7070 MT can do a bit less at max 64 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 10. If this is not enough, using a USB hub is always a viable option. Both of the models have USB 3.1 ports which will allow you to exchange data with your peripherals at up to 10Gb/s. This is especially crucial if you are using external drives on a regular basis.

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.

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 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 4 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 Dell OptiPlex 5090 SFF comes with a decent 300 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, especially if you plan to upgrade to a powerful GPU.

Motherboard

Dell_OptiPlex_5090_SFF_motherboard.jpg motherboard layoutDell_OptiPlex_7070_MT_motherboard.jpg motherboard layout