Dell OptiPlex 5070 SFF vs. Dell OptiPlex 7070 SFF

Comparison and Differences

Dell_OptiPlex_5070_SFF.jpg case front and back pannelDell_OptiPlex_7070_SFF.jpg case front and back pannel
Model
Form factorSmallSmall
CPU optionsIntel Gen8&9 i3/i5/i7; Celeron; Pentium;Intel Gen8&9 i3/i5/i7;
ChipsetQ370Q370
Dedicated GPU *GeForce GTX 1650 Low ProfileGeForce GTX 1650 Low Profile
RAMDIMM DDR4-2400/2666DIMM DDR4-2400/2666
RAM slots44
RAM speed2666 MT/s2666 MT/s
RAM max64 GB64 GB
USB portsUSB 3.1 Type C; (5x) USB-A 3.0; (4x) USB-A 2.0; USB 3.1 Type C; (5x) USB-A 3.0; (4x) USB-A 2.0;
Video ports(2x) Display Port 1.2;(2x) Display Port 1.2;
Other portsRJ45; Headset; Line-Out; RJ45; Headset; Line-Out; Serial; (2x) PS2;
Optional portsHDMI2.0b/DP1.2/VGA/USB Type-C (DP Alt Mode); Serial+PS2; Media Card Reader; WiFi antenna; HDMI2.0b/DP1.2/VGA/USB Type-C (DP Alt Mode); Media Card Reader; WiFi antenna;
SATA ports33
PCI slotsPCIe 3.0 x16; PCIe 3.0 x4 (open ended);PCIe 3.0 x16; PCIe 3.0 x4 (open ended);
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 bays3.5in/(2x)2.5in; 5.25in (slim); 3.5in/(2x)2.5in; 5.25in (slim);
PSU200 W200 W
Weight5.26 kg (11.57 lb)5.26 kg (11.57 lb)
Released20192019
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 5070 SFF and Dell OptiPlex 7070 SFF

Both computers, the Dell OptiPlex 5070 SFF and the Dell OptiPlex 7070 SFF, were released during the same year - 2019.

Both models have the same form factor, meaning reoughtly they have the same phiysical size and form.

Processor

The two models have the same generation of Intel processors. We think that the 9 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

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.

None of the desktops has an advantage when it comes to the speed of the RAM being used. Both models support RAM speeds of up to 2666. 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

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 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

Looking at the Power Supply Unit (PSU) of the two models we don't see any differences. For either of them you get a maximum power of 200 Watts. However be careful, many models have more than one power supply option. When buying your computer, it is a good idea to get a version with the most powerful PSU. This will potentially allow you to upgrade to a more powerful GPU for example.

Motherboard

Dell_OptiPlex_5070_SFF_motherboard.jpg motherboard layoutDell_OptiPlex_7070_SFF_motherboard.jpg motherboard layout