Dell OptiPlex 990 DT vs. Dell OptiPlex Tower 7010 2023

Comparison and Differences

Dell_OptiPlex_990_DT.jpg case front and back pannelDell_OptiPlex_Tower_7010_2023.jpg case front and back pannel
Model
Form factorDesktopMini Tower
CPU optionsIntel Gen2 i3/i5/i7; Celeron; Pentium;Intel Gen 12&13 i3/i5; Celeron; Pentium
ChipsetQ67Q670
Dedicated GPU *GeForce GTX 1650 Low ProfileGeForce GTX 1650 Super
RAMDIMM DDR3-1333DIMM DDR4-3200
RAM slots42
RAM speed1333 MT/s3200 MT/s
RAM max16 GB64 GB
USB ports(10x)USB-A 2.0; (4x) USB-A 2.0; (4x) USB-A 3.0;
Video portsDisplayPort 1.2; VGA;Display Port 1.4a; HDMI 1.4b;
Other portsRJ45; Hdph; (2x) Mic; Line-Out; Line-In; PS2/COM; Serial; Parallel;RJ45(2.5GHz); Audio; Line-Out/In;
Optional portsN.A.HDMI 2.1/Displayport/VGA; Serial
SATA ports33
PCI slotsPCIe 2.0 x16; PCIe 2.0 x4; PCIe 2.0 x1;PCIe 3.0 x16; (2x) PCIe 3.0 x1;
M.2 slotsN.A.M.2 2230/2280 (PCIe 4.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays3.5in; 2.5in; 5.25in;3.5in; (2x) 2.5in; 5.25in (slim);
PSU250 W180/300 W
Weight7.56 kg (16.67 lb)6.52 kg (14.38 lb)
Released20112023
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 990 DT and Dell OptiPlex Tower 7010 2023

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex Tower 7010 2023 which was released in 2023. The Dell OptiPlex 990 DT is older and entered production in 2011.

If you are looking for the smaller form factor the Dell OptiPlex 990 DT is the right one for you. It is smaller than the Dell OptiPlex Tower 7010 2023 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 Tower 7010 2023 as it is running a newer generation CPU. This is not to say that Dell OptiPlex 990 DT is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell OptiPlex 990 DT has 4 RAM slots while the Dell OptiPlex Tower 7010 2023 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 Tower 7010 2023 is using the faster 3200 MT/s RAM. The Dell OptiPlex 990 DT is slower by supporting RAM speeds of up to 1333 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex Tower 7010 2023 as it has the ability to run 64 GB of RAM. The Dell OptiPlex 990 DT can do a bit less at max 16 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.

DisplayPort is crucial for any desktop machine. It is good to see that both models are featuring DisplayPorts. However, the Dell OptiPlex Tower 7010 2023 comes with 2 ports, while the Dell OptiPlex 990 DT has only 1. If you are planning to use multiple monitors, the Dell OptiPlex Tower 7010 2023 is the better choice.

The Dell OptiPlex Tower 7010 2023 comes with an HDMI port, while the Dell OptiPlex 990 DT 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.

If you want the fastest transfer speeds for your SSD, an M.2 interface is crucial. Thus, if the M.2 SSD slot is a mandatory requirement for you, go with the Dell OptiPlex Tower 7010 2023. Sadly, the Dell OptiPlex 990 DT has no such slot, and you will be forced to use the SATA interface instead.

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 990 DT comes with a decent 250 Watt PSU, but the Dell OptiPlex Tower 7010 2023 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_990_DT_motherboard.jpg motherboard layoutDell_OptiPlex_Tower_7010_2023_motherboard.jpg motherboard layout