Dell OptiPlex 5090 MT case front and back pannel

Dell OptiPlex 5090 MT

Specification and Upgrade Options

The Dell OptiPlex 5090 MT is a pre-built business desktop computer first released in 2021. The motherboard is using the Q570 chipset and supports 11th gen Intel Core processor, and 128GB of DIMM DDR4-2666/2933/3200 memory.

Dell OptiPlex 5090 MT is a Mini Tower form factor computer. The Mini Tower is the largest chassis in the business class desktops segment. If you are looking for a system with maximum upgradability, Dell OptiPlex 5090 MT is a good option. Models in this category usually have 4x PCIe slots, several drive bays and better cooling.

Specification

Model
Form factorMini Tower
CPU optionsIntel Gen10&11 i3/i5/i7;
ChipsetQ570
Dedicated GPU *GeForce GTX 1660 Super
RAMDIMM DDR4-2666/2933/3200
RAM slots4
RAM speed3200 MT/s
RAM max128 GB
USB portsUSB 3.1 Type C; (x5) USB-A 3.0; (x4) USB-A 2.0;
Video ports(4x) Display Port 1.4; (x3) HDMI 2.0b; VGA;
Other portsRJ45; Headset; Line-Out/In;
Optional portsVGA /DisplayPort 1.4/HDMI 2.0b/USB 3.2 Gen2 Type-C Port Alt-mode; SD Card;
SATA ports4
PCI slotsPCIe 4.0 x16; PCIe 4.0 x4; (x2) PCIe x1;
M.2 slotsM.2 2280/2230 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays(x2) 3.5in; (2x) 2.5in; 5.25in (slim);
PSU260/300/360 W
Weight7.24 kg (15.95 lb)
Released2021
Manuallink
Price**Check Price

* 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.
** As an Amazon associate we earn from qualifying purchases.

Windows 11 compatibility

Yes, Dell OptiPlex 5090 MT is compatible with Windows 11. According to Windows 11 specification, all models that have Intel 8th Gen processors (or newer) with TPM 2.0 support and a UEFI BIOS with Secure boot, are eligible to upgrade form Windows 10 to Windows 11 through Windows Update.

Processor

The Dell OptiPlex 5090 MT supports Gen11 Intel Core technology. The 11th generation of Intel Core processors were released in 2020. The main differences from the previous generations are the significant improvement in base and boost clock. A cool new feature is the presence of Thunderbolt 4 (which includes also USB4) and PCI Express 4.0 (not for Pentium and Celeron).

Best CPUs for Dell OptiPlex 5090 MT upgrade:

Model Cores (Threads) Base frequency Turbo
Core i5 11500 6(12) 2.7 GHz 4.6 GHz
Core i5 11600 6(12) 2.8 GHz 4.8 GHz
Core i7 11700 8(16) 2.5 GHz 4.9 GHz
Core i7 11700F 8(16) 2.5 GHz 4.9 GHz
Core i9 11900 8(16) 2.5 GHz 5.1 GHz
Core i9 11900F 8(16) 2.5 GHz 5.1 GHz

Memory

Dell OptiPlex 5090 MT has four RAM slots and supports dual channel memory configuration. This is sufficient for almost any use case and especially in situations where the workload calls for more RAM.

To cover the needs of your OS, games, and apps, Dell OptiPlex 5090 MT supports up to 128 GB of DIMM DDR4-2666/2933/3200 RAM. For office work, home use, and light gaming we recommend 8GB of RAM. For everything else, use 16GB or more.

Faster RAM speeds permit your processor to access the data stored inside the memory faster. This is important for the overall speed of your system. The motherboard of the Dell OptiPlex 5090 MT supports RAM speeds of up to 3200 MT/s.

Wi-Fi Support

Dell OptiPlex 5090 MT comes equipped with an on-board M.2 2230 (WiFi/BT) slot. This slot is used for a Wi-Fi and Bluetooth combo card.

Best Wireless adapters for Dell OptiPlex 5090 MT:

Model Speed Frequency Interface
WiFi 6E (Gig+) Kit 3000 Mbit/s 2.4GHz / 5GHz NGFF M.2 A/E Key
Rekong AX210 3000 Mbit/s 2.4GHz / 5GHz NGFF M.2 A/E Key
Gigabyte GC-Wbax200 2400 Mbit/s 2.4GHz / 5GHz PCIe
TP-Link Archer TX50E 2400 Mbit/s 2.4GHz / 5GHz PCIe
TP-Link Archer T9UH 1300 Mbit/s 2.4GHz / 5GHz USB 3.0

Ports

Ports are important and often people don't think about them when buying a PC. For example, if you don't have enough USB ports, using external devices becomes problematic. Before you buy any system, considering your use case, check the number of external devices you are going to use and plan the number of the extension ports accordingly.

USB ports

The Dell OptiPlex 5090 MT comes with ten USB ports in total. Having more USB ports is always better, but also pay attention to the version of those USB ports. Higher version ports support faster transfer speeds. It is nice to see that the model has a USB 3.1 port. This interface is using 10Gb/s connection and it's very useful when you transfer big files to external drives.

Video ports

The DisplayPort (DP) is the most widely used digital interface for transmitting digital video and audio between display devices and PCs. It is good to see that the Dell OptiPlex 5090 MT is featuring a DisplayPort 1.4. The post version is important if you target higher resolutions with high refresh rate. Although, ver. 1.2 is completely fine for most users, if possible, aim for the higher versions DisplayPort.

The HDMI port is another digital video port you can use to connect external display. It has very similar capabilities to the DisplayPort with few exceptions. Dell OptiPlex 5090 MT comes with two HDMI 2.0b port(s) on the motherboard. In case your monitor supports another interface, you can always use an adapter.

*Please keep in mind in order to use the video ports available through the motherboard, you need a CPU with integrated graphics card. If you have a dedicated GPU, use his ports instead.

SSD storage - M.2 sockets and SATA ports

The SATA port is one of the places where you can connect a stora gedevice. The Dell OptiPlex 5090 MT comes with four SATA port(s). Not enough SATA ports might limit your options for additional storage devices. Think about your use case and decide if the SATA ports provided by this model will be sufficient.

Dell OptiPlex 5090 MT has also one M.2 socket(s) that supports both PCIe NVMe (PCIe 3.0 x4) and SATA M.2 drives with speed of up to 3 GB/s. This configuration works very well for both gaming and work related tasks.

The M.2 PCIe SSD connector in combination with an NVMe drive allows for higher transfer rates, compared to the old SATA interface. In some situations, NVMe device connected to the M.2 PCIe socket can be more than 5 times faster.

Best PCIe NVMe drives for Dell OptiPlex 5090 MT storage upgrade:

Model Form factor / Interface NAND type DRAM
Samsung 980 PRO SSD M.2/x4 PCIe 4.0/NVMe TLC Yes
CORSAIR MP600 PRO M.2/x4 PCIe 4.0/NVMe TLC Yes
SAMSUNG 970 EVO Plus M.2/x4 PCIe 3.0/NVMe TLC Yes
Western Digital Black SN750 M.2/x4 PCIe 3.0/NVMe TLC Yes
Kingston A2000 M.2/x4 PCIe 3.0/NVMe TLC Yes

Power Supply

The Dell OptiPlex 5090 MT comes with a 360 Watt PSU. Having a power supply with high power rating is important, especially if you are doing upgrade with addtional components, like dedicated GPU and more HDDs. Will this 360 W be enough, it all depends on your specific use. Please keep in mind that some models might have more than one PSU option. Whenever possible get the most powerful one, as it might make future upgrades easier.

Motherboard

Dell_OptiPlex_5090_MT_motherboard.jpg motherboard layout