Dell OptiPlex 5040 MT vs. Dell OptiPlex 7040M

Comparison and Differences

Dell_OptiPlex_5040_MT.jpg case front and back pannelDell_OptiPlex_7040M.jpg case front and back pannel
Model
Form factorMini TowerMicro
CPU optionsIntel Gen6 i3/i5/i7Intel Gen6 i3/i5/i7
ChipsetQ170Q170
Dedicated GPU *GeForce GTX 1650 SuperN.A.
RAMDIMM DDR3L-1600 SODIMM DDR4-2133
RAM slots42
RAM speed1600 MT/s2133 MT/s
RAM max16 GB32 GB
USB ports(6x) USB-A 3.0; (4x) USB-A 2.0; (6x) USB-A 3.0
Video ports(2x) Display Port 1.2; HDMI 1.4; Display Port 1.2; HDMI 1.4;
Other portsSerial; (2x) PS2; RJ45; Headset; Line-Out; RJ45; Headset; Line-Out;
Optional portsVGA; Media Card Reader;WiFi antenna; Display Port 1.2; VGA; Serial; Serial+PS2;
SATA ports41
PCI slotsPCIe 3.0 x16; PCIe 3.0 x16 (wired x4); PCIe 3.0 x1; PCI; N.A.
M.2 slotsM.2 2280 M-key (PCIe 3.0 x4, NVMe) M.2 2280 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays3.5in/5.25in; (2x) 2.5in; 5.25in (slim);2.5in
PSU240 W65 W
Weight8.00 kg (17.64 lb)1.41 kg (3.12 lb)
Released20152015
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 5040 MT and Dell OptiPlex 7040M

Both computers, the Dell OptiPlex 5040 MT and the Dell OptiPlex 7040M, were released during the same year - 2015.

If you are looking for the smaller form factor the Dell OptiPlex 7040M is the right one for you. It is smaller than the Dell OptiPlex 5040 MT and will fit more easily under your desk.

Processor

The two models have the same generation of Intel processors. We think that the 6 generation of Intel Processors have enough power to execute all of the home and office tasks that most people will care to do.

Memory

The Dell OptiPlex 5040 MT has 4 RAM slots while the Dell OptiPlex 7040M 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 7040M is using the faster 2133 MT/s RAM. The Dell OptiPlex 5040 MT is slower by supporting RAM speeds of up to 1600 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell OptiPlex 7040M as it has the ability to run 32 GB of RAM. The Dell OptiPlex 5040 MT can do a bit less at max 16 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the Dell OptiPlex 5040 MT has 10 USB ports. The Dell OptiPlex 7040M is inferior in this regard and packs 6 USB ports. In any case, if you miss USB ports, you can always purchase a USB hub. 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 5040 MT comes with 2 ports, while the Dell OptiPlex 7040M has only 1. If you are planning to use multiple monitors, the Dell OptiPlex 5040 MT is the better choice.

In case your monitor supports HDMI only, you will be happy to hear that both models come with an HDMI port.

SATA ports are placed on the system board and it 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 5040 MT is better equipped as it comes with 4 SATA slot(s), while the Dell OptiPlex 7040M has 1 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 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 7040M comes with a decent 65 Watt PSU, but the Dell OptiPlex 5040 MT has a more powerful one rated at 240 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_5040_MT_motherboard.jpg motherboard layoutDell_OptiPlex_7040M_motherboard.jpg motherboard layout