Dell G5 5090 vs. Dell OptiPlex 7040M

Comparison and Differences

Dell_G5_5090.jpg case front and back pannelDell_OptiPlex_7040M.jpg case front and back pannel
Model
Form factorMini TowerMicro
CPU optionsIntel Gen9 i3/i5/i7/i9;Intel Gen6 i3/i5/i7
ChipsetH370Q170
Dedicated GPU *GeForce RTX 2080N.A.
RAMDIMM DDR4-2666SODIMM DDR4-2133
RAM slots42
RAM speed2666 MT/s2133 MT/s
RAM max64 GB32 GB
USB ports(5x) USB 3.0 Type A; (4x) USB-A 2.0; USB 3.0 Type C;(6x) USB-A 3.0
Video portsN/A Display Port 1.2; HDMI 1.4;
Other portsRJ45; Headset; Mic; Line-Out; Front, side, center, rare outputs;RJ45; Headset; Line-Out;
Optional portsN.A.WiFi antenna; Display Port 1.2; VGA; Serial; Serial+PS2;
SATA ports31
PCI slotsPCIe 3.0 x16; PCIe 3.0 x4; PCIe 3.0 x1;N.A.
M.2 slotsM.2 2230 (WiFi/BT); M.2 2230/2280 M-key (PCIe 3.0 x4, NVMe);M.2 2280 M-key (PCIe 3.0 x4, NVMe); M.2 2230 (WiFi/BT)
Drive bays(2x) 2.5in; 3.25in;2.5in
PSU360/460 W65 W
Weight8.20 kg (18.07 lbs)1.41 kg (3.12 lb)
Released20192015
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 G5 5090 and Dell OptiPlex 7040M

If you are looking for a more modern desktop, then you should go with the Dell G5 5090 which was released in 2019. The Dell OptiPlex 7040M is older and entered production in 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 G5 5090 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 G5 5090 as it is running a newer generation CPU. This is not to say that Dell OptiPlex 7040M is bad - it can still run some powerful CPUs, albeit being an older generation.

Memory

The Dell G5 5090 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 G5 5090 is using the faster 2666 MT/s RAM. The Dell OptiPlex 7040M is slower by supporting RAM speeds of up to 2133 MT/s. Additionally, if you will be needing a lot of RAM, better go for the Dell G5 5090 as it has the ability to run 64 GB of RAM. The Dell OptiPlex 7040M can do a bit less at max 32 GB. Most of the times, this should be sufficient for the majority of users.

Ports

In total the Dell G5 5090 has 9 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. What is nice about the Dell G5 5090, is that it has 2 USB 3.1 port(s) which allows transfer of up to 10Gb/s. Unfortunately, the Dell OptiPlex 7040M has no such port, thus restricting your transfer speeds significantly. For people who want to use external drives on regular basis, this might be an issue.

Unfortunately, only the Dell OptiPlex 7040M has a DisplayPort. The Dell G5 5090 does not have one? Don't worry though, nowadays video adapters are cheap and you can get almost any combination of conversion types.

The Dell OptiPlex 7040M comes with an HDMI port, while the Dell G5 5090 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 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 G5 5090 is better equipped as it comes with 3 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 G5 5090 has a more powerful one rated at 460 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_G5_5090_motherboard.jpg motherboard layoutDell_OptiPlex_7040M_motherboard.jpg motherboard layout