Dell OptiPlex 7040 SFF vs. Lenovo ThinkCentre M92p Small

Comparison and Differences

Dell_OptiPlex_7040_SFF.jpg case front and back pannelLenovo_ThinkCentre_M92p_Small.jpg case front and back pannel
Model
Form factorSmallSmall
CPU optionsIntel Gen6 i3/i5/i7Intel Gen2&3 i3/i5/i7; Celeron; Pentium;
ChipsetQ170Q77
Dedicated GPU *GeForce GT 1030 Low ProfileGeForce GTX 1650 Low Profile
RAMDIMM DDR4-2133 DIMM DDR3-1600
RAM slots44
RAM speed2133 MT/s1600 MT/s
RAM max64 GB32 GB
USB ports(6x) USB-A 3.0; (4x) USB-A 2.0; (4x)USB-A 3.0; (4x)USB-A 2.0;
Video ports(2x) Display Port 1.2; HDMI 1.4;DisplayPort; VGA;
Other portsSerial; (2x) PS2; RJ45; Headset; Line-Out; RJ45; Hdph; (2x) Mic; Line-Out; Line-In; Serial;
Optional portsVGA; Media Card Reader;DisplayPort; (2x) PS2; Serial; Parallel; Media card reader (USB 2.0);
SATA ports34
PCI slotsPCIe 3.0 x16; PCIe 3.0 x4;PCIe 2.0 x16; PCIe 2.0 x1; (2x) PCI;
M.2 slotsM.2 2280 M-key (PCIe 3.0 x4, NVMe) N.A.
Drive bays3.5in/(2x)2.5in; 5.25in (slim); 2.5/3.5in; 5.25in;
PSU180 WTFX 240 W
Weight6.00 kg (13.22 lb)7.5 kg (16.5 lb)
Released20152011
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 7040 SFF and Lenovo ThinkCentre M92p Small

If you are looking for a more modern desktop, then you should go with the Dell OptiPlex 7040 SFF which was released in 2015. The Lenovo ThinkCentre M92p Small is older and entered production in 2011.

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

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 7040 SFF as it is running a newer generation CPU. This is not to say that Lenovo ThinkCentre M92p Small is bad - it can still run some powerful CPUs, albeit being an older generation.

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.

The Dell OptiPlex 7040 SFF is using the faster 2133 MT/s RAM. The Lenovo ThinkCentre M92p Small 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 7040 SFF as it has the ability to run 64 GB of RAM. The Lenovo ThinkCentre M92p Small 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 OptiPlex 7040 SFF has 10 USB ports. The Lenovo ThinkCentre M92p Small is inferior in this regard and packs 8 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 7040 SFF comes with 2 ports, while the Lenovo ThinkCentre M92p Small has only 1. If you are planning to use multiple monitors, the Dell OptiPlex 7040 SFF is the better choice.

The Dell OptiPlex 7040 SFF comes with an HDMI port, while the Lenovo ThinkCentre M92p Small 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 Lenovo ThinkCentre M92p Small is better equipped as it comes with 4 SATA slot(s), while the Dell OptiPlex 7040 SFF has 3 slot(s).

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 7040 SFF. Sadly, the Lenovo ThinkCentre M92p Small 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 7040 SFF comes with a decent 180 Watt PSU, but the Lenovo ThinkCentre M92p Small 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_7040_SFF_motherboard.jpg motherboard layoutLenovo_ThinkCentre_M92p_Small_motherboard.jpg motherboard layout