Dell OptiPlex 3040 SFF vs. Lenovo ThinkCentre M700 Tower

Comparison and Differences

Dell_OptiPlex_3040_SFF.jpg case front and back pannelLenovo_ThinkCentre_M700_Tower.jpg case front and back pannel
Model
Form factorSmallMini Tower
CPU optionsIntel Gen6 i3/i5; Pentium; Celeron; Intel Gen6 i3/i5/i7; Celeron; Pentium;
ChipsetH110H110
Dedicated GPU *GeForce GT 1030 Low ProfileGeForce GTX 1650
RAMDIMM DDR3L-1600 DIMM DDR4-2133
RAM slots22
RAM speed1600 MT/s2133 MT/s
RAM max16 GB32 GB
USB ports(4x) USB-A 3.0; (4x) USB-A 2.0; (4x)USB-A 3.0; (2x)USB-A 2.0;
Video portsDisplay Port 1.2; HDMI 1.4;(2x) DisplayPort 1.2; VGA;
Other portsRJ45; Headset; Line-Out; RJ45; Hdph; (2x) Mic; Line-Out; Line-In; Serial; (2x) PS2;
Optional portsSerial+PS2; VGA; Media Card Reader;2x USB-A 2.0; Serial; Media card reader (USB 2.0);
SATA ports23
PCI slotsPCIe 3.0 x16; PCIe 3.0 x1; PCIe 3.0 x16; (2x) PCIe 2.0 x1;
M.2 slotsN.A.N.A.
Drive bays3.5in/2.5in; 5.25in (slim); (2x) 2.5/3.5in; 5.25in;
PSU180 WATX 250 W
Weight6.1 kg (13.45 lb)12.5 kg (27.5 lb)
Released20152015
Manuallinklink
Price**Check PriceCheck Price

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* 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 3040 SFF and Lenovo ThinkCentre M700 Tower

Both computers, the Dell OptiPlex 3040 SFF and the Lenovo ThinkCentre M700 Tower, were released during the same year - 2015.

If you are looking for the smaller form factor the Dell OptiPlex 3040 SFF is the right one for you. It is smaller than the Lenovo ThinkCentre M700 Tower 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

Both models have have equal amount of ram slots (2 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 Lenovo ThinkCentre M700 Tower is using the faster 2133 MT/s RAM. The Dell OptiPlex 3040 SFF 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 Lenovo ThinkCentre M700 Tower as it has the ability to run 32 GB of RAM. The Dell OptiPlex 3040 SFF 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 3040 SFF has 8 USB ports. The Lenovo ThinkCentre M700 Tower 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.

The DisplayPort is usually the more popular video port used with desktops and laptops, while the HDMI is used predominantly in consumer electronics. That's why, it is good to see that both of the models come with a DisplayPort.

The Dell OptiPlex 3040 SFF comes with an HDMI port, while the Lenovo ThinkCentre M700 Tower 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 M700 Tower is better equipped as it comes with 3 SATA slot(s), while the Dell OptiPlex 3040 SFF has 2 slot(s).

M.2 SSD interface allows you to transfer data with higher speeds compared to the old SATA interface. Unfortunately, neither the Dell OptiPlex 3040 SFF, nor the Lenovo ThinkCentre M700 Tower has one. However, you can still use a SATA SSD drive which should give you satisfactory performance.

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 3040 SFF comes with a decent 180 Watt PSU, but the Lenovo ThinkCentre M700 Tower has a more powerful one rated at 250 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_3040_SFF_motherboard.jpg motherboard layoutLenovo_ThinkCentre_M700_Tower_motherboard.jpg motherboard layout