Here is a side by side comparison between Dell Optiplex 7070 SFF and Dell Optiplex 3070 SFF specs including price, processors, memory, graphics, storage, ports, and more.
HomeProPro National AcademicHome National AcademicChina
Ubuntu 18.04 LTS
Neokylin v6.0
Built-in Apps
Microsoft Office 30 Day Trial
Microsoft Office 30 Day Trial
Camera & Audio
Dell Optiplex 7070 SFF
Dell Optiplex 3070 SFF
Audio
One 2W Speaker
Audio controller
Realtek ALC3234
External Ports
1 x Universal Audio Jack
Front
1 x Audio port
Line-out audio port with re-tasking to Line-in (Rear).
One 2W Speaker
Audio controller
Realtek ALC3234
External Ports
1 x Universal Audio Jack
Front
1 x Audio port
Line-out audio port with re-tasking to Line-in (Rear).
Misc
Dell Optiplex 7070 SFF
Dell Optiplex 3070 SFF
Warranty
Limited Hardware Warranty
Limited Hardware Warranty
Dell Optiplex 7070 SFF vs. Dell Optiplex 3070 SFF
The Dell Optiplex 7070 SFF and the Dell Optiplex 3070 SFF were released in the same year, 2019. Both systems share the same small form factor that commonly can only fit a Mini ITX motherboard, one or two hard disk drives, and supports only a small form factor or half-height graphics card.
Processor
The Central Processing Unit (CPU) is like the brains of your desktop computer. Its performance determines how fast and responsive your PC is. Generally, a processor with newer architecture, more CPU cores, higher TDP (measured in W), and faster clock speed (measured in GHz) tends to be more expensive and run faster than others with older architecture, fewer CPU cores, lower TDP, and lower clock speed.
For Dell Optiplex 7070 SFF, you have options to configure it with a 65W 9th Generation Intel Coffee Lake quad-core Intel Core i3-9100 up to a 65W 8-core Intel Core i9-9900 with a boost speed up to 5.00 GHz.
While Dell Optiplex 3070 SFF has configurations with a 54W Intel Coffee Lake dual-core Intel Celeron G4930 up to a 65W 8-core Intel Core i7-9700 with a boost speed up to 4.70 GHz.
Memory
The Random Access Memory or RAM is the super-fast and temporary storage used to handle all active tasks, apps, and games that will go away when your PC turns off. The more memory your PC has, the better multitasking your PC can handle without having to reload data from slower permanent storage that includes the hard disk drive or solid-state drive.
Fortunately, both PC allows you to upgrade later if you are unsatisfied with the amount of memory on your PC. The Dell Optiplex 7070 SFF has four RAM slots that support up to 64GB of 2666MHz dual-channel DDR4 memory. On the other hand, the Dell Optiplex 3070 SFF has two RAM slots that you can upgrade up to 32GB of 2666MHz dual-channel DDR4 memory.
Ports
Computer ports are the interface for connecting your PC to its peripheral devices or other PCs. The most common peripherals are keyboard, mouse, monitor, flash drive, speaker, and printer. Most of them use Universal Serial Bus (USB) as their connection to your computer. So the PC with more USB ports can connect to more peripherals at the same time.
There is a total number of 10 USB ports available on the Dell Optiplex 7070 SFF, two more than the Dell Optiplex 3070 SFF that has only 8 USB ports. On top of the number of USB ports, the type and version of each USB port are also necessary for determining how fast it is.
The Dell Optiplex 7070 SFF has nine USB Type-A ports and one USB Type-C port. It has four ports that support USB 2.0 (480 Mbps), five ports that support USB 3.2 Gen 1 (5 Gbps), and one port that supports USB 3.2 Gen 2 (10 Gbps).
For Dell Optiplex 3070 SFF, it has eight USB ports that all of which are USB Type-A. The PC has four ports that support USB 2.0 (480 Mbps) and four ports that support USB 3.2 Gen 1 (5 Gbps).
