At Hitaltech we manufacture DIN Rail mounted enclosures for many popular embedded electronics including Arduino, BeagleBone and the immensely popular Raspberry Pi computers.

While the RPi maybe the most successful single-board computer (SBC) to date, it is also possible to use either the Odroid C1, C1+ or the C2

Specification

Odroid C2

  • Amlogic ARM® Cortex®-A53(ARMv8) 1.5Ghz quad-core CPUs
  • Mali™-450 GPU (3 Pixel-processors + 2 Vertex shader processors)
  • 2Gbyte DDR3 SDRAM
  • Gigabit Ethernet
  • HDMI 2.0 4K/60Hz display
  • 265 4K/60FPS and H.264 4K/30FPS capable VPU
  • 40pin GPIOs + 7pin I2S
  • 0 HS400 Flash Storage slot / UHS-1 SDR50 MicroSD Card slot
  • USB 2.0 Host x 4, USB OTG x 1 (power + data capable)
  • Infrared(IR) Receiver

Odroid C1+

  • Amlogic ARM® Cortex®-A5(ARMv7) 1.5Ghz quad-core CPUs
  • Mali™-450 MP2 GPU (OpenGL ES 2.0/1.1 enabled for Linux and Android)
  • 1Gbyte DDR3 SDRAM
  • Gigabit Ethernet
  • 40pin GPIOs + 7pin I2S
  • 5 HS200 Flash Storage slot / UHS-1 SDR50 MicroSD Card slot
  • USB 2.0 Host x 4, USB OTG x 1 (power + data capable)
  • Infrared(IR) Receiver

Raspberry Pi 4

  • Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
  • VideoCore VI (500MHz)
  • 1GB, 2GB or 4GB LPDDR4-3200 SDRAM (depending on model)
  • 2.4 GHz and 5.0 GHz IEEE 802.11ac wireless, Bluetooth 5.0, BLE
  • Gigabit Ethernet
  • 2 USB 3.0 ports; 2 USB 2.0 ports.
  • 40 pin GPIO header
  • 2 × micro-HDMI ports (up to 4kp60 supported)
  • 2-lane MIPI DSI display port
  • 2-lane MIPI CSI camera port
  • 4-pole stereo audio and composite video port
  • Micro-SD card slot for loading operating system and data storage
  • 5V DC via USB-C connector (minimum 3A*)
  • 5V DC via GPIO header (minimum 3A*)

Performance

Previously the Odroid C2 offered superior performance to the older RPi3, however with the significant upgrade of the RPi4 it will almost certainly eclipse the C2 in all-round performance.

Arm Cortex-A72 vs ARM Cortex A53

The A53 is a low powered efficiency-focused core, while the A72 is a big core having more L1 and L2 cache and more complex circuitry.

The A72 core supports out of order execution (It requires a complicated circuit and logic, moreover it is always turned ‘on’ so uses more power but gives you more performance) whereas A53 core do not support it (less performance).

The A72 also has 15 stages pipeline whereas A53 implements 8 stages pipeline. Therefore the A72 will have 15 instruction at the same time in different stages all the time.

Price

The Odroid C1+ is £39.95, then then the Odroid-C2 is £49.94

The new RPI4 starts at £34 for the 2GB model and is £54 for the 4GB model.

Overal – Which is best?

In the past, the Odroid-C2 provided a superior alternative to the RPi3, especially with the inclusion of the gigabit ethernet.

With the release of the RPi4 it has eclipsed the Odroid-C2 both in terms of performance, price and features. There are not many reasons to opt for the C2 over the RPi4, however, the C2 does natively support Android, while it is much more difficult getting the mobile OS on the RPi4.