There are a number of alternatives to the Raspberry Pi out there, but the Khadas VIM4 sets itself apart in a crowded field with its considerable muscle.

The VIM4 packs an Amlogic A311D2 octa-core processor, 8GB of LPDDR4X RAM, its Wi-Fi 6 connectivity, the 4K/60 HDMI input and output, plus independent USB 3.0 and PCIe (via M.2 socket) interfaces. This successor to the Khadas VIM3 will launch in 2022 on May 10 , and has just started to go around the review circuit. Sadly we will have to wait for launch day for pricing.

Key Features:

Amlogic A311D2 - 2.2GHz Quad core ARM Cortex-A73 and 2.0GHz Quad core Cortex-A53
ARM Mali-G52 MP8(8EE) GPU up to 800MHz
AP6275S Wi-Fi 6 Module (802.11a/b/g/n/ac/ax, 2T2R MIMO with RSDB)
Bluetooth 5.1
USB 3.0 Available
Gigabit Ethernet with WOL support
8GB 64bit LPDDR4X frequency up to 2016MHz
USB-C PD for heavy applications
M.2 Connector (for NVMe SSD, 5G etc)

OOWOW Embedded System:

Install / reinstall OS
Download online OS images
Remote access control via HTTP/SSH
Backup and restore system
Display full device information
Configure device
Online script collection
Rescue shell
Developer and advanced features

Maker Friendly:

Stackable Design
Programmable 32bit MCU
2 Programmable LEDs (Red and White)
XPWR for external Power button
Onboard SPI Flash
Khadas TST
Khadas KBI
3D CAD Files

Business Applications:

Triple independent displays with GSensor
Touch panel support (TP)
Dual MIPI-CSI inputs, for dual camera support
HDMI input, for HDMI passthrough and recording
V-by-One interface for machine vision applications
H.264 / H.265 Encoding
Supports multi-video decoding up to 4Kx2K@60fps+1x1080P@60fps
9-20V VIN Power Input

Rich IO:

40 Pin GPIO Header (USB, I2C, I2S, UART, ADC etc)
8-ch I2S for Microphone Array application (over M.2 Connector)
MIPI-DSI
MIPI-CSI
eDP
VBO

Compatibility:

New VIM Heatsink
Passive Heatsink
3705 Cooling Fan
4G LTE Module
5G LTE Module (coming soon)
M2X WWAN Extension Board (coming soon)
TS050 Touchscreen
Khadas Tone Board
DIY Case 2 (coming soon)
USB-C 30W Adapter (White)
USB-C 24W Adapter (White)
USB-C Cable (White, Male to male)
HDMI Cable (19-Pin)

Note: current TS050 Touchscreen Kit includes an additional FPC cable for VIM4. The original FPC cable is not compatible with VIM4; current DIY Case is not compatible with VIM4 due to the HDMI IN interface. We are working on DIY Case 2 for VIM4.

Incompatible Accessories:

DIY Case (HDMI IN won't work with this case)
IR Remote (VIM4 doesn't have IR Receiver)
M2X Extension (PoE can only supply power. No Ethernet Data Transfer on VIM4)

Specifications:

SoC: Amlogic A311D2 octa-core processor with 4x Arm Cortex-A73 cores @ up to 2.2 GHz and 4x Cortex A53 cores @ up to 2.0 GHz, Arm Mali-G52 MP(8EE) GPU, NPU shown as TBD possibly due to license requirements
System Memory: 8GB LPDDR4X @ 2112 MHz
Storage: 32GB eMMC flash, 32MB SPI flash, microSD card slot
MCU: STMicro STM32G031 Cortex-M0+ microcontroller @ 64 MHz for power management, customizations, and boot media configuration
Video Outputs:

HDMI 2.1 up to 4Kp60
30-pin 0.5mm Pitch FPC Connector for 4-lane MIPI-DSI interface up to 1920 x 1080
eDP interface
LVDS and V-by-One interfaces

Video Input:

1x Micro HDMI port up to 4Kp60

Video:

Decoding:
8Kp24 AV1, H.265, VP9
Supports multi-video decoding up to 4Kx2K@60fps + 1x1080P@60fps
Dolby Vision and HDR10, HDR10+, HLG, and PRIME HDR video processing

Encoding:

4Kp50 H.265 / H.264 60fps decoder

Audio:

8-ch I2S for microphone array applications over M2. connector

Camera:

FPC connector for 2x 4-lane MIPI CSI with dual camera support; 16MP ISP

Connectivity:

Gigabit Ethernet with WoL support
Dual-band 802.11a/b/g/n/ac/ax WiFI 6, 2X2 MIMO and Bluetooth 5.2 via Ampak 6275S module

USB:

1x USB 3.0 Type-A port, 1x USB 2.0 type-A port, 1x USB 2.0 OTG type-C port

Sensor:

KXTJ3-1057 3-axis digital accelerometer

Expansion:

M.2 Socket with single-lane PCIe 2.0, USB 2.0, I2S, I2C, ADC, 100M Ethernet PHY interface, GPIO, MCU_PA2
40-pins 2.54mm pitch header exposing:
CPU signals: USB, I2C, I2S, SPDIF, UART, PWM, ADC
MCU signals: SWIM, NRST, PA1

Misc:

2x IR receivers; RTC & battery header; 4-pin cooling fan header with PWM speed control; 3x user LEDs; power, func and reset buttons; XPWR pads for an external power button