- The Shared Silicon Engine: Both the Milk-V Mars and StarFive VisionFive 2 are powered by the identical StarFive JH7110 SoC, integrating four 64-bit SiFive U74 cores clocked at 1.5GHz with 2MB shared L2 cache and an Imagination BXE-4-32 GPU.
- Form Factor Architecture: Milk-V Mars replicates the credit-card footprint of the Raspberry Pi 3B (with POE header and standard 40-pin GPIO). VisionFive 2 adopts a slightly larger footprint to accommodate dual Gigabit Ethernet ports and a full-size M.2 M-Key NVMe slot.
- Linux Kernel & Toolchain Upstreaming: In 2026, Linux kernel 6.6+ includes native upstream support for the JH7110, enabling standard Debian, Ubuntu Server, and Alpine Linux distributions to boot cleanly with working GPU acceleration via Mesa OpenCL and Vulkan drivers.
- RISC-V Ecosystem Links: Cross-link with our RISC-V Vector Extensions (RVV 1.0) silicon architecture guide and our Tenstorrent Wormhole vs. Groq LPU review.
The global semiconductor landscape is witnessing a seismic shift. For decades, embedded single-board computers were entirely dominated by proprietary ARM architectures licensed by Arm Ltd. Rising licensing royalties and geopolitical trade tensions have accelerated industry investment in RISC-V—an open, royalty-free Instruction Set Architecture (ISA) governed by international open-source consortia.
In the developer community, two single-board computers dominate the accessible RISC-V hardware tier: the StarFive VisionFive 2 and the Milk-V Mars. While both boards share the exact same underlying silicon processor, their hardware peripheral layouts, storage expansions, and thermal designs cater to distinct embedded applications.
Milk-V Mars vs. VisionFive 2: What Is the Difference?
Both SBCs utilize the identical StarFive JH7110 quad-core RISC-V processor. Milk-V Mars is superior for drop-in Raspberry Pi enclosure replacements due to its classic credit-card form factor. VisionFive 2 is superior for server homelabs and networking because it features dual Gigabit Ethernet ports and a full-size M.2 NVMe SSD slot.
Evaluating both boards requires benchmarking real-world CPU compilation speeds, memory throughput, and storage bandwidth.
Hardware Architecture & Benchmark Matrix
The following technical table compares the physical layouts, expansion buses, and benchmark performance of both JH7110 boards:
| Hardware Specification | Milk-V Mars (8GB Edition) | StarFive VisionFive 2 (8GB Edition) |
|---|---|---|
| Main Processor (SoC) | StarFive JH7110 (4x SiFive U74 @ 1.5 GHz) | StarFive JH7110 (4x SiFive U74 @ 1.5 GHz) |
| Physical Board Dimensions | 85mm x 56mm (Standard RPi 3B footprint) | 100mm x 72mm (Larger footprint) |
| Ethernet Networking | 1x Gigabit Ethernet (with PoE header) | 2x Gigabit Ethernet (Dual RJ45) |
| NVMe Storage Expansion | M.2 Key-E (Wi-Fi only, eMMC socket) | M.2 Key-M (PCIe 2.0 x1 for NVMe SSD) |
| 7-Zip Benchmark (Compress / Decompress) | 2,450 MIPS / 4,820 MIPS | 2,460 MIPS / 4,840 MIPS (Equivalent) |
| Idle / Full Load Power Draw | 2.4W / 5.2W | 2.8W / 6.1W (due to dual PHY chips) |
Silicon Anatomy: The StarFive JH7110 SoC
The JH7110 silicon is manufactured on TSMC’s 28nm HPC+ process node. The four SiFive U74 cores are dual-issue, in-order superscalar processors implementing the 64-bit RV64GC architecture. While performance is roughly comparable to an ARM Cortex-A55 core (such as the Raspberry Pi 3B+ or Rockchip RK3328), the instruction execution is 100% open-source.
The onboard Imagination BXE-4-32 GPU provides hardware-accelerated OpenGL ES 3.2, Vulkan 1.2, and OpenCL 1.2 compute. Modern Linux kernels allow engineers to execute computer vision algorithms directly in OpenCL on the GPU, offloading matrix math from the primary RISC-V cores.
Software Reality: Is RISC-V Ready for Production?
Historically, early RISC-V boards suffered from broken vendor-specific Linux kernels with missing driver blobs. Today, over 95% of the standard Debian package repository compiles and runs natively on RV64GC. Docker, Kubernetes (K3s), Nginx, Python, Node.js, and Go execute without code modification.
However, proprietary software compiled exclusively for x86 or ARM64 (such as Google Chrome binaries or proprietary cloud agents) will not run without dynamic binary translation (such as box64-riscv). For open-source server microservices, home automation, and networking routers, the platform is rock solid.
If you are developing portable robotics or need to fit existing Raspberry Pi 3 chassis and PoE hats, the Milk-V Mars provides unmatched mechanical convenience. For homelab micro-servers, firewalls, and storage applications, the StarFive VisionFive 2 is the clear winner, as its onboard M.2 NVMe slot and dual Gigabit Ethernet ports eliminate the severe I/O bottlenecks of MicroSD cards.