玄铁 C906（XuanTie C906）
T-Head · 玄铁 C 系列
64 bit
In production
Open source
FPUVectorMMU
Bit width
64bit
Max frequency
1000MHz
Pipeline
5 级（5–8 级变长）单发射顺序
CoreMark/MHz
3.7
License
Open source
Maturity
In production
Architecture and ISA
| Vendor / Origin | T-Head（Chinese mainland） |
|---|---|
| Bits / ISA | 64 bit · RV64GCV |
| Pipeline | 5 级（5–8 级变长）单发射顺序 The vendor or source notes are in Chinese in the original |
| Features | FPU Vector MMU |
| Max frequency | 1000 MHz（Frequency depends on process and implementation; treat it as an order-of-magnitude guide） |
Ecosystem and toolchain
| Toolchain | T-Head OCC GCC / RISC-V GNU Toolchain / LLVM |
|---|---|
| Operating systems | Linux / RT-Thread / FreeRTOS / 裸机 |
| Representative silicon | Allwinner D1 / Bouffalo Lab BL808 / Sophgo CV1800B（Milk-V Duo） / Pine64 Ox64 |
| MCUs with this brand in the catalog | 12 MCU (not all of them use this core) |
Sources and notes
The vendor or source notes are in Chinese in the original 产品页：RV64GCV、5–8 级变长流水线、典型 >1GHz（freq 取 1000）、Sv39、L1 8–64KB、AXI4-128、CoreMark 3.7/MHz。向量单元为 RVV 0.7.1、VLEN=128（非 1.0，工具链兼容性需注意）。openc906 RTL 为 Apache-2.0。BL808/D1/CV1800B 为公开确认的量产硅。
Last verified 2026-11-04