3TOPS Edge Computing Benchmark | Rockchip RV1126 Series Full Analysis

Rockchip has established a comprehensive portfolio of visual computing chips, spanning from 0.5T to 6T, covering everything from basic smart cameras to advanced industrial vision systems. A standout in this lineup is the RV1126 series, specifically the RV1126B and RV1126B-P. These variants are extensively used in smart security (IPC, smart doorbells, dashcams), industrial vision (factory cameras, inspection equipment), smart automotive and home applications, smart cities, and edge AI scenarios. The RV1126B, with its 3TOPS compute power, customized AI-ISP architecture, dynamic stitching, stabilization, advanced encoding, and hardware-level security, delivers high - performance solutions that enhance AIoT devices from simply "seeing" to truly "understanding."

RV1126B-P is a cost- and package-optimized variant of the RV1126B, retaining full core compute power (CPU/GPU/VPU/NPU) while reducing pins, removing USB 3.0, and trimming auxiliary interfaces (CAM_CLK/SARADC) to lower costs. It targets low-storage, bandwidth-light applications like dashcams and DMS devices. Key advantages include:

• Pin-to-Pin Compatibility: Direct replacement for RV1126 with no hardware redesign needed
• Same Core Performance: Equivalent compute, ISP, and AI capabilities as RV1126B
• Seamless Upgrades: Minimal software changes required for existing RV1126-based products to achieve RV1126B-level performance

This makes RV1126B-P an ideal drop-in upgrade for manufacturers looking to enhance products with minimal R&D investment.

The RV1126B, built on a quad-core Cortex-A53 (1.5GHz) architecture, integrates Rockchip’s in-house 3TOPS NPU. It supports W4A16/W8A16 mixed-precision quantization and Transformer-optimized acceleration, enabling efficient on-device execution of large models and multimodal models with parameters up to 2B.

For imaging, it features a dedicated AI-ISP engine with AI Remosaic technology for "day-and-night adaptive imaging," achieving clear imaging in ultra-low-light conditions (0.01Lux). This addresses nighttime noise issues and, combined with 6-DOF digital stabilization and dual/quadruple-camera dynamic stitching, ensures stable and wide-angle imagery even in motion.

At the system level, RV1126B’s AOV3.0 low-power architecture reduces standby power to 1mW. It supports 24/7 anomaly sound wake-up (e.g., barking, glass breaking, gunshots), balancing energy savings with real-time alerts. The integrated Super Encoding Engine reduces bitrate by 50% without clarity loss, lowering transmission and storage costs.

For security, it offers SM2/SM3/SM4 encryption, TrustZone isolation, and a key management system, providing end-to-end protection from data capture to inference.

• Core Configuration: Quad-core ARM Cortex-A53, 64-bit architecture, supports ARM v8-A instruction set.

• Cache Specification: 32KB L1 I-Cache + 32KB L1 D-Cache per core, with a shared 512KB L2 Cache.

• Extended Features: Integrated Neon Advanced SIMD and FPU, supports TrustZone technology.

• Core Configuration: Quad-core ARM Cortex-A7, 32-bit architecture, supports ARM v7-A instruction set, with integrated Neon Advanced SIMD and FPU.

• Cache Specification: 32KB L1 I-Cache + 32KB L1 D-Cache per core, with a shared 512KB unified L2 Cache.

• Compute Power: 3.0 TOPs INT8 (sparse optimization supported), compatible with INT4/INT8/INT16/FP16 operations.
• Framework Support: TensorFlow, Caffe, Tflite, Pytorch, Onnx NN, Android NN, etc.

• Compute Power and Precision: 2.0 TOPS with INT8/INT16 hybrid operations, supporting 8/16-bit integer convolution.
• Framework Compatibility: TensorFlow, TF-lite, Pytorch, Caffe, ONNX, MXNet, Keras, Darknet, etc., with OpenVX API support.

• 2D Graphics Engine (RGA)
• Supported Data Formats:
  • Input: ARGB/RGB/YUV series formats (including TILE4X4 packaging)
  • Output: ARGB/RGB/YUV420/422 and other 8-bit formats
• Core Functions:
  • Scaling: 1/16× to 16× non-integer scaling (downsampling with averaging/bilinear filtering, upsampling with bicubic filtering)
  • Rotation: 0/90/180/270 degrees with mirroring
  • Additional: Alpha blending, color filling, OSD overlay
• Resolution Limits:
  • Max Input: 8192×8192
  • Max Output: 4096×4096

Both RV1126 and RV1126B support H.265/H.264 video encoding and decoding, enabling efficient compression, storage, and transmission of 4K UHD video. RV1126B specifically supports multi-stream encoding, with a built-in intelligent encoding engine for ultra-HD encoding at up to 8 MP @ 45 FPS. It also features dynamic bitrate adjustment, reducing bitrate by up to 50% compared to traditional CBR mode.

Both RV1126B and RV1126 offer a variety of audio, storage, and peripheral interfaces, and support high-performance external DRAM to meet basic multimedia and peripheral expansion needs.

RV1126B and RV1126 integrate system-level functional modules such as RTC, POR, RMI Ethernet PHY, and audio codecs. RV1126 supports 12Kbit One-Time Programmable (OTP) memory for unique identification and secure storage. RV1126B introduces AI-ISP that can work with the NPU, while RV1126 does not support AI-ISP.

RV1126B and RV1126B-P support dual-channel CANFD, making them suitable for automotive and industrial control applications. RV1126B supports USB 3.0, whereas RV1126B-P and RV1126 only support USB 2.0.

Deployed across multiple industries, the RV1126B series, with its 3TOPS AI power and AI-ISP architecture, is widely used in IPC, smart doorbells, and AI PTZ cameras. Its high integration and low - power features upgrade video recording to smart analysis.