Is STM32H7 or i.MX RT1062 better for object detection?

STM32H7 scores higher (90 vs 85) for object detection. The STM32H7's 1024 KB SRAM and 480 MHz clock provide a slight edge. However, ecosystem fit and connectivity needs should also influence your decision.

What's the price difference between STM32H7 and i.MX RT1062?

STM32H7 chips cost $8-20, dev boards $30-80. i.MX RT1062 runs $6-12 per chip, $25-40 for dev boards. Pricing is comparable at volume.

Can both STM32H7 and i.MX RT1062 use TensorFlow Lite?

Yes, the STM32H7 (cortex-m7) supports TFLite Micro. The i.MX RT1062 (cortex-m7) also supports TFLite Micro.

Hardware Comparison

STM32H7 vs i.MX RT1062 for Object Detection

Winner: STM32H7 (score 90 vs 85)

Specs Comparison

Spec	STM32H7	i.MX RT1062
Manufacturer	STMicroelectronics	NXP
Architecture	ARM Cortex-M7 @ 480 MHz	ARM Cortex-M7 @ 600 MHz
SRAM	1024 KB	1024 KB
Flash	2 MB	8 MB
ML Acceleration	DSP, FPU	DSP, FPU
Connectivity	Ethernet, USB OTG HS/FS	Ethernet, USB OTG HS/FS
Chip Price	$8-20	$6-12
Object Detection Score	90 (Excellent)	85 (Excellent)

Detailed Comparison

Both the STM32H7 and i.MX RT1062 are strong choices for object detection. The difference in compatibility scores (90 vs 85) is marginal, so the decision comes down to ecosystem preference, connectivity requirements, and budget. Memory: The STM32H7 provides 1024 KB SRAM, while the i.MX RT1062 offers 1024 KB. For object detection's 256 KB minimum requirement, both provide equivalent capacity. Performance: The STM32H7 runs at 480 MHz (cortex-m7, DSP) vs the i.MX RT1062 at 600 MHz (cortex-m7, DSP). Inference performance is comparable at these clock speeds. Connectivity: STM32H7 offers Ethernet, USB OTG HS/FS. i.MX RT1062 provides Ethernet, USB OTG HS/FS. Cost: STM32H7 chips run $8-20 (dev boards $30-80), while i.MX RT1062 chips cost $6-12 (dev boards $25-40). The i.MX RT1062 wins on cost per unit. Choose the STM32H7 when: the STMicroelectronics ecosystem fits your toolchain, or hardware variety is important (22 PlatformIO boards). Choose the i.MX RT1062 when: fastest possible inference is required, the NXP toolchain is preferred, or you need crossover mcu (600 mhz cortex-m7).

Explore Each Platform

STM32H7 Hardware Guides

STMicroelectronics cortex-m7 — 1024 KB SRAM, 480 MHz

i.MX RT1062 Hardware Guides

NXP cortex-m7 — 1024 KB SRAM, 600 MHz

FAQ

Is STM32H7 or i.MX RT1062 better for object detection?: STM32H7 scores higher (90 vs 85) for object detection. The STM32H7's 1024 KB SRAM and 480 MHz clock provide a slight edge. However, ecosystem fit and connectivity needs should also influence your decision.
What's the price difference between STM32H7 and i.MX RT1062?: STM32H7 chips cost $8-20, dev boards $30-80. i.MX RT1062 runs $6-12 per chip, $25-40 for dev boards. Pricing is comparable at volume.
Can both STM32H7 and i.MX RT1062 use TensorFlow Lite?: Yes, the STM32H7 (cortex-m7) supports TFLite Micro. The i.MX RT1062 (cortex-m7) also supports TFLite Micro.

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