NVIDIA Jetson AGX Thor T5000 128GB vs NVIDIA Jetson AGX Thor T4000 64GB

The Jetson AGX Thor T4000 64GB is the newer part: Blackwell, launched in 2026, against the Jetson AGX Thor T5000 128GB's Blackwell from 2025. Newer architectures typically add lower-precision formats and better throughput per watt, so check the precision rows your workload actually uses.

Dense throughput for the Jetson AGX Thor T5000 128GB against the Jetson AGX Thor T4000 64GB: FP32 8.1 vs 4.7 TFLOPS, FP8 517 vs 300 TFLOPS. Sparse figures, where the vendor publishes them, appear under each dense number in the performance table.

Memory is 128 GB against 64 GB, fed at 273 GB/s versus 273 GB/s. More memory per GPU means larger models fit before you have to shard across cards, which often matters more than raw TFLOPS for inference.

Power budgets are 130 W for the Jetson AGX Thor T5000 128GB and 90 W for the Jetson AGX Thor T4000 64GB. At FP32 that works out to 0.06 against 0.05 TFLOPS per watt.

For LLM training and inference, weight the FP8 and FP16 rows and memory capacity most heavily. For scientific and HPC workloads, the FP64 row is the one to read.