Arc Pro B50 vs Arc Pro B65
With 32GB on board versus 16GB for the Arc Pro B50, the Arc Pro B65 carries more headroom for large models and memory-hungry workloads. Its memory bandwidth is 171% higher (608 GB/s vs 224 GB/s), translating directly to faster inference throughput.
Maximum Capacity Reached. Remove a model to add another. (2/2)
Comparable or lower specs
Arc Pro B50 vs Arc Pro B65: In-Depth Breakdown
VRAM: Arc Pro B50 vs Arc Pro B65
With 32GB of VRAM against the Arc Pro B50's 16GB, the Arc Pro B65 has a 16GB edge. VRAM is what determines whether a model fits without quantization at all — a 70B-parameter model in FP16 needs around 140GB, and smaller models still benefit from spare capacity. That extra headroom lets the Arc Pro B65 load bigger models and run larger production batch sizes.
Inference Speed: Memory Bandwidth
Memory bandwidth determines how quickly data is fed to the compute units — it's the main bottleneck for autoregressive inference (token generation in LLMs). The Arc Pro B65 delivers 608 GB/s versus 224 GB/s on the Arc Pro B50, a 171% edge. For models already loaded into VRAM, token generation speed scales closely with this number: the Arc Pro B65 will produce tokens proportionally faster in bandwidth-bound workloads.
AI Training & Compute
FP32 throughput is the metric that matters most for training, scientific simulation, and rendering work. The Arc Pro B65 posts 12.3 TFLOPS versus 10.65 TFLOPS on the Arc Pro B50, a 15% compute lead. Expect training jobs and heavy matrix math to finish proportionally sooner on the Arc Pro B65.
Which should you buy: Arc Pro B50 or Arc Pro B65?
For large-model workloads bottlenecked on VRAM, the Arc Pro B65 is the better pick. The Arc Pro B50 costs less and holds up fine if your models fit inside its 16GB.
Frequently Asked Questions
Can the Arc Pro B50 or Arc Pro B65 run large language models?
Which is faster for LLM inference, the Arc Pro B50 or the Arc Pro B65?
Which is better for AI training?
Which should you buy: Arc Pro B50 or Arc Pro B65?
Technical Specifications Comparison
Architecture & Cores
| Specification | Arc Pro B50 | Arc Pro B65 |
|---|---|---|
| Architecture | Xe2-HPG | Xe2-HPG |
| CUDA Cores (Shading Units / Shading Units) | 2,048 | 2,560✓ |
Memory
| Specification | Arc Pro B50 | Arc Pro B65 |
|---|---|---|
| VRAM Capacity | 16 GB | 32 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 128-bit | 256-bit✓ |
| Bandwidth | 224 GB/s | 608 GB/s✓ |
Connectivity & Power
| Specification | Arc Pro B50 | Arc Pro B65 |
|---|---|---|
| Interface | PCIe 5.0 x8 | PCIe 5.0 x16 |
| TDP | 70 W✓ | 200 W |
| Released | Sep 2025 | Mar 2026 |
Workstation
| Specification | Arc Pro B50 | Arc Pro B65 |
|---|---|---|
| FP32 (TFLOPS) | 10.65 TFLOPS | 12.3 TFLOPS✓ |
| ECC | Yes | Yes |
| NVLink | No | No |
| Form factor | low-profile | dual-slot |