The Arc B580 (12GB) provides 12 GB of memory with 456 GB/s bandwidth, supporting local inference via ROCm and Vulkan acceleration.
Memory
12 GB
Usable Memory Ceiling
12 GB
Bandwidth
456 GB/s
Max Inference Class
14B Models (Q4)
TDP
190W
Estimated memory requirements as context length increases. Curves crossing above the reference line indicate Out of Memory (OOM).
Precision:
Inference throughput, memory compatibility, and generation speeds for open-weights LLMs on Arc B580 (12GB).
Sort by:
Context:
KV Cache:
GPUs:
Maximum model parameter class runnable by weight precision.
Context:
4-bit
14B Models
8-bit
8B Models
16-bit
3B Models
Hardware capacity for local training and adapter fine-tuning.
Context Length:
QLoRA
14B Models
LoRA
8B Models
Full Parameter Training
1B Models
Guidance for optimal precision and operational ceilings on Arc B580 (12GB).
Inference Sweet Spot
Optimal for 8B models across extended context (32k+). 14B models fit comfortably at Q4 precision with standard context.
Bandwidth & Speed Profile
With 456 GB/s aggregate bandwidth, batch size 1 inference operates in a memory-bandwidth bound regime. Generates approximately 101 tok/s on an 8B Q4 model and 12 tok/s on a 70B Q4 model.
Assistant
Online