趋近智
The Radeon PRO W7900 (48GB) provides 48 GB of memory with 864 GB/s bandwidth, supporting local inference via ROCm and Vulkan acceleration.
总显存
48 GB
可用显存上限
48 GB
显存带宽
864 GB/s
最大推理模型级别
32B Models (Q4)
热设计功耗
295W
随上下文增长模拟的显存需求。当曲线超过参考线时将导致显存不足(OOM)。
量化精度:
不同量化精度下可运行的最大模型参数级别。
上下文长度:
4位量化
32B Models
8位精度
32B Models
16位全精度
14B Models
本地模型训练与适配器微调支持能力。
微调上下文:
QLoRA
32B Models
LoRA
14B Models
全参数微调
7B-8B Models
Guidance for optimal precision and operational ceilings on Radeon PRO W7900 (48GB).
Inference Sweet Spot
Optimized for 14B models at uncompressed or Q8 precision, and 32B models at Q4 with up to 32k context.
Bandwidth & Speed Profile
With 864 GB/s aggregate bandwidth, batch size 1 inference operates in a memory-bandwidth bound regime. Generates approximately 192 tok/s on an 8B Q4 model and 23 tok/s on a 70B Q4 model.
APX AI
在线