64GB VRAM Dual MI50 Rig Built
💡Budget 64GB VRAM AMD rig + open-source quiet shroud for local LLMs – 50 t/s GLM!
⚡ 30-Second TL;DR
What Changed
Dual MI50 GPUs provide 64GB VRAM
Why It Matters
Offers affordable AMD-based high-VRAM setup for local LLM inference, promoting open hardware mods.
What To Do Next
Download MI50 shroud STLs from GitHub and 3D print for your ROCm setup.
Key Points
- •Dual MI50 GPUs provide 64GB VRAM
- •Custom MIT-licensed 3D-printed shroud
- •GLM 4.7 Q8_0 at 50 t/s on llama.cpp
- •155W load power, 18W idle
- •Total build cost ~1500€
🧠 Deep Insight
Background and context from public sources — not the original article. 6 sources cited.
🔑 Enhanced Key Takeaways
- •AMD Instinct MI50 uses Vega 20 GPU architecture on TSMC 7nm FinFET with 3840 stream processors and 60 compute units.
- •MI50 delivers peak performance of 26.5 TFLOPS FP16, 13.3 TFLOPS FP32, 6.6 TFLOPS FP64, and 53 TOPS INT8.
- •Features passive cooling, PCIe 4.0 x16 interface, dual Infinity Fabric links at 92 GB/s bandwidth, and 300W TBP.
- •ROCm support for MI50 is discontinued by AMD, with potential removal in future releases.
🛠️ Technical Deep Dive
- •GPU Architecture: Vega20 (GCN5.1, gfx906 LLVM target) with 3840 stream processors, 60 compute units, peak engine clock 1725 MHz.
- •Memory: 16GB or 32GB HBM2 ECC on 4096-bit bus at 1 GHz, delivering up to 1024 GB/s bandwidth.
- •Interconnect: 2x Infinity Fabric links providing up to 92 GB/s peak bandwidth for multi-GPU scaling.
- •Power and Form Factor: 300W TBP, passive cooling, double-slot full-height PCIe 4.0 x16 card (10.5 inches long), requires 2x 8-pin power connectors.
- •Software: Supports ROCm open ecosystem, OpenCL 2.0, OpenGL 4.6, Vulkan 1.0; full-chip ECC and RAS capabilities for reliability.
🔮 Future ImplicationsAI analysis grounded in cited sources
⏳ Timeline
📎 Sources (6)
Factual claims are grounded in the sources below. Forward-looking analysis is AI-generated interpretation.
- exxactcorp.com — Amd 100 506077 E195930514
- devquasar.com — Amd Radeon Instinct Mi50 Cheap Inference
- convergetp.co.uk — Amd Radeon Instinct Mi50 32gb Graphics Card Radeon Vega 20 32 Gb 1tcptgra 003927
- acmemicro.com — Amd 100 506143 Radeon Instinct Mi50 Accelerator Pcie 4 0 X16 32gb Hbm2 4096 Bit 3840 Stream Processors Passive Cooling
- rocm.docs.amd.com — GPU Arch Specs
- amd.com — Accelerators
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Original source: Reddit r/LocalLLaMA ↗
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