Ahmad ✓

[image] Just some numbers so you don’t get misled RTX 3090 (7 years old) > 24GB VRAM > Bandwidth: 936.2 GB/s > Bi-directional NVLink 112GB/s RTX PRO 4000 > 24GB VRAM > Bandwidth: 672 GB/s > No Bi-directional NVLink, > need 32 Gen. 5 PCIe Lanes to pool 2 at 64GB/s

[image] How am I connecting the DGX Spark cluster > Mikrotik CRS804-4DDQ 1.6Tbps switch > (4) 400G QSFP-DD to 2x 200G QSFP56 Each DGX Spark has a ConnectX-7 supporting 200Gbps Each cable out of the switch goes into 2 DGX Sparks This allows 8x DGX Sparks cluster at the full 1.6Tbps

[text] Most people think VRAM = model size and that’s why their runs crash GPU memory math is complex and so are the implications Here’s how it actually works in a nutshell ↓

[text] What am I working on? Condensing everything I do into one place: - local AI / LLMs - inference + benchmarking - hardware + cluster builds - LLM research + notes - agent workflows - real-world perf (tokens/sec, concurrency, thermals) All into a single, searchable, indexable

[image] which one of you is this?

[video] New quick video, more coming up Goal isn't just to show how large models perform but also to show how small and medium models scale up as you multiply # of nodes and how Tensor Parallelism performs on Unified Memory hardware

[image] RTX PRO 6000 (96GB VRAM, ~$15K) GIVEAWAY FAQ Q: Cost to enter? A: $0. Free. Q: Do I have to register for GTC? A: Yes, virtual attendance is COMPLETELY FREE Q: Where do I enter? A: Tap the link in my bio, there’s a clear button on the page Q: How do I increase my chances? A:

[text] Tip of the day Always tell your agent to think through the plan comprehensively covering any and all relevant things, and using best practices and up-to-date information as of April 13th, 2026 (replace with today's date)