Recent Blog Posts
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NVIDIA Throws Official Support Behind Eight-Node DGX Spark Clusters
by Chris DePuy / November 2, 2026 NVIDIA has announced official support for eight-node DGX Spark clusters. The configuration scales unified memory from 128 GB on one machine to 1 TB across eight. As a result, frontier-class models fit on the desk. The company detailed the configuration, the benchmark data, and the supporting software on…
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SCINTIL Photonics at OCP 2026: The Network Becomes the Manufacturing Bottleneck
by Chris DePuy, 650 Group / November 4, 2026. At the 2026 OCP Global Summit, SCINTIL Photonics pitched its laser-integration process. CEO Matt Crowley made the company’s case to Alan Weckel, Founder and Technology Analyst at 650 Group. 650 Group filmed the exchange and published it on its YouTube channel, the first two parts of…
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TensorFold 1.0.0 and Multi-Model gr8: Two Release Notes Date the Desk-Side Stack
by Chris DePuy, 650 Group / November 3, 2026. On November 2, the TensorFold Mac application and the gr8 cluster stack, two community inference projects this blog has followed all autumn, published release notes that move this hardware tier toward installed software. Ash Hart, the maintainer of the TensorFold Mac application, announced version 1.0.0, “our…
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How to Flash DeepSeek V4.1 on an RTX 3090 Fidelity Check
by Chris DePuy, 650 Group / November 2, 2026 On October 29, an operator published a one-card Windows build for the full DeepSeek V4.1 Flash 1017 checkpoint. It ran on a single RTX 3090 with 192 GB memory and, in DGX Spark terms, served 41 tokens per second. The measurement that carries the story is…
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DGX Spark Operators Add CPU Clock Caps to the Thermal Playbook
by Chris DePuy, 650 Group / November 1, 2026 A two-box DGX Spark operator capped the CPU side of a GB10 pair on Friday, October 30. The operator’s post reports the peak system-on-chip temperature under a ten-core load falling from 94 to 74 degrees Celsius, at a cost of 5 percent in prefill throughput and…
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The RTX 30-Series Tensor Unlock: What the Measured Gains Cover and What They Miss
by Chris DePuy, 650 Group / October 29, 2026 An open-source Linux kernel module restores the full FP16/BF16 tensor rate on NVIDIA’s consumer RTX 30-series cards. The first complete benchmark suite in the lane, published this week by an independent operator, measured the matrix-side gain at 50 to 60 percent, and every report in the…
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New GLM-5.3 on Four DGX Sparks: Results and Media Studio
On October 16, a community recipe put the full GLM-5.3 on four DGX Sparks, at tensor parallelism 4. The model is GLM-5.3 (753B), and the four NVIDIA DGX Spark units run it. Underneath is gr8, a from-scratch inference stack for the GB10 processor. The same weekend, keys/Wasserman AI Studio announced release 2.8.0 for Mac and…
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Google Puts TPUv7 Through an Outside Agentic Benchmark
by Chris DePuy, 650 Group / October 25, 2026 Google’s first TPUv7 submission to an outside agentic-inference benchmark landed this week. The operator’s October 14, 2026 announcement reports FP8 results served through vLLM at 1.67x better performance per dollar than NVIDIA’s GB300 NVL72 at FP4 the operator’s announcement thread. The submission is the first submitted…
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DeepSeek Open-Sources DeepInfer, NVIDIA Answers Quietly With Flare
by Chris DePuy, 650 Group / October 22, 2026 In the early hours of October 20, Pacific time, DeepSeek announced DeepInfer, its in-house inference framework, as fully open source under the Apache 2.0 license. DeepInfer is the stack that powers DeepSeek-V4.1-Flash at scale in the company’s own production services. The four-post thread laid out the…
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The Spark Fleet Learns to Run Itself
by Chris DePuy, 650 Group / October 21, 2026 The last month of desk-side serving stories were about engines. Athena put two frontier models on one 128 GB box at 262K context with a 141,519-token conversation restored from disk in 2.1 seconds; Imprint turned that same restore trick into a standalone context-cache service with a…
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