Sunk Cost sunkcost.ai Data checked 2026-09-03

Can a Strix Halo Corsair AI Workstation 300, 128GB run local LLMs?

Yes — 40 of the 49 current models on this site fit in its 96 GB of usable memory. The strongest it holds, Qwen3.8 27B, runs at 10 tok/s with a 32k window, worked out from memory bandwidth. Whether that saves you money is a different question: at $4,700 and 500k tokens a day, it pays back in 336 years.

Price$4,700
Memory128 GB, about 96 GB of it addressable by the GPU at 256 GB/s
Best model it runsQwen3.8 27B — Sonnet-class, 10 tok/s estimated
Pay-back against the APIPays back in 336 years at 500k tokens a day

Run the numbers on this machine

What the Corsair AI Workstation 300, 128GB runs

Memory never runs out first here. Every model below holds 256k, where the calculator's list ends, or the longest setting its own context limit allows, so the window you get is the model's choice rather than this machine's.

ModelSpeedClassMemoryLongest context
Qwen3.8 27BQ4_K_M 10 tok/s estimated Sonnet-class 19 GB 256k
Ling 3.0 flashQ4_K_M 41 tok/s estimated Haiku-class 78 GB 256k
Qwen3.6 27BQ4_K_M 10 tok/s estimated Haiku-class 19 GB 256k
Nemotron 3.5 Bolt 74B-A9BIQ2 48 tok/s estimated Haiku-class 22 GB 256k
Qwen3.6 35B-A3BQ4_K_M 56 tok/s estimated Haiku-class 23 GB 256k
Muse Glimmer 30BQ4_K_M 11 tok/s estimated Haiku-class 18 GB 128k
Gemma 4 26B-A4BQ4_K_M 41 tok/s estimated Haiku-class 18 GB 256k
Qwen3.5 122B-A10BUD-Q4_K_M 20 tok/s estimated Haiku-class 79 GB 256k
Gemma 4 31B itQ4_K_M 8.3 tok/s estimated Haiku-class 23 GB 256k
Granite 4.2 30BQ4_K_M 7.3 tok/s estimated Haiku-class 26 GB 128k
GLM-4.7-FlashQ4_K_M 40 tok/s estimated Haiku-class 20 GB 128k
Gemma 4 12BQ4_K_M 24 tok/s estimated Below every hosted tier 8.0 GB 256k

Speed and memory are at 32k context, the setting the calculator starts on; the memory column is the weights plus the cache for that much of it. Each speed says how it was arrived at, and every one here is estimated from this machine's 256 GB/s of memory bandwidth rather than taken from a published benchmark. There is a page on how that sum works, and what each size needs, and one on what 128 GB runs, machine by machine. The longest context is the longest setting the calculator offers that this machine still holds the model at, cache included, and each one opens the calculator on that model at that length. A figure tagged memory is one this machine ran out of room for, and the rest are stopped by the model's own limit or by the end of the list.

For scale, the calculator starts from 80 tok/s for a hosted API and times a local machine against it. Nothing above reaches it, and the quickest is 56 tok/s.

28 more fit. Ranked below the twelve above: Qwen3.5 9B, Nemotron 3.5 Lightning 30B-A3B, MiniCPM5 2B, Qwen3.5 4B, gpt-oss-120b, Ling 3.0 tiny, Granite 4.2 8B, Mistral Small 4 (119B-2603), Qwen3-Coder 30B-A3B, Qwen3-Coder Next, gpt-oss-20b, Gemma 4 E4B, Devstral 2 123B, LFM2.5 2.6B, Devstral Small 2 24B, Ministral 3 14B, Ministral 3 8B. The other 11 have no intelligence-index score, so the ranking cannot place them: Laguna XS 2.1, LFM3 1.7B, Ornith 1.5 9B, Ornith 1.5 35B-A3B, Ornith 1.5 122B, Spark-X2.5 4B, Spark-X2.6 4B, KAT-Coder V2.5 Dev 35B-A3B, LFM2.5 24B-A2B, Flint 40B-A2.5B, Nanbeige4.3 33B. Their pages show what each one needs and what runs it.

The 49 counted above are the current models. This site prices 16 superseded ones as well, because people still run them, and this machine holds 15 of those at 32k, strongest first: GLM-4.5-Air, Qwen3 30B-A3B Instruct 2507, DeepSeek-R1-Distill-Qwen-32B, DeepSeek-R1-Distill-Llama-70B, Llama 3.3 70B Instruct, Llama 3.1 8B Instruct at Q4_K_M, Llama 3.1 8B Instruct at Q8_0, Mistral Small 3.2 24B Instruct, Qwen3 32B at Q4_K_M, Qwen3 32B at Q8_0, Qwen3 14B, Llama 4 Scout 17B-16E, Qwen3 8B, Gemma 3 27B it, Gemma 3 12B it. Each of those pages asks whether the model is still worth running.

What has been measured on the Corsair AI Workstation 300, 128GB

Not one of the speeds above was measured on this machine, and that is not because nobody has run a model on one. This site holds four published speeds taken on this machine, three of them on superseded models the table above leaves out. They are below, as published and again at 32k of context, which is what every other speed on this page is taken at.

ModelAt 32kAs published
gpt-oss-120bMXFP4 39 tok/s measured 56 tok/smeasured at an empty window
Qwen3 30B-A3B Instruct 2507Q4_K_Msuperseded 27 tok/s measured 72 tok/smeasured at an empty window
Llama 3.1 8B InstructQ4_K_Msuperseded 22 tok/s measured 41 tok/smeasured at an empty window
Gemma 3 27B itQ4_K_Msuperseded 9.8 tok/s measured 12 tok/smeasured at an empty window

A published figure is what its source reports, at the window the model was run at. The 32k figure is that measurement read at 32k of context: every token generated reads the weights and the whole key-value cache, so the longer the window the slower it runs. The figures come from Tom's Hardware.

Other machines to weigh against the Corsair AI Workstation 300, 128GB

MachinePriceMemoryModels that fitPay-back
Other Strix Halo machines
Strix Halo Framework Desktop, 32GB $1,269 32 GB 29 Pays back in 91 years
Strix Halo Corsair AI Workstation 300, 64GB $1,700 64 GB 33 Pays back in 121 years
Strix Halo Framework Desktop, 64GB $1,959 64 GB 33 Pays back in 140 years
Strix Halo GMKtec EVO-X2, 64GB $2,200 64 GB 33 Pays back in 168 years
Strix Halo Framework Desktop, 128GB $3,449 128 GB 40 Pays back in 246 years
Strix Halo GMKtec EVO-X2, 128GB $3,500 128 GB 40 Pays back in 267 years
Strix Halo GMKtec EVO-X3, 128GB $3,600 128 GB 40 Pays back in 275 years
Strix Halo Minisforum MS-S1 Max, 128GB $3,799 128 GB 40 Pays back in 271 years
Strix Halo Beelink GTR9 Pro, 128GB $4,349 128 GB 40 Pays back in 311 years
Strix Halo HP Z2 Mini G1a, 128GB $5,544 128 GB 40 Pays back in 396 years
Strix Halo Framework Desktop, 192GB not published 192 GB 43 Not enough data to compute a pay-back.
Nearest in price elsewhere on the list
NVIDIA GeForce RTX 5090, 32GB $1,999card only 32 GB 33 Pays back in 123 years
Mac mini M5 Pro, 64GB $2,699 64 GB 33 Pays back in 182 years
DGX Spark GB10 Grace Blackwell, 128GB $4,699 128 GB 40 Pays back in 346 years
MacBook Pro M5 Max (16-inch), 48GB $4,999 48 GB 33 Pays back in 281 years
Mac Studio M5 Max, 128GB $5,099 128 GB 40 Pays back in 287 years

Every row uses the same defaults as the figures above: 500k tokens a day at 15:1 input to output, 32k context, and each machine's strongest model that fits, counted against the same 49 current models. The GeForce RTX 5090, 32GB is priced as the card alone, so add the PC around it before comparing it with a complete computer. All seven cards here are ranked by what each one holds.

Head to head with another computer: Framework Desktop, 128GB · DGX Spark, 128GB. With the same box and the smaller chip: 64GB. There are 111 machine match-ups on the site.

The specifics

Chip
Corsair AI Workstation 300 — Ryzen AI Max+ 395 · Radeon 8060S, 40 CU
Memory bandwidth
256 GB/s — Measured GPU bandwidth is ~212-215 GB/s of the 256 GB/s theoretical, so estimates here run a little high.
Usable by the GPU
96 GB — Corsair lists up to 96 GB VRAM for this configuration, the Windows 75% split used for the other Strix Halo machines. On Linux the GTT pool can be raised to roughly 108-120 GB.
Power under load
133 W (stand-in) — No wall measurement for this unit; stand-in is the Framework Desktop's measured 133 W on the same chip (Jeff Geerling). Tom's Hardware reports Corsair's firmware profiles give the chip about 85 W (Balanced, default), 120 W (Max) or 55 W (Quiet).
Availability
Corsair's price on 2026-09-16, backordered. Was $2,999.99 in February 2026.
Sources
Corsair, Tom's Hardware, Framework, geerlingguy/ai-benchmarks