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Cheapest box to run MiniMax-M2 at Q3_K_M

MiniMax’s MiniMax-M2 is 229B parameters, 10B of them read per token. The number below is computed from that and each vendor’s published specs, not asserted. Switch the quant or the context and it recomputes in place.

Fit finderprices checked 1 hour ago
Quant
Context

MiniMax-M2 at Q3_K_M needs 115GB.

Cheapest Config that fits: Mac Studio, M3 Ultra, 256GB, refurbished. Fits, 133GB headroom. Est. 83.8 tok/s.

Best offer today: $7,729 at Apple Certified Refurbished in stock, checked 1 hour ago.

Collecting price history — 3 of 90 days. No timing verdict yet.

Offers — Mac Studio, M3 Ultra, 256GB, 1TB, refurbished

  • Apple Certified RefurbishedRefurbished by Apple, with Apple's one-year limited warranty and 14-day returns. Apple says refurbished supply is usually very limited and often runs out, so this row can go dead faster than a new one.in stockchecked 1 hour ago$7,729

GeForce RTX 5090 is a card, not a computer: every price shown for it is the cheapest listing we found plus $1,000 for the minimum host machine.

memory = 229B × 0.489 B/param (3.91 bits) + 0.254 GB/1K × 8K K/V + 1.2 GB runtime
speed = bandwidth × 0.5 ÷ (10B active × 0.489 B/param) = 4.9 GB read per token
usable = memory − operating system reserve (8% on a Mac, 6% on a DGX Spark, 4% on a card)

Bandwidth is the vendor’s published figure. Every speed is an estimate and says so. Methodology.

Email me when Mac Studio, M3 Ultra, 256GB, refurbished drops. One email, then we stop.

$7,729 is the lowest price we have recorded, rounded down to the dollar.

What else Mac Studio M3 Ultra 256GB refurb runs

Best quant that still fits at 8K context, largest model first. Full list on the Config page.

Bandwidth 819GB/s, usable memory 248GB of 256GB.