Cheapest box to run Llama-3.3-70B at Q6_K
Meta’s Llama-3.3-70B is 70B parameters, dense. 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.
Llama-3.3-70B at Q6_K needs 61GB.
Cheapest Config that fits: Ascent GX10, GB10 Grace Blackwell, 128GB. Fits, 59GB headroom. Est. 3.1 tok/s.
Best offer today: $3,999.99 at Best Buy — in stock, checked 45 days ago.
Price history: 46 days recorded.
Offers — Ascent GX10, GB10 Grace Blackwell, 128GB, 1TB
- Best BuyRead on 28 Aug 2026 and not re-read since: Best Buy blocks our automated checks, so this number is old and we say so rather than imply it is current. It was $1,999 under ASUS's own store once ASUS raised its price in September.in stockchecked 45 days ago$3,999.99
- ASUSlist pricein stockchecked 44 minutes ago$5,999
- Mac mini, M6, 16GB$1,099Won't fit−48GB headroom
- Mac mini, M6, 24GB$1,299Won't fit−40GB headroom
- Mac mini, M6, 32GB$1,499Won't fit−32GB headroom
- Mac mini, M5 Pro, 24GB$1,699Won't fit−40GB headroom
- Mac mini, M5 Pro, 48GB$2,499Won't fit−17GB headroom
- Mac Studio, M5 Max, 36GB$2,499Won't fit−28GB headroom
- Mac mini, M5 Pro, 64GB$2,899Won't fit−2GB headroom
- GeForce RTX 5090, 32GB$2,999.99+hostWon't fit−31GB headroom
- Won't fit−2GB headroom
- Mac Studio, M5 Max, 48GB$3,099Won't fit−17GB headroom
- Mac Studio, M5 Max, 64GB$3,499Won't fit−2GB headroom
- Fits59GB headroomest. 3.1 tok/s
- Fits27GB headroomest. 9.3 tok/s
- Fits59GB headroomest. 6.2 tok/s
- Fits59GB headroomest. 3.1 tok/s
- Fits59GB headroomest. 7.0 tok/s
- Fits27GB headroomest. 13.6 tok/s
- Fits187GB headroomest. 9.3 tok/s
- Fits187GB headroomest. 13.6 tok/s
- Fits443GB headroomest. 13.6 tok/s
| Config | Memory | Price | Fit | Headroom | Est. speed |
|---|---|---|---|---|---|
| Mac mini, M6 | 16GB | $1,099 | Won't fit | −48GB | — |
| Mac mini, M6 | 24GB | $1,299 | Won't fit | −40GB | — |
| Mac mini, M6 | 32GB | $1,499 | Won't fit | −32GB | — |
| Mac mini, M5 Pro | 24GB | $1,699 | Won't fit | −40GB | — |
| Mac mini, M5 Pro | 48GB | $2,499 | Won't fit | −17GB | — |
| Mac Studio, M5 Max | 36GB | $2,499 | Won't fit | −28GB | — |
| Mac mini, M5 Pro | 64GB | $2,899 | Won't fit | −2GB | — |
| GeForce RTX 5090 | 32GB | $2,999.99+host | Won't fit | −31GB | — |
| Mac Studio, M4 Max, refurb | 64GB | $3,049 | Won't fit | −2GB | — |
| Mac Studio, M5 Max | 48GB | $3,099 | Won't fit | −17GB | — |
| Mac Studio, M5 Max | 64GB | $3,499 | Won't fit | −2GB | — |
| Ascent GX10, GB10 Grace Blackwell | 128GB | $3,999.99 | Fits | 59GB | 3.1 tok/s |
| Mac Studio, M3 Ultra, refurb | 96GB | $4,329 | Fits | 27GB | 9.3 tok/s |
| Mac Studio, M4 Max, refurb | 128GB | $4,409 | Fits | 59GB | 6.2 tok/s |
| DGX Spark, GB10 Grace Blackwell | 128GB | $4,699 | Fits | 59GB | 3.1 tok/s |
| Mac Studio, M5 Max | 128GB | $5,099 | Fits | 59GB | 7.0 tok/s |
| Mac Studio, M5 Ultra | 96GB | $5,499 | Fits | 27GB | 13.6 tok/s |
| Mac Studio, M3 Ultra, refurb | 256GB | $7,729 | Fits | 187GB | 9.3 tok/s |
| Mac Studio, M5 Ultra | 256GB | $9,499 | Fits | 187GB | 13.6 tok/s |
| Mac Studio, M5 Ultra | 512GB | — | Fits | 443GB | 13.6 tok/s |
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 = 70B × 0.820 B/param (6.56 bits) + 0.328 GB/1K × 8K K/V + 1.2 GB runtime
speed = bandwidth × 0.65 ÷ (70B active × 0.820 B/param) = 57.4 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.
What else Ascent GX10 GB10 Grace Blackwell 128GB runs
- Qwen3-235B-A22BQ3_K_M, est. 12.7 tok/s
- MiniMax-M2Q3_K_M, est. 27.9 tok/s
- Mistral-Large-2411Q6_K, est. 1.8 tok/s
- gpt-oss-120bQ6_K, est. 32.6 tok/s
- Llama-4-Scout-17B-16EQ8_0, est. 7.6 tok/s
- Qwen3-Coder-NextQ8_0, est. 42.8 tok/s
Best quant that still fits at 8K context, largest model first. Full list on the Config page.
Bandwidth 273GB/s, usable memory 120GB of 128GB.