Cheapest box to run Qwen3-Coder-Next at Q5_K_M
Alibaba’s Qwen3-Coder-Next is 80B parameters, 3B 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.
Qwen3-Coder-Next at Q5_K_M needs 58GB.
Cheapest Config that fits: Ascent GX10, GB10 Grace Blackwell, 128GB. Fits, 62GB headroom. Est. 64.2 tok/s.
Best offer today: $3,999.99 at Best Buy — in stock, checked 33 days ago.
Price history: 34 days recorded.
The Qwen3-Next hybrid again: 12 of 48 layers are full attention and the linear layers cache nothing per token.
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 33 days ago$3,999.99
- ASUSlist pricein stockchecked 2 hours ago$5,999
- Mac mini, M6, 16GB$1,099Won't fit−45GB headroom
- Mac mini, M6, 24GB$1,299Won't fit−37GB headroom
- Mac mini, M6, 32GB$1,499Won't fit−29GB headroom
- Mac mini, M5 Pro, 24GB$1,699Won't fit−37GB headroom
- Mac mini, M5 Pro, 48GB$2,499Won't fit−14GB headroom
- Mac Studio, M5 Max, 36GB$2,499Won't fit−25GB headroom
- Mac mini, M5 Pro, 64GB$2,899Tight1GB headroomest. 72.2 tok/s
- GeForce RTX 5090, 32GB$2,999.99+hostWon't fit−27GB headroom
- Tight1GB headroomest. 128 tok/s
- Mac Studio, M5 Max, 48GB$3,099Won't fit−14GB headroom
- Mac Studio, M5 Max, 64GB$3,499Tight1GB headroomest. 144 tok/s
- Fits62GB headroomest. 64.2 tok/s
- Fits30GB headroomest. 193 tok/s
- Fits62GB headroomest. 128 tok/s
- Fits62GB headroomest. 64.2 tok/s
- Fits62GB headroomest. 144 tok/s
- Fits30GB headroomest. 282 tok/s
- Fits190GB headroomest. 193 tok/s
- Fits190GB headroomest. 282 tok/s
- Fits446GB headroomest. 282 tok/s
| Config | Memory | Price | $/GB | Fit | Headroom | Est. speed |
|---|---|---|---|---|---|---|
| Mac mini, M6 | 16GB | $1,099 | $69 | Won't fit | −45GB | — |
| Mac mini, M6 | 24GB | $1,299 | $54 | Won't fit | −37GB | — |
| Mac mini, M6 | 32GB | $1,499 | $47 | Won't fit | −29GB | — |
| Mac mini, M5 Pro | 24GB | $1,699 | $71 | Won't fit | −37GB | — |
| Mac mini, M5 Pro | 48GB | $2,499 | $52 | Won't fit | −14GB | — |
| Mac Studio, M5 Max | 36GB | $2,499 | $69 | Won't fit | −25GB | — |
| Mac mini, M5 Pro | 64GB | $2,899 | $45 | Tight | 1GB | 72.2 tok/s |
| GeForce RTX 5090 | 32GB | $2,999.99+host | $94 | Won't fit | −27GB | — |
| Mac Studio, M4 Max, refurb | 64GB | $3,049 | $48 | Tight | 1GB | 128 tok/s |
| Mac Studio, M5 Max | 48GB | $3,099 | $65 | Won't fit | −14GB | — |
| Mac Studio, M5 Max | 64GB | $3,499 | $55 | Tight | 1GB | 144 tok/s |
| Ascent GX10, GB10 Grace Blackwell | 128GB | $3,999.99 | $31 | Fits | 62GB | 64.2 tok/s |
| Mac Studio, M3 Ultra, refurb | 96GB | $4,329 | $45 | Fits | 30GB | 193 tok/s |
| Mac Studio, M4 Max, refurb | 128GB | $4,409 | $34 | Fits | 62GB | 128 tok/s |
| DGX Spark, GB10 Grace Blackwell | 128GB | $4,699 | $37 | Fits | 62GB | 64.2 tok/s |
| Mac Studio, M5 Max | 128GB | $5,099 | $40 | Fits | 62GB | 144 tok/s |
| Mac Studio, M5 Ultra | 96GB | $5,499 | $57 | Fits | 30GB | 282 tok/s |
| Mac Studio, M3 Ultra, refurb | 256GB | $7,729 | $30 | Fits | 190GB | 193 tok/s |
| Mac Studio, M5 Ultra | 256GB | $9,499 | $37 | Fits | 190GB | 282 tok/s |
| Mac Studio, M5 Ultra | 512GB | — | — | Fits | 446GB | 282 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 = 80B × 0.709 B/param (5.67 bits) + 0.025 GB/1K × 8K K/V + 1.2 GB runtime
speed = bandwidth × 0.5 ÷ (3B active × 0.709 B/param) = 2.1 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.