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Apple · M1 Ultra · 128 GB · Qwen3.8 27B · Q4_K_M at 8K context: ~28 tok/s

Apple Mac Studio M1 Ultra, 128 GB

The first Mac Studio with 128 GB, from 2022: the same 800 GB/s as the M2 Ultra with a slower GPU, so decode speed is close and prefill is slower. A 70B model at Q8 fits. Usually the cheapest 128 GB machine at this bandwidth.

Watch Qwen3.8 27B stream at this machine's speed

Lowest price right now

$4,000

eBay · free shipping · $31 per GB · observed 2026-11-14 18:37 UTC

free shipping · Used · dingledodies 184 · 100.0%

Price alert

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Price history

Daily low across every tracked vendor, last 4 days.

$3,992$4,030$4,069$4,107Nov 11Nov 14lowest $4,000

Where to buy

VendorPriceConditionObserved
eBay
cheapest active listing
$4,000
free shipping
new and used 2026-11-14 18:37 UTC Go to eBay

On eBay now

9 listings passed our filters at the last check, 7 min ago. We check every 28 minutes. Cheapest delivered first. Seller reputation is feedback count and positive rate.

All 9 listings · Open the search on eBay

What it runs

For each model, grouped by vendor with the newest first: the largest quant that fits with 8K of context and the estimated speed for one user, at 8K and at 32K of context. On a card, a model too big for its memory can still run with part of the weights in system RAM; we assume 64 GB, and the speed shown accounts for it. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.

ModelQuantNeeds at 8KFitMax contextDecode at 8KAt 32KPrefill tok/s
DeepSeek
DeepSeek V4.1 Flash 552B-A16B Sep 2026Q4_K_M338 GBdoes not fit
DeepSeek V4 Flash 284B-A13B Jul 2026IQ2_M98 GBfits128K+~74~62~150
DeepSeek V3.1 671B-A37B Aug 2025Q4_K_M411 GBdoes not fit
Gemma
Gemma 4 12B May 2026Q8_014 GBfits128K+~37~36~170
Gemma 4 31B Mar 2026Q8_035 GBfits128K+~14~14~65
Gemma 4 26B-A4B Mar 2026Q8_028 GBfits128K+~82~75~520
Gemma 3 27B Mar 2025Q8_031 GBfits128K+~16~15~73
GLM
GLM-5.3 753B-A40B Aug 2026Q4_K_M462 GBdoes not fit
GLM-5.3 Flash 320B-A18B Aug 2026IQ2_M111 GBfits128K+~59~52~110
GLM-4.6 355B-A32B Sep 2025IQ2_M125 GBfits15K~31~62
GLM-4.5 Air 106B-A12B Jul 2025Q8_0115 GBfits73K~30~23~170
gpt-oss
gpt-oss-120b Aug 2025Q8_0126 GBfits35K~62~51~390
gpt-oss-20b Aug 2025Q8_024 GBfits128K+~81~68~550
Llama
Llama 4 Scout 109B-A17B Apr 2025Q8_0119 GBfits54K~23~18~120
Llama 3.3 70B Dec 2024Q8_079 GBfits128K+~6.2~5.6~28
Llama 3.1 8B Jul 2024Q8_011 GBfits128K+~50~38~250
MiMo
MiMo V2.6 Pro 1.02T-A42B Sep 2026Q4_K_M624 GBdoes not fit
MiMo V2.6 Flash 309B-A15B Sep 2026IQ2_M107 GBfits128K+~69~62~130
Mistral
Mistral Medium 3.5 128B Mar 2026Q6_K109 GBfits58K~4.4~4.1~16
Mistral Small 4 119B-A6.5B Mar 2026Q6_K104 GBfits47K~41~18~310
Mistral Small 3.2 24B Jun 2025Q8_028 GBfits128K+~18~16~83
Nemotron
Nemotron 3.5 Lightning 30B-A3B Aug 2026Q8_035 GBfits128K+~88~86~570
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q6_K104 GBfits128K+~71~65~330
Qwen3.8 27B Aug 2026 (your pick)Q8_031 GBfits128K+~16~16~74
Qwen3.6 27B Apr 2026Q8_031 GBfits128K+~16~16~74
Qwen3.6 35B-A3B Apr 2026Q8_039 GBfits128K+~95~87~660
Qwen3.5 9B Feb 2026Q8_011 GBfits128K+~49~45~220
Qwen3 Coder 480B-A35B Jul 2025Q4_K_M296 GBdoes not fit
Qwen3 235B-A22B Jul 2025Q3_K_M118 GBfits57K~34~26~90
Qwen3 32B Apr 2025Q8_038 GBfits128K+~13~11~61

Specifications

Memory
128 GB LPDDR5 unified
Memory bandwidth
800 GB/s
Bus width
1024-bit
FP32
15.9 TFLOPS
FP16 (dense)
16 TFLOPS
Form factor
Desktop box, 197 x 197 x 95 mm
CPU
20-core CPU, 48-core GPU (64-core optional), 32-core Neural Engine
Architecture
M1 Ultra
Launched
2022
MSRP
$4,799

Source: manufacturer specifications.

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Mac Studio M1 Ultra 128 GB: live eBay low

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