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Apple · M2 Ultra · 128 GB · Qwen3.8 27B · Q4_K_M at 8K context: ~28 tok/s

Apple Mac Studio M2 Ultra, 128 GB

128 GB at 800 GB/s in the 2023 Mac Studio: half again the bandwidth of an M4 Max with the same memory. A 70B model at Q8 fits. Discontinued, so every listing is used or old stock; compare the M3 Ultra 96 GB, which is newer and often cheaper.

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

Lowest price right now

$4,978

eBay · free shipping · $38 per GB · observed 2026-11-14 18:37 UTC

Buy the cheapest on eBay, $4,978

free shipping · Used · bluemin 432 · 100.0%

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Price history

Daily low across every tracked vendor, last 4 days.

$4,960$5,046$5,132$5,218Nov 11Nov 14lowest $4,978

Where to buy

VendorPriceConditionObserved
eBay
cheapest active listing		 $4,978
free shipping		 new and used 2026-11-14 18:37 UTC Go to eBay

On eBay now

5 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.

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+~74~62~210
DeepSeek V3.1 671B-A37B Aug 2025Q4_K_M411 GBdoes not fit
Gemma
Gemma 4 12B May 2026Q8_014 GBfits128K+~37~36~220
Gemma 4 31B Mar 2026Q8_035 GBfits128K+~14~14~88
Gemma 4 26B-A4B Mar 2026Q8_028 GBfits128K+~82~75~710
Gemma 3 27B Mar 2025Q8_031 GBfits128K+~16~15~98
GLM
GLM-5.3 753B-A40B Aug 2026Q4_K_M462 GBdoes not fit
GLM-5.3 Flash 320B-A18B Aug 2026IQ2_M111 GBfits128K+~59~52~150
GLM-4.6 355B-A32B Sep 2025IQ2_M125 GBfits15K~31~84
GLM-4.5 Air 106B-A12B Jul 2025Q8_0115 GBfits73K~30~23~220
gpt-oss
gpt-oss-120b Aug 2025Q8_0126 GBfits35K~62~51~530
gpt-oss-20b Aug 2025Q8_024 GBfits128K+~81~68~750
Llama
Llama 4 Scout 109B-A17B Apr 2025Q8_0119 GBfits54K~23~18~160
Llama 3.3 70B Dec 2024Q8_079 GBfits128K+~6.2~5.6~38
Llama 3.1 8B Jul 2024Q8_011 GBfits128K+~50~38~340
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+~69~62~180
Mistral
Mistral Medium 3.5 128B Mar 2026Q6_K109 GBfits58K~4.4~4.1~21
Mistral Small 4 119B-A6.5B Mar 2026Q6_K104 GBfits47K~41~18~410
Mistral Small 3.2 24B Jun 2025Q8_028 GBfits128K+~18~16~110
Nemotron
Nemotron 3.5 Lightning 30B-A3B Aug 2026Q8_035 GBfits128K+~88~86~770
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q6_K104 GBfits128K+~71~65~450
Qwen3.8 27B Aug 2026 (your pick)Q8_031 GBfits128K+~16~16~100
Qwen3.6 27B Apr 2026Q8_031 GBfits128K+~16~16~100
Qwen3.6 35B-A3B Apr 2026Q8_039 GBfits128K+~95~87~900
Qwen3.5 9B Feb 2026Q8_011 GBfits128K+~49~45~300
Qwen3 Coder 480B-A35B Jul 2025Q4_K_M296 GBdoes not fit
Qwen3 235B-A22B Jul 2025Q3_K_M118 GBfits57K~34~26~120
Qwen3 32B Apr 2025Q8_038 GBfits128K+~13~11~82

Specifications

Memory
128 GB LPDDR5 unified
Memory bandwidth
800 GB/s
Bus width
1024-bit
FP32
21.5 TFLOPS
FP16 (dense)
22 TFLOPS
Form factor
Desktop box, 197 x 197 x 95 mm
CPU
24-core CPU, 60-core GPU (76-core optional), 32-core Neural Engine
Architecture
M2 Ultra
Launched
2023
MSRP
$4,799

Source: manufacturer specifications.

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