buyaigear
Prices checked 9 min ago

Apple · M3 Ultra · 256 GB · Qwen3.8 27B · Q4_K_M: ~30 tok/s

Apple Mac Studio M3 Ultra, 256 GB

256 GB at 819 GB/s: a 235B mixture-of-experts model at Q4, or a 70B at FP16, in a silent box. Half the price of the 512 GB configuration.

Lowest price right now

$8,499

eBay · free shipping · $33 per GB · observed 2026-10-14 22:19 UTC

See it on eBaySee it on Amazon

Where to buy

VendorPriceConditionObserved
eBay
cheapest active listing		 $8,499
free shipping		 new and used 2026-10-14 22:19 UTC Go to eBay
Amazon
price tracking coming		 price on Amazon new Go to Amazon

On eBay now

25 listings passed our filters at the last check. Cheapest delivered first. Seller reputation is feedback count and positive rate.

All 25 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. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.

ModelQuantNeeds at 8KFitMax contextDecode tok/sPrefill tok/s
DeepSeek
DeepSeek V4.1 Flash 552B-A16B Sep 2026IQ2_M189 GBfits128K+~90~170
DeepSeek V4 Flash 284B-A13B Jul 2026Q6_K235 GBfits128K+~46~200
DeepSeek V3.1 671B-A37B Aug 2025IQ2_M230 GBfits128K+~39~72
Gemma
Gemma 4 12B May 2026Q8_014 GBfits128K+~39~220
Gemma 4 31B Mar 2026Q8_035 GBfits128K+~15~87
Gemma 4 26B-A4B Mar 2026Q8_028 GBfits128K+~120~700
Gemma 3 27B Mar 2025Q8_031 GBfits128K+~17~97
GLM
GLM-5.3 753B-A40B Aug 2026Q4_K_M462 GBdoes not fit
GLM-5.3 Flash 320B-A18B Aug 2026Q5_K_M229 GBfits128K+~38~150
GLM-4.6 355B-A32B Sep 2025Q4_K_M221 GBfits98K~25~83
GLM-4.5 Air 106B-A12B Jul 2025Q8_0115 GBfits128K+~39~220
gpt-oss
gpt-oss-120b Aug 2025Q8_0126 GBfits128K+~91~520
gpt-oss-20b Aug 2025Q8_024 GBfits128K+~130~740
Llama
Llama 4 Scout 109B-A17B Apr 2025Q8_0119 GBfits128K+~27~160
Llama 3.3 70B Dec 2024Q8_079 GBfits128K+~6.6~38
Llama 3.1 8B Jul 2024Q8_011 GBfits128K+~58~330
MiMo
MiMo V2.6 Pro 1.02T-A42B Sep 2026Q4_K_M624 GBdoes not fit
MiMo V2.6 Flash 309B-A15B Sep 2026Q6_K255 GBfits39K~40~180
Mistral
Mistral Medium 3.5 128B Mar 2026Q8_0140 GBfits128K+~3.6~21
Mistral Small 4 119B-A6.5B Mar 2026Q8_0132 GBfits128K+~71~410
Mistral Small 3.2 24B Jun 2025Q8_028 GBfits128K+~19~110
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q8_0134 GBfits128K+~77~440
Qwen3.8 27B Aug 2026 (your pick)Q8_031 GBfits128K+~17~99
Qwen3.6 27B Apr 2026Q8_031 GBfits128K+~17~99
Qwen3.6 35B-A3B Apr 2026Q8_039 GBfits128K+~150~890
Qwen3 Coder 480B-A35B Jul 2025Q3_K_M239 GBfits74K~29~76
Qwen3 235B-A22B Jul 2025Q8_0252 GBfits27K~21~120
Qwen3 32B Apr 2025Q8_038 GBfits128K+~14~81

Specifications

Memory
256 GB LPDDR5 unified
Memory bandwidth
819 GB/s
Bus width
1024-bit
FP32
21.3 TFLOPS
FP16 (dense)
21 TFLOPS
Form factor
Desktop box, 197 x 197 x 95 mm
CPU
28-core CPU, 60-core GPU (80-core optional), 32-core Neural Engine
Architecture
M3 Ultra
Launched
2025
MSRP
$5,499

Source: manufacturer specifications.