Mac Studio M3 Ultra 512GB Price & Used Prices: Which Local LLMs Can It Run?

VRAMGlass editorial team · Updated Sep 10, 2026

The Mac Studio M3 Ultra 512GB has 512GB of LPDDR5X memory with 819 GB/s of bandwidth. The median asking price is about $19,315 on Xianyu. At Q4 quantization it runs models up to 70B parameters at roughly 11 tokens/s.

Mac Studio M3 Ultra 512GB price history

Price updated 09/10/2026, 00:11

Xianyu

Xianyu (CN used)

$21,179$19,571$17,963

Sep 5Sep 7Sep 10

Full Mac Studio M3 Ultra 512GB specifications

Cores80

Tensor cores—

ArchitectureM3 Ultra

Memory512 GB · LPDDR5X · unified memory

Bus width—

Bandwidth819 GB/s

BF16 / FP8 / INT8— / — / —

EcosystemMetal

Also known asM3 Ultra 512GB

TypeUnified memory

Power480 W

Power connector—

Slots—

Length—

Interface—

Launch dateMar 12, 2025

MSRP—

SoCApple M3 Ultra

What LLMs can the Mac Studio M3 Ultra 512GB run?

Versions released since 2026 with up to 500B parameters

Model	2-bit			4-bit			8-bit
Model	Fits	Speed t/s	Context	Fits	Speed t/s	Context	Fits	Speed t/s	Context
GemmaGemma 4 E4B	✓	120.8	128K	✓	85.8	128K	✓	49.1	128K
QwenQwen3.5 9B	✓	99.5	128K	✓	70.8	128K	✓	40.6	128K
GemmaGemma 4 12B	✓	70.3	128K	✓	51.9	128K	✓	31	128K
GemmaGemma 4 26B A4B	✓	105.8	128K	✓	89.7	128K	✓	64.5	128K
QwenQwen3.6 27B	✓	37.8	128K	✓	26.2	128K	✓	14.6	128K
QwenQwen3.8 27B	✓	37.8	128K	✓	26.2	128K	✓	14.6	128K
GLMGLM 4.7 Flash	✓	143.1	128K	✓	121.1	128K	✓	86.8	128K
GemmaGemma 4 31B	✓	28.2	128K	✓	20.5	128K	✓	12.1	128K
QwenQwen3.6 35B A3B	✓	138.4	128K	✓	117.8	128K	✓	85.1	128K
QwenQwen3.8 Flash Next	✓	107.9	128K	✓	84.7	128K	✓	54.6	128K
DeepSeekDeepSeek V4 Flash	✓	63.6	128K	✓	47.2	128K	✓	28.3	128K
HunyuanHy3	✓	40.8	128K	✓	30	128K	✓	17.8	128K
GLMGLM 5.3 Flash	✓	22.6	128K	✓	19.3	32K	✓	14	32K

Fits when weights + KV cache + runtime overhead is at or below usable memory, single card. "Offload" on MoE models means it runs with expert weights in system RAM (only attention layers and KV cache stay in VRAM); that speed assumes 70 GB/s RAM bandwidth. The context column is the largest tier that fits.

Prices by platform

eBayUnited StatesUsed

11 listings

$22,000View on eBay

Amazon.co.jpJapanNew

No listings

—View on Amazon.co.jp

XianyuMainland ChinaUsed

6 listings

Using previous price

$19,315View on Xianyu

Buy links may carry affiliate tags; they do not change the price you pay.

FAQ

How much VRAM does the Mac Studio M3 Ultra 512GB have?

The Mac Studio M3 Ultra 512GB has 512GB of LPDDR5X memory with 819 GB/s of bandwidth.

Can the Mac Studio M3 Ultra 512GB run a 70B model?

Yes. At Q4_K_M with an 8K context a 70B dense model needs about 43GB, which fits in the Mac Studio M3 Ultra 512GB's 512GB.

How much does a Mac Studio M3 Ultra 512GB cost?

The median asking price is about $19,315 on Xianyu. Figures are medians of live listings, refreshed every 6 hours.