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MCS · Rigs · Compare

Side-by-side, with the numbers that matter.

Two rigs, one table. Higher numbers win in cobalt; TDP and price flip.

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SpecAlibaba Qwen2.5-72B-Instruct (Q4 quant)Apple Mac Pro (M2 Ultra, 2023)
Chip—Apple M2 Ultra
Context Window Tokens K128—
CPU Cores—24
CPU Efficiency Cores—8
CPU Performance Cores—16
Discontinued ON—2026-03-26
Dual Card Count2—
Dual Card Vram GB24—
Form factor—tower / rack
GPT Version5—
GPU Cores MAX—76
GPU Cores MIN—60
Memory bandwidth (GB/s)—800
MSRP (USD)↓ better—6,999
Neural Engine Cores—32
Parameter Count B72—
Pcie Expansion—true
Qwen Version3—
Qwen25 72B InstructQwen2.5-72B-Instruct—
Qwen25 Version2.5—
Qwen3 Largest Dense Checkpoint B32—
RTX 5090 Pairing Vram GB32—
SSD TB Options—1, 2, 4, 8
Status—discontinued
Status Checked2026-09-24—
Unified Memory GB Options—64, 128, 192
Vram Required GB44—