ASRock NUC BOX-255H vs MinisForum EM680

Side-by-side specification comparison with AI model-fit analysis. Data sourced from manufacturer specs, verified 2026-07-21.

	ASRock NUC BOX-255H (Core Ultra 7 255H) ASRock	MinisForum EM680 (Ryzen 7 6800H) MinisForum
Price	$699MSRP	$399MSRP
AI Framework	OpenVINO, DirectML	ROCm, Vulkan
CPU Cores	16	8
Ethernet	2.5GbE	2.5GbE
GPU Compute Units	8	12
GPU	Intel Arc	Radeon 680M
Memory Bandwidth (GB/s)	102.4	76.8
Memory Bus Width	128-bit	128-bit
Memory (GB)	96	32
Memory Type	DDR5 6400 SODIMM	DDR5 4800 SODIMM
Memory Upgradeable	Yes (DDR5 SODIMM)	Yes (DDR5 SODIMM)
NPU TOPS	13	0
OCuLink / PCIe	No	No
OS Support	Windows 11, Linux	Windows 11, Linux
Platform	Intel Arrow Lake-H	AMD Rembrandt
Storage Type	NVMe Gen4 SSD	NVMe Gen3 SSD
TDP (W)	65	45
Buy	Check Price →	Check Price →
Details	View →	View →

Model Fit Analysis

ASRock NUC BOX-255H (Core Ultra 7 255H)

Max Q4: 70B class models (85B params)

Usable AI memory: 46GB · Method: intel_igpu_bios_limited Conservative

Llama 3.1 8B ✓

Llama 3.1 70B ✓

Llama 3.2 1B ✓

Llama 3.2 3B ✓

Qwen 2.5 7B ✓

Qwen 2.5 14B ✓

Qwen 2.5 32B ✓

Qwen 2.5 72B ✓

Mistral 7B ✓

Mixtral 8x7B ✓

DeepSeek R1 7B ✓

DeepSeek R1 32B ✓

DeepSeek R1 70B ✓

Phi-3 Medium 14B ✓

Gemma 2 9B ✓

Gemma 2 27B ✓

Stable Diffusion XL ✓

Flux.1 Dev ✓

Flux.1 Schnell ✓

MinisForum EM680 (Ryzen 7 6800H)

Max Q4: 34B class models (38B params)

Usable AI memory: 22.5GB · Method: amd_igpu_bios_limited Conservative