Updated August 2026
Data from Amazon and official GMKtec site.
2026 verdict
In 2026, the recommendation leans toward GMKtec NucBox M5 Ultra (32GB + 512GB) over GMKtec NucBox G3S (8GB + 256GB), driven by memory capacity, GPU model, and storage capacity. Its biggest wins come from memory capacity, GPU model, and storage capacity, and its broader overall balance adds more confidence to the verdict. GMKtec NucBox G3S (8GB + 256GB) remains a niche alternative if price matters more than the rest of the comparison. For most setups, GMKtec NucBox M5 Ultra (32GB + 512GB) is the smarter buy.
| Feature | GMKtec NucBox G3S (8GB + 256GB) | GMKtec NucBox M5 Ultra (32GB + 512GB) | Winner |
|---|---|---|---|
| Price | $249.99 | $539.99 | GMKtec NucBox G3S (8GB + 256GB) |
| Memory Capacity | 8 GB | 32 GB | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| GPU Model | Intel UHD Graphics (up to 1200 MHz) | AMD Radeon Graphics (8 cores, up to 2000 MHz) | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| Storage Capacity | 256 GB | 512 GB | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| CPU Model | Intel Processor N95 | AMD Ryzen 7 7730U | Different strengths |
| Memory Configuration | Single-channel | Dual-channel | Different strengths |
| Rating | 4.3 | 4.3 | Tie |
| Warranty | 1 year | 1 year | Tie |
| Memory Type | DDR4 | DDR4 | Tie |
29% OFF
$249.99
$349.99
- + Price: $249.99
- - Memory Capacity: 8 GB vs 32 GB
- - GPU Model: Intel UHD Graphics (up to 1200 MHz) vs AMD Radeon Graphics (8 cores, up to 2000 MHz)
Winner
$539.99
- + Memory Capacity: 32 GB
- + GPU Model: AMD Radeon Graphics (8 cores, up to 2000 MHz)
- + Storage Capacity: 512 GB
- - Price: $539.99 vs $249.99
Frequently Asked Questions
Which is better overall: GMKtec NucBox G3S (8GB + 256GB) or GMKtec NucBox M5 Ultra (32GB + 512GB)?
GMKtec NucBox M5 Ultra (32GB + 512GB) has the stronger overall profile in this comparison, especially for memory capacity, GPU model, and storage capacity.
What is the biggest difference between GMKtec NucBox G3S (8GB + 256GB) and GMKtec NucBox M5 Ultra (32GB + 512GB)?
Price is one of the clearest differences: GMKtec NucBox G3S (8GB + 256GB) lists $249.99, while GMKtec NucBox M5 Ultra (32GB + 512GB) lists $539.99.
Which one looks better on price?
GMKtec NucBox G3S (8GB + 256GB) is listed at $249.99, while GMKtec NucBox M5 Ultra (32GB + 512GB) is listed at $539.99. GMKtec NucBox G3S (8GB + 256GB) (better spec).
Who should buy GMKtec NucBox G3S (8GB + 256GB)?
Choose GMKtec NucBox G3S (8GB + 256GB) if your priority is price and that matters more than memory capacity.
Who should buy GMKtec NucBox M5 Ultra (32GB + 512GB)?
Choose GMKtec NucBox M5 Ultra (32GB + 512GB) if your priority is memory capacity and GPU model and that matters more than price.
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