Updated August 2026
Data from Amazon and official GMKtec site.
2026 verdict
For most buyers in 2026, GMKtec NucBox M6 Ultra (32GB + 1TB) is the safer pick over GMKtec NucBox G3S (8GB + 256GB) because of memory type, memory capacity, and storage capacity. What pushes it ahead is memory type, memory capacity, and storage capacity, and its broader overall balance keeps the advantage from looking narrow. Pick GMKtec NucBox G3S (8GB + 256GB) only when price is the deciding factor for your setup. That keeps the verdict firmly in favor of GMKtec NucBox M6 Ultra (32GB + 1TB).
| Feature | GMKtec NucBox G3S (8GB + 256GB) | GMKtec NucBox M6 Ultra (32GB + 1TB) | Winner |
|---|---|---|---|
| Price | $249.99 | $629.99 | GMKtec NucBox G3S (8GB + 256GB) |
| Memory Type | DDR4 | DDR5 | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Memory Capacity | 8 GB | 32 GB | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Storage Capacity | 256 GB | 1 TB | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| CPU Model | Intel Processor N95 | AMD Ryzen 5 7640HS | Different strengths |
| Memory Configuration | Single-channel | Dual-channel | Different strengths |
| GPU Model | Intel UHD Graphics (up to 1200 MHz) | AMD Radeon 760M | Different strengths |
| Rating | 4.3 | 4.3 | Tie |
| Warranty | 1 year | 1 year | Tie |
29% OFF
$249.99
$349.99
- + Price: $249.99
- - Memory Type: DDR4 vs DDR5
- - Memory Capacity: 8 GB vs 32 GB
Winner
21% OFF
$629.99
$799.99
- + Memory Type: DDR5
- + Memory Capacity: 32 GB
- + Storage Capacity: 1 TB
- - Price: $629.99 vs $249.99
Frequently Asked Questions
Which is better overall: GMKtec NucBox G3S (8GB + 256GB) or GMKtec NucBox M6 Ultra (32GB + 1TB)?
GMKtec NucBox M6 Ultra (32GB + 1TB) has the stronger overall profile in this comparison, especially for memory type, memory capacity, and storage capacity.
What is the biggest difference between GMKtec NucBox G3S (8GB + 256GB) and GMKtec NucBox M6 Ultra (32GB + 1TB)?
Price is one of the clearest differences: GMKtec NucBox G3S (8GB + 256GB) lists $249.99, while GMKtec NucBox M6 Ultra (32GB + 1TB) lists $629.99.
Which one looks better on price?
GMKtec NucBox G3S (8GB + 256GB) is listed at $249.99, while GMKtec NucBox M6 Ultra (32GB + 1TB) is listed at $629.99. 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 type.
Who should buy GMKtec NucBox M6 Ultra (32GB + 1TB)?
Choose GMKtec NucBox M6 Ultra (32GB + 1TB) if your priority is memory type and memory capacity and that matters more than price.
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