21% OFF
$629.99
$799.99
Updated October 2026
Data from Amazon and official GMKtec and MINISFORUM sites.
2026 verdict
In this 2026 MINISFORUM UM870 Slim (32GB + 1TB) vs GMKtec NucBox M6 Ultra (32GB + 1TB) comparison, MINISFORUM UM870 Slim (32GB + 1TB) comes out ahead thanks to rating, warranty, and memory speed.
Its clearest strengths are rating, warranty, and memory speed, and it still looks stronger on GPU model. GMKtec NucBox M6 Ultra (32GB + 1TB) can still be the right pick, but only if price outweighs the wider strengths of MINISFORUM UM870 Slim (32GB + 1TB). For the average buyer, MINISFORUM UM870 Slim (32GB + 1TB) is the safer choice.
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| Feature | GMKtec NucBox M6 Ultra (32GB + 1TB) | MINISFORUM UM870 Slim (32GB + 1TB) | Winner |
|---|---|---|---|
| Price | $629.99 | $799.00 | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Rating | 4.2 | 4.5 | MINISFORUM UM870 Slim (32GB + 1TB) |
| Warranty | 1 year | 2 years | MINISFORUM UM870 Slim (32GB + 1TB) |
| Memory Speed | 4800 MT/s | 5600 MT/s | MINISFORUM UM870 Slim (32GB + 1TB) |
| GPU Model | AMD Radeon 760M | AMD Radeon 780M | MINISFORUM UM870 Slim (32GB + 1TB) |
| CPU Model | AMD Ryzen 5 7640HS | AMD Ryzen 7 8745H | Different strengths |
| Memory Configuration | Dual-channel | Dual-channel | Tie |
| Memory Type | DDR5 | DDR5 | Tie |
| Memory Capacity | 32 GB | 32 GB | Tie |
| Storage Capacity | 1 TB | 1 TB | Tie |
21% OFF
$629.99
$799.99
- + Price: $629.99
- - Rating: 4.2 vs 4.5
- - Warranty: 1 year vs 2 years
Winner
$799.00
- + Rating: 4.5
- + Warranty: 2 years
- + Memory Speed: 5600 MT/s
- - Price: $799.00 vs $629.99
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- GMKtec NucBox M6 Ultra (32GB + 1TB)
- MINISFORUM UM870 Slim (32GB + 1TB)
Loading price history...
Frequently Asked Questions
Which is better overall: GMKtec NucBox M6 Ultra (32GB + 1TB) or MINISFORUM UM870 Slim (32GB + 1TB)?
MINISFORUM UM870 Slim (32GB + 1TB) has the stronger overall profile in this comparison, especially for rating, warranty, and memory speed.
What is the biggest difference between GMKtec NucBox M6 Ultra (32GB + 1TB) and MINISFORUM UM870 Slim (32GB + 1TB)?
Price is one of the clearest differences: GMKtec NucBox M6 Ultra (32GB + 1TB) lists $629.99, while MINISFORUM UM870 Slim (32GB + 1TB) lists $799.00.
Which one looks better on price?
GMKtec NucBox M6 Ultra (32GB + 1TB) is listed at $629.99, while MINISFORUM UM870 Slim (32GB + 1TB) is listed at $799.00. GMKtec NucBox M6 Ultra (32GB + 1TB) (better spec).
Who should buy GMKtec NucBox M6 Ultra (32GB + 1TB)?
Choose GMKtec NucBox M6 Ultra (32GB + 1TB) if your priority is price and that matters more than rating.
Who should buy MINISFORUM UM870 Slim (32GB + 1TB)?
Choose MINISFORUM UM870 Slim (32GB + 1TB) if your priority is rating and warranty and that matters more than price.
Full comparison table
Compare all 94 Mini PCs side by side
You are looking at two of them. The full table lines up all Mini PCs in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 94 Mini PCs
- 41 specs compared
- 38 filters
AsusNUC 15 Pro+ (Ultra 9 32GB + 1TB)
$1902.44
MINISFORUMMS-A2 (Ryzen 9 9955HX 96GB + 2TB)
$2099.00
AsusROG GR70 (RTX 5070 32GB + 2TB)
$2599.00
AsusNUC 13 Pro Slim (i7 16GB + 512GB)
$989.99
MINISFORUMMS-S1 Max (64GB + 2TB)
$2599.00
MINISFORUMMS-03 (Ultra 9 64GB + 1TB)
$2399.00
AppleMac Mini (M4 Pro 24GB + 512GB)
6% OFF$1599.00$1499.00
AppleMac Mini (M2 Pro 16GB + 512GB)
$1273.46
AppleMac Mini (M4 16GB + 512GB)
20% OFF$999.00$799.97
GMKtecK17 Plus (32GB + 1TB)
15% OFF
$1299.99$1099.99
MINISFORUMG1 Pro (32GB + 1TB)
$1719.00
MINISFORUMMS-S1 Max (128GB + 2TB)
$3799.00
GeekomA9 Mega (128GB + 2TB)
5% OFF$3999.00$3799.00
GMKtecNucBox M7 Ultra (32GB + 512GB)
$679.99
BeelinkMini S13 (N150 12GB + 500GB)
$339.00
BeelinkMini S12 Pro (N100 16GB + 500GB)
$339.00
BeelinkMini S12 (N95 8GB + 480GB)
$279.00
MINISFORUMM1-1390 (32GB + 1TB)
$767.00
MINISFORUMM1 Pro-125H (32GB + 1TB)
$895.00
MINISFORUMUM870 Slim (32GB + 1TB)
$799.00
Mini PCsGMKtecG10 (16GB + 512GB)
4.1(309)$319.99
Mini PCsGMKtecG11 (16GB + 512GB)
4.4(1,916)32% OFF$499.99$339.98
Mini PCsGMKtecNucBox G3 Pro (16GB + 512GB)
4.4(1,916)$499.99
Mini PCsGMKtecNucBox G3S (8GB + 256GB)
4.2(1,827)$349.99- Mini PCsGMKtec
K17 Plus (32GB + 1TB)
4.6(53)15% OFF$1299.99$1099.99 
Mini PCsGMKtecNucBox M2 Pro S (16GB + 1TB)
4.4(830)$649.99
Mini PCsGMKtecNucBox M5 Ultra (32GB + 512GB)
4.3(1,003)$559.99- Mini PCsGMKtec
NucBox M6 Ultra (32GB + 1TB)
4.2(486)21% OFF$799.99$629.99 - Mini PCsGMKtec
NucBox M7 Ultra (32GB + 512GB)
4.5(1,017)$679.99 
Mini PCsGMKtecNucBox M8 (16GB + 512GB)
4.1(309)19% OFF$479.99$389.99
- Mini PCsMINISFORUM
G1 Pro (32GB + 1TB)
4.6(25)$1719.00 - Mini PCsMINISFORUM
M1-1390 (32GB + 1TB)
4.5(220)$767.00 - Mini PCsMINISFORUM
M1 Pro-125H (32GB + 1TB)
4.5(220)$895.00 
Mini PCsMINISFORUMMS-02 Ultra (Ultra 9 285HX, 32GB + 1TB)
4.4(30)$1659.00- Mini PCsMINISFORUM
MS-03 (Ultra 9 64GB + 1TB)
4.9(12)$2399.00 - Mini PCsMINISFORUM
MS-A2 (Ryzen 9 9955HX 96GB + 2TB)
5.0(5)$2099.00 - Mini PCsMINISFORUM
MS-S1 Max (128GB + 2TB)
4.6(9)$3799.00 - Mini PCsMINISFORUM
MS-S1 Max (64GB + 2TB)
5.0(2)$2599.00 - Mini PCsMINISFORUM
UM870 Slim (32GB + 1TB)
4.5(220)$799.00 
Mini PCsMINISFORUMX1 Lite-255 (32GB + 1TB)
4.5(220)$743.00