Updated October 2026
Data from Amazon and official GMKtec and MINISFORUM sites.
2026 verdict
MINISFORUM UM870 Slim (32GB + 1TB) edges out GMKtec K15 (32GB + 512GB) in 2026, led by rating, warranty, and memory speed.
Its clearest strengths are rating, warranty, and memory speed, and it still looks stronger on storage capacity. GMKtec K15 (32GB + 512GB) is still relevant if you care most about price, but MINISFORUM UM870 Slim (32GB + 1TB) is the stronger recommendation overall. That keeps the verdict firmly in favor of MINISFORUM UM870 Slim (32GB + 1TB).
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| Feature | GMKtec K15 (32GB + 512GB) | MINISFORUM UM870 Slim (32GB + 1TB) | Winner |
|---|---|---|---|
| Price | $669.99 | $799.00 | GMKtec K15 (32GB + 512GB) |
| Rating | 4.4 | 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) |
| Storage Capacity | 512 GB | 1 TB | MINISFORUM UM870 Slim (32GB + 1TB) |
| CPU Model | Intel Core Ultra 5 125U | AMD Ryzen 7 8745H | Different strengths |
| Memory Configuration | 2x SO-DIMM (upgradeable) | Dual-channel | Different strengths |
| GPU Model | Intel Graphics (4 Xe cores) | AMD Radeon 780M | Different strengths |
| Memory Type | DDR5 | DDR5 | Tie |
| Memory Capacity | 32 GB | 32 GB | Tie |
$669.99
- + Price: $669.99
- - Rating: 4.4 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 $669.99
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 K15 (32GB + 512GB)
- MINISFORUM UM870 Slim (32GB + 1TB)
Loading price history...
Frequently Asked Questions
Which is better overall: GMKtec K15 (32GB + 512GB) 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 K15 (32GB + 512GB) and MINISFORUM UM870 Slim (32GB + 1TB)?
Price is one of the clearest differences: GMKtec K15 (32GB + 512GB) lists $669.99, while MINISFORUM UM870 Slim (32GB + 1TB) lists $799.00.
Which one looks better on price?
GMKtec K15 (32GB + 512GB) is listed at $669.99, while MINISFORUM UM870 Slim (32GB + 1TB) is listed at $799.00. GMKtec K15 (32GB + 512GB) (better spec).
Who should buy GMKtec K15 (32GB + 512GB)?
Choose GMKtec K15 (32GB + 512GB) 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 102 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.
- 102 Mini PCs
- 41 specs compared
- 38 filters
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$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)
Last priceSep 25, 2026$989.99
Unavailable
MINISFORUMMS-S1 Max (64GB + 2TB)
$2599.00
MINISFORUMMS-03 (Ultra 9 64GB + 1TB)
$2399.00
AppleMac Mini (M4 Pro 24GB + 512GB)
Last priceOct 6, 2026$1499.00
Unavailable
AppleMac Mini (M2 Pro 16GB + 512GB)
Last priceJul 31, 2026$1273.46
Unavailable
AppleMac Mini (M4 16GB + 512GB)
$995.00
GMKtecK17 Plus (32GB + 1TB)
5% OFF
$1099.99$1044.99
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)
18% OFF$679.99$559.99
BeelinkMini S13 (N150 12GB + 500GB)
Last priceOct 7, 2026$339.00
Unavailable
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 PCsGMKtecEVO-X3 (128GB + 2TB)
4.3(70)31% OFF$5499.99$3799.99
Mini PCsGMKtecEVO-X5 Pro (192GB + 2TB)
$6799.00
Mini PCsGMKtecG10 (16GB + 512GB)
4.1(309)$319.99
Mini PCsGMKtecG11 (16GB + 512GB)
4.4(1,916)32% OFF$499.99$339.99
Mini PCsGMKtecNucBox G3 Pro (16GB + 512GB)
4.4(1,916)33% OFF$459.99$309.99
Mini PCsGMKtecNucBox G3S (8GB + 256GB)
4.2(1,827)29% OFF$349.99$249.98- Mini PCsGMKtec
K15 (32GB + 512GB)
4.4(754)$669.99 
Mini PCsGMKtecK16 (32GB + 1TB)
4.2(381)$999.99- Mini PCsGMKtec
K17 Plus (32GB + 1TB)
4.6(53)5% OFF$1099.99$1044.99 
Mini PCsGMKtecNucBox M2 Pro S (16GB + 1TB)
4.4(830)$649.99
Mini PCsGMKtecNucBox M5 Ultra (32GB + 512GB)
4.3(1,003)25% OFF$559.99$419.99
Mini PCsGMKtecNucBox M6 Ultra (32GB + 1TB)
4.2(486)21% OFF$799.99$629.99- Mini PCsGMKtec
NucBox M7 Ultra (32GB + 512GB)
4.5(1,017)18% OFF$679.99$559.99 
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 PCsMINISFORUMUM890 Pro (32GB + 1TB)
4.3(399)$989.00
Mini PCsMINISFORUMX1 Lite-255 (32GB + 1TB)
4.5(220)$799.00