Updated September 2026
Data from Amazon and official Beelink and GMKtec sites.
2026 verdict
Entry-level Ryzen 3 against a much newer Ryzen 5 in this mini PC pairing, and the newer chip wins on raw specs.
GMKtec NucBox M6 Ultra (32GB + 1TB) doubles the memory to 32GB of DDR5 running at 4800 MT/s, versus 16GB of DDR4 at 2400 MT/s in Beelink SER3 (16GB + 500GB), and doubles the storage too, 1TB against 500GB. Beelink SER3 (16GB + 500GB) answers with a lower price, a three-year warranty against one year, and a track record of owners reporting it still running well years after purchase. Display output favors GMKtec as well: it adds a DisplayPort and a USB4 port for a third screen, where the Beelink covers two displays over dual HDMI alone. Choose Beelink SER3 (16GB + 500GB) for the lowest price and proven longevity in a light-use role; choose GMKtec NucBox M6 Ultra (32GB + 1TB) for meaningfully more memory, storage and display flexibility.
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| Feature | Beelink SER3 (16GB + 500GB) | GMKtec NucBox M6 Ultra (32GB + 1TB) | Winner |
|---|---|---|---|
| Price | $269.00 | $629.99 | Beelink SER3 (16GB + 500GB) |
| Rating | 4.4 | 4.2 | Beelink SER3 (16GB + 500GB) |
| Warranty | 3 years | 1 year | Beelink SER3 (16GB + 500GB) |
| Memory Type | DDR4 | DDR5 | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Memory Speed | 2400 MT/s | 4800 MT/s | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Memory Capacity | 16 GB | 32 GB | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| Storage Capacity | 500 GB | 1 TB | GMKtec NucBox M6 Ultra (32GB + 1TB) |
| CPU Model | AMD Ryzen 3 3200U | AMD Ryzen 5 7640HS | Different strengths |
| Memory Configuration | Dual-slot | Dual-channel | Different strengths |
| GPU Model | AMD Radeon Vega 3 | AMD Radeon 760M | Different strengths |
10% OFF
$269.00
$299.00
- + Price: $269.00
- + Rating: 4.4
- + Warranty: 3 years
- - Memory Type: DDR4 vs DDR5
- - Memory Speed: 2400 MT/s vs 4800 MT/s
Winner
21% OFF
$629.99
$799.99
- + Memory Type: DDR5
- + Memory Speed: 4800 MT/s
- + Memory Capacity: 32 GB
- - Price: $629.99 vs $269.00
- - Rating: 4.2 vs 4.4
Frequently Asked Questions
Which is better overall: Beelink SER3 (16GB + 500GB) or GMKtec NucBox M6 Ultra (32GB + 1TB)?
GMKtec NucBox M6 Ultra (32GB + 1TB), on specification: double the memory, double the storage and faster DDR5. Beelink SER3 (16GB + 500GB) wins on price, warranty and owner rating.
What is the biggest difference between them?
Generation and headroom. Beelink SER3 (16GB + 500GB) uses an older, entry-level Ryzen 3 3200U with 16GB of memory and a 500GB drive, while GMKtec NucBox M6 Ultra (32GB + 1TB) runs a newer six-core Ryzen 5 with 32GB of DDR5 and a 1TB drive.
Which one can drive more displays?
GMKtec NucBox M6 Ultra (32GB + 1TB), with HDMI, DisplayPort and a full-featured USB4 port covering up to three screens. Beelink SER3 (16GB + 500GB) has dual HDMI only, for two displays.
Which has the longer warranty?
Beelink SER3 (16GB + 500GB), covered for three years against GMKtec NucBox M6 Ultra (32GB + 1TB)'s one year.
Who should buy the Beelink SER3 (16GB + 500GB)?
Buyers on a tight budget who mainly browse, use office documents and stream media, and who value a longer warranty and a strong track record of long-term reliability.
Who should buy the GMKtec NucBox M6 Ultra (32GB + 1TB)?
Buyers who want meaningfully more memory and storage out of the box, a third display over USB4, and a newer processor for heavier multitasking, home lab or light gaming use.
Full comparison table
Compare all 77 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.
- 77 Mini PCs
- 41 specs compared
- 38 filters
AsusNUC 15 Pro+ (Ultra 9 32GB + 1TB)
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AsusNUC 13 Pro Slim (i7 16GB + 512GB)
$989.99
AsusROG GR70 (RTX 5070 32GB + 2TB)
$2599.00
MINISFORUMMS-A2 (Ryzen 9 9955HX 96GB + 2TB)
$2099.00
MINISFORUMM1 Pro-125H (32GB + 1TB)
$895.00
BeelinkSER9 Pro (24GB + 1TB)
$689.00
AppleMac Mini (M4 16GB + 512GB)
$979.00
AppleMac Mini (M4 Pro 24GB + 512GB)
$1569.00
AppleMac Mini (M2 Pro 16GB + 512GB)
$1273.46
GMKtecK17 Plus (32GB + 1TB)
27% OFF$1299.99$949.99
GMKtecNucBox M7 Ultra (32GB + 512GB)
$679.99
BeelinkMini S12 Pro (N100 16GB + 500GB)
$339.00
BeelinkMini S12 (N95 8GB + 480GB)
7% OFF$299.00$279.00
AsusChromebox 5a (Celeron 4GB + 128GB)
10% OFF$399.00$359.00
MINISFORUMMS-S1 Max (128GB + 2TB)
$3799.00
GMKtecNucBox G3 Pro (16GB + 512GB)
28% OFF$459.99$329.99
BeelinkEQR5 (5500U 16GB + 480GB)
11% OFF$449.00$399.00- Beelink
SER3 (16GB + 500GB)
10% OFF$299.00$269.00 
GMKtecNucBox M2 Pro S (16GB + 1TB)
$499.98
GeekomA5 Pro (Ryzen 5 16GB + 512GB)
$569.00
Mini PCsBeelinkEQi 304 (24GB + 512GB)
4.3(702)$629.00
Mini PCsBeelinkEQi13 (16GB + 500GB)
4.3(218)$499.00- Mini PCsBeelink
EQR5 (5500U 16GB + 480GB)
4.4(1,544)11% OFF$449.00$399.00 
Mini PCsBeelinkEQR7 (7735U 16GB + 500GB)
4.3(384)$479.00
Mini PCsBeelinkGTi14 (32GB + 1TB)
4.0(32)$1049.00
Mini PCsBeelinkGTi15 Ultra (64GB + 1TB)
4.4(34)$1499.00
Mini PCsBeelinkGTi15 Ultra (96GB + 2TB)
4.3(218)$1949.00
Mini PCsBeelinkGTR9 Pro (128GB + 2TB)
3.4(20)$3639.00
Mini PCsBeelinkME mini (N150 12GB + 64GB)
4.0(14)$279.00
Mini PCsBeelinkME Pro (N150 16GB + 1TB)
4.0(4)$539.00- Mini PCsBeelink
Mini S12 (N95 8GB + 480GB)
4.5(262)7% OFF$299.00$279.00 - Mini PCsBeelink
Mini S12 Pro (N100 16GB + 500GB)
4.5(653)$339.00 
Mini PCsBeelinkMini S13 (N150 16GB + 500GB)
4.2(145)$349.00
Mini PCsBeelinkSEi14 (32GB + 1TB)
4.4(34)$829.00
Mini PCsBeelinkSER10 Max (32GB + 1TB)
4.0(2)$1299.00- Mini PCsBeelink
SER3 (16GB + 500GB)
4.4(1,541)10% OFF$299.00$269.00 
Mini PCsBeelinkSER5 MAX (7735HS 24GB + 500GB)
4.2(316)$529.00
Mini PCsBeelinkSER5 Pro (16GB + 480GB)
4.4(39)$389.00
Mini PCsBeelinkSER8 (32GB + 1TB)
4.4(4)$939.00
Mini PCsBeelinkSER9 Max (64GB + 1TB)
4.4(173)$1149.00
Mini PCsGMKtecG10 (16GB + 512GB)
4.2(302)10% OFF$319.99$287.98- Mini PCsGMKtec
NucBox G3 Pro (16GB + 512GB)
4.4(1,911)28% OFF$459.99$329.99 
Mini PCsGMKtecNucBox G3S (8GB + 256GB)
4.2(1,818)$249.99- Mini PCsGMKtec
K17 Plus (32GB + 1TB)
4.6(53)27% OFF$1299.99$949.99 - Mini PCsGMKtec
NucBox M2 Pro S (16GB + 1TB)
4.4(822)$499.98 
Mini PCsGMKtecNucBox M5 Ultra (32GB + 512GB)
4.3(994)$559.99
Mini PCsGMKtecNucBox M6 Ultra (32GB + 1TB)
4.2(480)21% OFF$799.99$629.99- Mini PCsGMKtec
NucBox M7 Ultra (32GB + 512GB)
4.5(1,020)$679.99