Updated September 2026
Data from Amazon and official Beelink and GMKtec sites.
2026 verdict
A dual-core chip against an 8-core chip is the real story here, and it pushes this comparison to the GMKtec NucBox M5 Ultra (32GB + 512GB), which pairs an AMD Ryzen 7 7730U with double the memory speed, double the memory capacity at 32GB and double the storage at 512GB against the Beelink SER3 (16GB + 500GB)'s 500GB drive. The Beelink SER3 (16GB + 500GB) fights back on price, a higher owner rating and a longer 3 year warranty against the GMKtec's 1 year, and it remains a capable machine for browsing, documents and media. Both include an M.2 SSD slot and dual-channel-capable DDR4 memory, so upgrades are possible on either. Buyers who need real multi-core performance for multitasking or light server work should choose the GMKtec NucBox M5 Ultra (32GB + 512GB); anyone on a strict budget who only needs a browsing and streaming machine should stick with the Beelink SER3 (16GB + 500GB).
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| Feature | Beelink SER3 (16GB + 500GB) | GMKtec NucBox M5 Ultra (32GB + 512GB) | Winner |
|---|---|---|---|
| Price | $269.00 | $559.99 | Beelink SER3 (16GB + 500GB) |
| Rating | 4.4 | 4.3 | Beelink SER3 (16GB + 500GB) |
| Warranty | 3 years | 1 year | Beelink SER3 (16GB + 500GB) |
| Memory Speed | 2400 MT/s | 3200 MT/s | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| Memory Capacity | 16 GB | 32 GB | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| Storage Capacity | 500 GB | 512 GB | GMKtec NucBox M5 Ultra (32GB + 512GB) |
| CPU Model | AMD Ryzen 3 3200U | AMD Ryzen 7 7730U | Different strengths |
| Memory Configuration | Dual-slot | Dual-channel | Different strengths |
| GPU Model | AMD Radeon Vega 3 | AMD Radeon Graphics (8 cores, up to 2000 MHz) | Different strengths |
| Memory Type | DDR4 | DDR4 | Tie |
10% OFF
$269.00
$299.00
- + Price: $269.00
- + Rating: 4.4
- + Warranty: 3 years
- - Memory Speed: 2400 MT/s vs 3200 MT/s
- - Memory Capacity: 16 GB vs 32 GB
Winner
$559.99
- + Memory Speed: 3200 MT/s
- + Memory Capacity: 32 GB
- + Storage Capacity: 512 GB
- - Price: $559.99 vs $269.00
- - Rating: 4.3 vs 4.4
Frequently Asked Questions
Which is better overall: Beelink SER3 (16GB + 500GB) or GMKtec NucBox M5 Ultra (32GB + 512GB)?
The GMKtec NucBox M5 Ultra (32GB + 512GB), which wins on memory speed, memory capacity and storage capacity. The Beelink SER3 (16GB + 500GB) wins on price, owner rating and warranty length.
What is the biggest difference between the Beelink SER3 (16GB + 500GB) and the GMKtec NucBox M5 Ultra (32GB + 512GB)?
The processor. The Beelink SER3 (16GB + 500GB) uses a dual-core, four-thread AMD Ryzen 3 3200U, while the GMKtec NucBox M5 Ultra (32GB + 512GB) runs an 8-core, 16-thread AMD Ryzen 7 7730U, a much stronger chip for multitasking and heavier workloads.
Which one has more memory and storage?
The GMKtec NucBox M5 Ultra (32GB + 512GB) on both counts: 32GB of DDR4 against the Beelink SER3 (16GB + 500GB)'s 16GB, and 512GB of storage against 500GB, though the gap in storage is negligible.
Which has the longer warranty?
The Beelink SER3 (16GB + 500GB), covered for 3 years against the GMKtec NucBox M5 Ultra (32GB + 512GB)'s 1 year.
Who should buy the Beelink SER3 (16GB + 500GB)?
Buyers on a tight budget who only need browsing, office documents, streaming and light media work, and who value the longer warranty.
Who should buy the GMKtec NucBox M5 Ultra (32GB + 512GB)?
Buyers who need real multi-core performance for multitasking, virtualization or a home server, and who can accept a shorter 1 year warranty in exchange.
Full comparison table
Compare all 62 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.
- 62 Mini PCs
- 41 specs compared
- 38 filters
BeelinkGTi15 Ultra (96GB + 2TB)
$1949.00
AsusNUC 15 Pro+ (Ultra 9 32GB + 1TB)
$1899.00
AsusNUC 13 Pro Slim (i7 16GB + 512GB)
$949.99
AsusROG GR70 (RTX 5070 32GB + 2TB)
$2599.00
BeelinkMini S12 Pro (N100 16GB + 500GB)
$339.00
AsusNUC 15 Pro Slim (Core 5 16GB + 512GB)
$1071.40
AppleMac Mini (M4 Pro 24GB + 512GB)
$1569.00
BeelinkSER8 (32GB + 1TB)
$939.00
BeelinkSER9 Pro (24GB + 1TB)
$689.00
AppleMac Mini (M4 16GB + 512GB)
$979.99
AppleMac Mini (M2 Pro 16GB + 512GB)
$1273.46
BeelinkSER5 Pro (16GB + 480GB)
$389.00
BeelinkSEi14 (32GB + 1TB)
$829.00
GMKtecNucBox M7 Ultra (32GB + 512GB)
$599.99
GeekomGT1 Mega Ultra 9
$1149.00
BeelinkMini S12 (N95 8GB + 480GB)
$289.00
BeelinkEQi 304 (24GB + 512GB)
$629.00
GeekomA9 Mega (128GB + 2TB)
5% OFF$3999.00$3799.04
GMKtecNucBox G3 Pro (16GB + 512GB)
28% OFF$459.99$329.99
GMKtecNucBox M2 Pro S (16GB + 1TB)
$499.98
- Mini PCsBeelink
EQi 304 (24GB + 512GB)
$629.00 
Mini PCsBeelinkGTi14 (32GB + 1TB)
$1049.00
Mini PCsBeelinkGTi15 Ultra (64GB + 1TB)
$1499.00- Mini PCsBeelink
GTi15 Ultra (96GB + 2TB)
$1949.00 
Mini PCsBeelinkGTR9 Pro (128GB + 2TB)
$3639.00- Mini PCsBeelink
Mini S12 (N95 8GB + 480GB)
$289.00 - Mini PCsBeelink
Mini S12 Pro (N100 16GB + 500GB)
$339.00 
Mini PCsBeelinkMini S13 (N150 16GB + 500GB)
$399.00- Mini PCsBeelink
SEi14 (32GB + 1TB)
$829.00 
Mini PCsBeelinkSER10 Max (32GB + 1TB)
5% OFF$1299.00$1229.00- Mini PCsBeelink
SER3 (16GB + 500GB)
10% OFF$299.00$269.00 - Mini PCsBeelink
SER5 Pro (16GB + 480GB)
$389.00 - Mini PCsBeelink
SER8 (32GB + 1TB)
$939.00 
Mini PCsBeelinkSER9 Max (64GB + 1TB)
$1149.00- Mini PCsBeelink
SER9 Pro (24GB + 1TB)
$689.00
Mini PCsGMKtecG10 (16GB + 512GB)
$319.99- Mini PCsGMKtec
NucBox G3 Pro (16GB + 512GB)
28% OFF$459.99$329.99 
Mini PCsGMKtecNucBox G3S (8GB + 256GB)
$249.99- Mini PCsGMKtec
NucBox M2 Pro S (16GB + 1TB)
$499.98 
Mini PCsGMKtecNucBox M5 Ultra (32GB + 512GB)
$559.99
Mini PCsGMKtecNucBox M6 Ultra (32GB + 1TB)
$629.99- Mini PCsGMKtec
NucBox M7 Ultra (32GB + 512GB)
$599.99