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QNAP TS-451D2 vs QNAP TS-453D
The quick verdict
- Leads on more specsQNAP TS-453D5 of 8 differing specs (CPU cores 4, base RAM 8 GB)
- Best forTS-453D for small offices sharing files
Rankings and scores come from the specs alone and are not affected by affiliate commissions.
Spec ruler
In short
Bottom line. Of the 8 specs that differ, the QNAP TS-451D2 leads on 3 (boost clock, weight, and volume) and the QNAP TS-453D on 5 (CPU cores, base RAM, max LAN speed, and 2 more). On our small-office file server index, the TS-453D scores 60/100 against 40/100.
Using the 11 specs published on QNAP's official hardware specification pages, here is how the QNAP TS-451D2 and QNAP TS-453D compare. CPU cores: the TS-453D at 4 cores versus 2 cores for the TS-451D2, 2 cores more (2.0x). Among 204 QNAP models, the TS-453D ranks in the top 22% and the TS-451D2 in the bottom 9%. The TS-451D2 leads on boost clock, 2.9 GHz to 2.7 GHz. Among 201 QNAP models, the TS-451D2 ranks in the top 39% and the TS-453D in the top 49%. On base RAM, the TS-453D posts 8 GB and the TS-451D2 4 GB, a gap of 4 GB. Among 219 QNAP models, the TS-453D ranks in the top 23% and the TS-451D2 in the bottom 47%. Max LAN speed: the TS-453D at 2.5 Gbps versus 1 Gbps for the TS-451D2, 1.5 Gbps higher (2.5x). Among 219 QNAP models, the TS-453D ranks in the bottom 48% and the TS-451D2 in the bottom 22%.
Key differences 3
Max LAN speedTS-453D leads
- TS-453D 2.5 Gbps vs the TS-451D2 at 1 Gbps
- the TS-453D is 2.5x faster
- among 219 QNAP models: TS-453D in the bottom 48%, TS-451D2 in the bottom 22%
100 GB copy: about 5 min vs about 13 min (theoretical)
CPU coresTS-453D leads
- TS-453D 4 cores vs the TS-451D2 at 2 cores
- the TS-453D has 2.0x the CPU cores
- among 204 QNAP models: TS-453D in the top 22%, TS-451D2 in the bottom 9%
4 cores for backups and transcodes at once
Base RAMTS-453D leads
- TS-453D 8 GB vs the TS-451D2 at 4 GB
- the TS-453D has 2.0x the base RAM
- among 219 QNAP models: TS-453D in the top 23%, TS-451D2 in the bottom 47%
8 GB out of the box for several apps
Key specs at a glance
| Spec | TS-451D2 | TS-453D |
|---|---|---|
| Max LAN speed | 1 Gbpsbottom 22% | 2.5 GbpsWINbottom 48% |
| CPU cores | 2bottom 9% | 4WINtop 22% |
| Base RAM | 4 GBbottom 47% | 8 GBWINtop 23% |
| Warranty | 2 yrbottom 35% | 3 yrWINtop 7% |
| USB ports | 4top 35% | 5WINtop 18% |
| Volume | 5.8 LWINtop 17% | 6.46 Ltop 24% |
Show every spec
| Spec | TS-451D2 | TS-453D |
|---|---|---|
| Drive bays | 4bottom 35% | 4bottom 35% |
| CPU cores | 2bottom 9% | 4WINtop 22% |
| Boost clock | 2.9 GHzWINtop 39% | 2.7 GHztop 49% |
| Base RAM | 4 GBbottom 47% | 8 GBWINtop 23% |
| Max RAM | 8 GBbottom 25% | 8 GBbottom 25% |
| Max LAN speed | 1 Gbpsbottom 22% | 2.5 GbpsWINbottom 48% |
| LAN ports | 2bottom 38% | 2bottom 38% |
| M.2 slots | – | 0bottom 46% |
| PCIe slots | – | 1top 49% |
| USB ports | 4top 35% | 5WINtop 18% |
| Weight | 2.09 kgWINtop 14% | 2.26 kgtop 15% |
| Volume | 5.8 LWINtop 17% | 6.46 Ltop 24% |
| Operating power | – | 26 Wtop 14% |
| Warranty | 2 yrbottom 35% | 3 yrWINtop 7% |
| Metric (0–100) | TS-451D2 | TS-453D |
|---|---|---|
| Performance percentile | 6.8 | 24WIN |
| Lightness percentile | 86.3WIN | 85.1 |
| Compactness percentile | 83.8WIN | 76.2 |
| Home media server fit | No data | 100 |
| Small office fit | 40 | 60WIN |
| 10GbE video editing fit | 1 | 25WIN |
| Low-power compact 24/7 fit | No data | 66 |
The details
How to choose
- Volume matters most → the TS-451D2 (5.8 L vs 6.46 L)
- Max LAN speed matters most → the TS-453D (2.5 Gbps vs 1 Gbps)
More TS-451D2 leads
- Volume: 5.8 L vs 6.46 L
- Weight: 2.09 kg vs 2.26 kg
- Boost clock: 2.9 GHz vs 2.7 GHz
More TS-453D leads
- Warranty: 3 years vs 2 years
- USB ports: 5 ports vs 4 ports
Combined metrics
- Total built-in LAN bandwidth (sum of port speeds): TS-453D 5 Gbps vs 2 Gbps
- Weight per bay: TS-451D2 0.52 kg vs 0.57 kg
- Memory headroom (max minus base): TS-451D2 4 GB vs 0 GB
Same on both
- drive bays 4, max RAM 8 GB, LAN ports 2
Use-case scores
- Small-office file server: TS-453D 60 vs 40
- 10GbE video editing: TS-453D 25 vs 1
Use-case scores are Specotomy's own index, computed by fixed rules from official manufacturer specs; they are not manufacturer scores.
FAQ
- Which has the faster built-in LAN, the QNAP TS-451D2 or the QNAP TS-453D?
- The TS-453D, with 2.5 Gbps against 1 Gbps for the TS-451D2.
- Which is lighter, the QNAP TS-451D2 or the QNAP TS-453D?
- The TS-451D2, with 2.09 kg against 2.26 kg for the TS-453D.
- Which use cases suit the QNAP TS-451D2 and the QNAP TS-453D?
- A small-office file server: the TS-453D. (based on our own use-case index)