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QNAP TS-453BU vs QNAP TS-453DU
The quick verdict
- Leads on more specsQNAP TS-453DU5 of 7 differing specs (boost clock 2.7 GHz, base RAM 4 GB)
- Best forTS-453DU 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 7 specs that differ, the QNAP TS-453BU leads on 2 (LAN ports and volume) and the QNAP TS-453DU on 5 (boost clock, base RAM, max LAN speed, and 2 more). On our home media server index, the TS-453DU scores 51/100 against 47/100.
Using the 14 specs published on QNAP's official hardware specification pages, here is how the QNAP TS-453BU and QNAP TS-453DU compare. Boost clock: the TS-453DU at 2.7 GHz versus 2.3 GHz for the TS-453BU, 0.4 GHz higher (1.2x). Among 201 QNAP models, the TS-453DU ranks in the top 49% and the TS-453BU in the bottom 44%. The TS-453DU leads on base RAM, 4 GB to 2 GB, 2.0x. Among 219 QNAP models, the TS-453DU ranks in the bottom 47% and the TS-453BU in the bottom 14%. On max LAN speed, the TS-453DU posts 2.5 Gbps and the TS-453BU 1 Gbps, a gap of 1.5 Gbps. Among 219 QNAP models, the TS-453DU ranks in the bottom 48% and the TS-453BU in the bottom 22%. LAN ports: the TS-453BU at 4 ports versus 2 ports for the TS-453DU, 2 ports more (2.0x). Among 219 QNAP models, the TS-453BU ranks in the top 18% and the TS-453DU in the bottom 38%.
Key differences 3
Max LAN speedTS-453DU leads
- TS-453DU 2.5 Gbps vs the TS-453BU at 1 Gbps
- the TS-453DU is 2.5x faster
- among 219 QNAP models: TS-453DU in the bottom 48%, TS-453BU in the bottom 22%
100 GB copy: about 5 min vs about 13 min (theoretical)
Base RAMTS-453DU leads
- TS-453DU 4 GB vs the TS-453BU at 2 GB
- the TS-453DU has 2.0x the base RAM
- among 219 QNAP models: TS-453DU in the bottom 47%, TS-453BU in the bottom 14%
4 GB out of the box for several apps
LAN portsTS-453BU leads
- TS-453BU 4 ports vs the TS-453DU at 2 ports
- the TS-453BU has 2.0x the LAN ports
- among 219 QNAP models: TS-453BU in the top 18%, TS-453DU in the bottom 38%
4 ports for link bonding or separate networks
Key specs at a glance
| Spec | TS-453BU | TS-453DU |
|---|---|---|
| Max LAN speed | 1 Gbpsbottom 22% | 2.5 GbpsWINbottom 48% |
| Base RAM | 2 GBbottom 14% | 4 GBWINbottom 47% |
| LAN ports | 4WINtop 18% | 2bottom 38% |
| Boost clock | 2.3 GHzbottom 44% | 2.7 GHzWINtop 49% |
| Weight | 7.46 kgtop 44% | 6.6 kgWINtop 39% |
| Operating power | 33.7 Wtop 25% | 32 WWINtop 22% |
Show every spec
| Spec | TS-453BU | TS-453DU |
|---|---|---|
| Drive bays | 4bottom 35% | 4bottom 35% |
| CPU cores | 4top 22% | 4top 22% |
| Boost clock | 2.3 GHzbottom 44% | 2.7 GHzWINtop 49% |
| Base RAM | 2 GBbottom 14% | 4 GBWINbottom 47% |
| Max RAM | 8 GBbottom 25% | 8 GBbottom 25% |
| Max LAN speed | 1 Gbpsbottom 22% | 2.5 GbpsWINbottom 48% |
| LAN ports | 4WINtop 18% | 2bottom 38% |
| M.2 slots | 0bottom 46% | 0bottom 46% |
| PCIe slots | 1top 49% | 1top 49% |
| USB ports | 4top 35% | 4top 35% |
| Weight | 7.46 kgtop 44% | 6.6 kgWINtop 39% |
| Volume | 9.64 LWINtop 35% | 10.1 Ltop 39% |
| Operating power | 33.7 Wtop 25% | 32 WWINtop 22% |
| Warranty | 3 yrtop 7% | 3 yrtop 7% |
| Metric (0–100) | TS-453BU | TS-453DU |
|---|---|---|
| Performance percentile | 17.2 | 24WIN |
| Lightness percentile | 55.9 | 61.1WIN |
| Compactness percentile | 64.6WIN | 61.6 |
| Home media server fit | 47 | 51WIN |
| Small office fit | 40 | 60WIN |
| 10GbE video editing fit | 23 | 25WIN |
| Low-power compact 24/7 fit | 14 | 14 |
The details
How to choose
- LAN ports matters most → the TS-453BU (4 ports vs 2 ports)
- Max LAN speed matters most → the TS-453DU (2.5 Gbps vs 1 Gbps)
More TS-453BU leads
- Volume: 9.64 L vs 10.1 L
More TS-453DU leads
- Boost clock: 2.7 GHz vs 2.3 GHz
- Weight: 6.6 kg vs 7.46 kg
- Operating power: 32 W vs 33.7 W
Combined metrics
- Expansion slots in total (M.2 plus PCIe): 1 on both
- Total built-in LAN bandwidth (sum of port speeds): TS-453DU 5 Gbps vs 4 Gbps
- Operating power per bay: TS-453DU 8.01 W vs 8.43 W
Combined metrics
- Weight per bay: TS-453DU 1.65 kg vs 1.87 kg
- Memory headroom (max minus base): TS-453BU 6 GB vs 4 GB
Same on both
- drive bays 4, CPU cores 4, max RAM 8 GB, M.2 slots 0
- PCIe slots 1, USB ports 4, warranty 3 years
Use-case scores
- Home media server: TS-453DU 51 vs 47
- Small-office file server: TS-453DU 60 vs 40
- 10GbE video editing: TS-453DU 25 vs 23
Variant TS-453DU-RP
- matches the TS-453DU on drive bays, CPU cores, boost clock, and 8 more but differs on weight (8.12 kg vs 6.6 kg), volume (10.6 L vs 10.1 L), and operating power (45.3 W vs 32 W).
- Where values differ, this comparison does not carry over to the TS-453DU-RP.
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-453BU or the QNAP TS-453DU?
- The TS-453DU, with 2.5 Gbps against 1 Gbps for the TS-453BU.
- Which draws less power, the QNAP TS-453BU or the QNAP TS-453DU?
- The TS-453DU, with 32 W against 33.7 W for the TS-453BU.
- Which is lighter, the QNAP TS-453BU or the QNAP TS-453DU?
- The TS-453DU, with 6.6 kg against 7.46 kg for the TS-453BU.
- Which use cases suit the QNAP TS-453BU and the QNAP TS-453DU?
- A home media server: the TS-453DU. A small-office file server: the TS-453DU. (based on our own use-case index)