As an Amazon Associate I earn from qualifying purchases. (Also includes AliExpress affiliate links.)
QNAP TS-873U vs QNAP TS-877XU
The quick verdict
- Lower power drawQNAP TS-877XUdraws 73.1 W, 30.8 W less than the TS-873U
- Spec leadeach leads on 3 of 6 differing specs
- Best forTS-873U for creators moving large video files fast
Rankings and scores come from the specs alone and are not affected by affiliate commissions.
Spec ruler
In short
Bottom line. Of the 6 specs that differ, the QNAP TS-873U leads on 3 (LAN ports, weight, and volume) and the QNAP TS-877XU on 3 (boost clock, PCIe slots, and operating power). On our 10GbE video editing index, the TS-873U scores 94/100 against 80/100.
Using the 13 specs published on QNAP's official hardware specification pages, here is how the QNAP TS-873U and QNAP TS-877XU compare. Boost clock: the TS-877XU at 3.4 GHz versus 2.1 GHz for the TS-873U, 1.3 GHz higher (1.6x). Among 201 QNAP models, the TS-877XU ranks in the top 24% and the TS-873U in the bottom 31%. The TS-873U leads on LAN ports, 6 ports to 4 ports, 1.5x. Among 219 QNAP models, the TS-873U ranks in the top 1% and the TS-877XU in the top 18%. On PCIe slots, the TS-877XU posts 4 slots and the TS-873U 1 slot, a gap of 3 slots. Among 146 QNAP models, the TS-877XU ranks in the top 1% and the TS-873U in the top 49%. Weight: the TS-873U at 9.85 kg versus 12 kg for the TS-877XU, 2.15 kg lower (1.2x). Among 212 QNAP models, the TS-873U ranks in the bottom 36% and the TS-877XU in the bottom 22%.
Key differences 3
PCIe slotsTS-877XU leads
- TS-877XU 4 slots vs the TS-873U at 1 slot
- the TS-877XU has 4.0x the PCIe slots
- among 146 QNAP models: TS-877XU in the top 1%, TS-873U in the top 49%
4 PCIe slot(s) for a 10GbE card later
Boost clockTS-877XU leads
- TS-877XU 3.4 GHz vs the TS-873U at 2.1 GHz
- the TS-877XU is 1.6x higher
- among 201 QNAP models: TS-877XU in the top 24%, TS-873U in the bottom 31%
LAN portsTS-873U leads
- TS-873U 6 ports vs the TS-877XU at 4 ports
- the TS-873U has 1.5x the LAN ports
- among 219 QNAP models: TS-873U in the top 1%, TS-877XU in the top 18%
6 ports for link bonding or separate networks
Key specs at a glance
| Spec | TS-873U | TS-877XU |
|---|---|---|
| PCIe slots | 1top 49% | 4WINtop 1% |
| Boost clock | 2.1 GHzbottom 31% | 3.4 GHzWINtop 24% |
| LAN ports | 6WINtop 1% | 4top 18% |
| Operating power | 103.9 Wbottom 25% | 73.1 WWINbottom 41% |
| Weight | 9.85 kgWINbottom 36% | 12 kgbottom 22% |
| Volume | 22.9 LWINbottom 28% | 23.9 Lbottom 19% |
Show every spec
| Spec | TS-873U | TS-877XU |
|---|---|---|
| Drive bays | 8top 35% | 8top 35% |
| CPU cores | 4top 22% | 4top 22% |
| Boost clock | 2.1 GHzbottom 31% | 3.4 GHzWINtop 24% |
| Base RAM | 4 GBbottom 47% | 4 GBbottom 47% |
| Max RAM | 64 GBtop 19% | 64 GBtop 19% |
| Max LAN speed | 10 Gbpstop 2% | 10 Gbpstop 2% |
| LAN ports | 6WINtop 1% | 4top 18% |
| M.2 slots | 2top 4% | – |
| PCIe slots | 1top 49% | 4WINtop 1% |
| USB ports | 6top 4% | 6top 4% |
| Weight | 9.85 kgWINbottom 36% | 12 kgbottom 22% |
| Volume | 22.9 LWINbottom 28% | 23.9 Lbottom 19% |
| Operating power | 103.9 Wbottom 25% | 73.1 WWINbottom 41% |
| Warranty | 3 yrtop 7% | 3 yrtop 7% |
| Metric (0–100) | TS-873U | TS-877XU |
|---|---|---|
| Performance percentile | 65.4 | 76.6WIN |
| Lightness percentile | 35.5WIN | 20.6 |
| Compactness percentile | 23.4WIN | 16.4 |
| Small office fit | 100 | 100 |
| 10GbE video editing fit | 94WIN | 80 |
| Low-power compact 24/7 fit | 0 | 0 |
The details
How to choose
- LAN ports matters most → the TS-873U (6 ports vs 4 ports)
- PCIe slots matters most → the TS-877XU (4 slots vs 1 slot)
More TS-873U leads
- Weight: 9.85 kg vs 12 kg
- Volume: 22.9 L vs 23.9 L
More TS-877XU leads
- Operating power: 73.1 W vs 103.9 W
Combined metrics
- Total built-in LAN bandwidth (sum of port speeds): TS-873U 24 Gbps vs 22 Gbps
- Operating power per bay: TS-877XU 9.14 W vs 13 W
Combined metrics
- Weight per bay: TS-873U 1.23 kg vs 1.5 kg
- Memory headroom (max minus base): 60 GB on both
Same on both
- drive bays 8, CPU cores 4, base RAM 4 GB, max RAM 64 GB
- max LAN speed 10 Gbps, USB ports 6, warranty 3 years
Use-case scores
- 10GbE video editing: TS-873U 94 vs 80
Use-case scores are Specotomy's own index, computed by fixed rules from official manufacturer specs; they are not manufacturer scores.
FAQ
- Which draws less power, the QNAP TS-873U or the QNAP TS-877XU?
- The TS-877XU, with 73.1 W against 103.9 W for the TS-873U.
- Which is lighter, the QNAP TS-873U or the QNAP TS-877XU?
- The TS-873U, with 9.85 kg against 12 kg for the TS-877XU.
- Which use cases suit the QNAP TS-873U and the QNAP TS-877XU?
- 10GbE video editing: the TS-873U. (based on our own use-case index)