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be quiet! Straight Power 12 1500W vs Seasonic Prime TX-1000: Comparison
be quiet! Straight Power 12 1500W vs Seasonic Prime TX-1000 wattage compared
On wattage the spread is 33%, be quiet! Straight Power 12 1500W 1500 W against Seasonic Prime TX-1000 1000 W, so be quiet! Straight Power 12 1500W takes it. Seasonic Prime TX-1000 also leads on warranty, 10 years on the be quiet! Straight Power 12 1500W versus 12 years on the Seasonic Prime TX-1000. Add 12v-2x6 connectors to that, 2 on the be quiet! Straight Power 12 1500W versus 1 on the Seasonic Prime TX-1000, and the pattern holds. Pcie 8-pin connectors runs the same way, 4 on the be quiet! Straight Power 12 1500W versus 6 on the Seasonic Prime TX-1000, another win for Seasonic Prime TX-1000.
be quiet! Straight Power 12 1500W vs Seasonic Prime TX-1000: which one fits your build
The be quiet! Straight Power 12 1500W is the one to take for builders targeting an extreme multi-GPU or high-core-count workstation and anyone who wants fully modular cabling with native 12V-2x6 support, though it is not built for builds needing more than 1500W of continuous headroom and buyers who need the smallest possible SFX/SFX-L footprint. The Seasonic Prime TX-1000 suits high-end single-GPU gaming builds (RTX 4080/4090-class cards) and builders who want Titanium-tier efficiency with future GPU upgrade headroom, though it is not the pick for budget builds where a 550-650W unit would be sufficient and extreme dual-GPU or workstation rigs needing 1200W+.
Which is cheaper, be quiet! Straight Power 12 1500W or Seasonic Prime TX-1000?
Cost splits them too. Seasonic Prime TX-1000 sits at $270, be quiet! Straight Power 12 1500W at $300, 11% more.
Frequently asked questions
Do the be quiet! Straight Power 12 1500W and Seasonic Prime TX-1000 differ on hold-up time?
Yes. Hold-Up Time reads 20.1 ms on the be quiet! Straight Power 12 1500W versus 22 ms on the Seasonic Prime TX-1000.
Is the Modularity the same on the be quiet! Straight Power 12 1500W and Seasonic Prime TX-1000?
It is. Both are listed at Fully Modular, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- be quiet! Straight Power 12 1500W
- be quiet!
- Seasonic Prime TX-1000
- Seasonic
Wattage
- be quiet! Straight Power 12 1500W
- 1500 WBest
- Seasonic Prime TX-1000
- 1000 W-33%
80 PLUS Rating
- be quiet! Straight Power 12 1500W
- Platinum
- Seasonic Prime TX-1000
- Titanium
Model Number
- be quiet! Straight Power 12 1500W
- Straight Power 12 1500W
- Seasonic Prime TX-1000
- Prime TX-1000
ATX Standard
- be quiet! Straight Power 12 1500W
- ATX 3.0
- Seasonic Prime TX-1000
- ATX 3.0
Form Factor
- be quiet! Straight Power 12 1500W
- ATX
- Seasonic Prime TX-1000
- ATX
+12V Rail Amperage
- be quiet! Straight Power 12 1500W
- 125 A
- Seasonic Prime TX-1000
- 83 A
Single +12V Rail
- be quiet! Straight Power 12 1500W
- Yes
- Seasonic Prime TX-1000
- Yes
12V-2x6 Connectors
- be quiet! Straight Power 12 1500W
- 2
- Seasonic Prime TX-1000
- 1-50%
Hold-Up Time
- be quiet! Straight Power 12 1500W
- 20.1 ms-9%
- Seasonic Prime TX-1000
- 22 ms
Sleeved Cables
- be quiet! Straight Power 12 1500W
- Yes
- Seasonic Prime TX-1000
- Yes
PCIe 8-pin Connectors
- be quiet! Straight Power 12 1500W
- 4-33%
- Seasonic Prime TX-1000
- 6
Connector Count
- be quiet! Straight Power 12 1500W
- 1x 24-pin ATX, 1x EPS 4+4, 1x EPS 8-pin, 2x 12V-2x6, 4x PCIe 6+2-pin, 9x SATA, 2x Molex
- Seasonic Prime TX-1000
- 1x 24-pin ATX, 2x EPS 4+4, 1x 12V-2x6 (600W), 6x PCIe 6+2-pin, 8x SATA, 4x Molex
Fan Size
- be quiet! Straight Power 12 1500W
- 135 mm
- Seasonic Prime TX-1000
- 135 mm
Fan Model / Bearing
- be quiet! Straight Power 12 1500W
- 135mm Silent Wings, fluid dynamic bearing, 6-pole motor
- Seasonic Prime TX-1000
- Fluid Dynamic
Japanese Capacitors
- be quiet! Straight Power 12 1500W
- Yes
- Seasonic Prime TX-1000
- Yes
Length
- be quiet! Straight Power 12 1500W
- 180 mm
- Seasonic Prime TX-1000
- 170 mm
Colour
- be quiet! Straight Power 12 1500W
- Black
- Seasonic Prime TX-1000
- Black
MTBF
- be quiet! Straight Power 12 1500W
- 100000 hours
- Seasonic Prime TX-1000
- 100000 hours
Modularity
- be quiet! Straight Power 12 1500W
- Fully Modular
- Seasonic Prime TX-1000
- Fully Modular
Protections
- be quiet! Straight Power 12 1500W
- OTP, OCP, OPP, SCP, OVP, UVP, SIP
- Seasonic Prime TX-1000
- OCP, OVP, OPP, SCP, OTP, UVP
Price
- be quiet! Straight Power 12 1500W
- 299.99 USD
- Seasonic Prime TX-1000
- 269.99 USD
Warranty
- be quiet! Straight Power 12 1500W
- 10 years-17%
- Seasonic Prime TX-1000
- 12 yearsBest
Which one should you pick?
Choose be quiet! Straight Power 12 1500W if you want the higher wattage (1500 W vs 1000 W), the higher 12V-2x6 connectors (2 vs 1) and the higher MTBF (100000 hours vs 100000 hours).
Choose Seasonic Prime TX-1000 if you want the higher Hold-Up time (22 ms vs 20.1 ms), the higher PCIe 8-pin connectors (6 vs 4) and the higher warranty (12 years vs 10 years).
Price comparison
| Retailer | be quiet! Straight Power 12 1500W | Seasonic Prime TX-1000 |
|---|---|---|
| Amazon | $299.99 View on Amazon | |
| Newegg | View on Newegg | |
| Consumercarts listing | $269.99 View on Consumercarts listing |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
be quiet! Straight Power 12 1500W
8.8 / 10 Expert Rating
A best-in-class 1500W Platinum-rated ATX unit for an extreme multi-GPU or high-core-count workstation, held back only by its premium price.
Seasonic Prime TX-1000
9.2 / 10 Expert Rating
The Prime TX-1000 trades the flagship TX-1600's extreme headroom for a more affordable 1000W Titanium unit that still ships with sleeved cables and Seasonic's 12-year warranty.




