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ASUS ROG Strix 1000W Gold ATX3.0 vs Thermaltake Smart BX3 650W: Comparison
What is the difference between ASUS ROG Strix 1000W Gold ATX3.0 and Thermaltake Smart BX3 650W?
On wattage the spread is 35%, ASUS ROG Strix 1000W Gold ATX3.0 1000 W against Thermaltake Smart BX3 650W 650 W, so ASUS ROG Strix 1000W Gold ATX3.0 takes it. ASUS ROG Strix 1000W Gold ATX3.0 also leads on warranty, 10 years on the ASUS ROG Strix 1000W Gold ATX3.0 versus 5 years on the Thermaltake Smart BX3 650W. Add pcie 8-pin connectors to that, 4 on the ASUS ROG Strix 1000W Gold ATX3.0 versus 2 on the Thermaltake Smart BX3 650W, and the pattern holds. Hold-up time runs the same way, 26.2 ms on the ASUS ROG Strix 1000W Gold ATX3.0 versus 17 ms on the Thermaltake Smart BX3 650W, another win for ASUS ROG Strix 1000W Gold ATX3.0.
ASUS ROG Strix 1000W Gold ATX3.0 vs Thermaltake Smart BX3 650W: which one fits your build
The ASUS ROG Strix 1000W Gold ATX3.0 suits high-end single-GPU gaming builds (RTX 4080/4090-class cards) and builders who want Gold-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+. Buy the Thermaltake Smart BX3 650W for budget RTX 4060 Ti/4070 builds wanting native ATX 3.0 and mainstream gaming PCs on a tight budget, though it is the wrong buy for anyone chasing Gold-or-better efficiency and high-wattage or multi-GPU builds.
Which is cheaper, ASUS ROG Strix 1000W Gold ATX3.0 or Thermaltake Smart BX3 650W?
At the last price check the Thermaltake Smart BX3 650W was $74.99 and the ASUS ROG Strix 1000W Gold ATX3.0 $190, a 153% premium.
Frequently asked questions
Do the ASUS ROG Strix 1000W Gold ATX3.0 and Thermaltake Smart BX3 650W differ on modularity?
Yes. Modularity reads Fully Modular on the ASUS ROG Strix 1000W Gold ATX3.0 versus Non-Modular on the Thermaltake Smart BX3 650W.
Is the Form Factor the same on the ASUS ROG Strix 1000W Gold ATX3.0 and Thermaltake Smart BX3 650W?
It is. Both are listed at ATX, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- ASUS ROG Strix 1000W Gold ATX3.0
- ASUS
- Thermaltake Smart BX3 650W
- Thermaltake
Wattage
- ASUS ROG Strix 1000W Gold ATX3.0
- 1000 WBest
- Thermaltake Smart BX3 650W
- 650 W-35%
80 PLUS Rating
- ASUS ROG Strix 1000W Gold ATX3.0
- Gold
- Thermaltake Smart BX3 650W
- Bronze
Model Number
- ASUS ROG Strix 1000W Gold ATX3.0
- ROG Strix 1000W Gold ATX3.0
- Thermaltake Smart BX3 650W
- PS-SPD-0650NNFABU-3
ATX Standard
- ASUS ROG Strix 1000W Gold ATX3.0
- ATX 3.0
- Thermaltake Smart BX3 650W
- ATX 3.1
Form Factor
- ASUS ROG Strix 1000W Gold ATX3.0
- ATX
- Thermaltake Smart BX3 650W
- ATX
Single +12V Rail
- ASUS ROG Strix 1000W Gold ATX3.0
- Yes
- Thermaltake Smart BX3 650W
- Yes
12V-2x6 Connectors
- ASUS ROG Strix 1000W Gold ATX3.0
- 1
- Thermaltake Smart BX3 650W
- 0
Hold-Up Time
- ASUS ROG Strix 1000W Gold ATX3.0
- 26.2 ms
- Thermaltake Smart BX3 650W
- 17 ms-35%
Zero-RPM Mode
- ASUS ROG Strix 1000W Gold ATX3.0
- Yes
- Thermaltake Smart BX3 650W
- Yes
Sleeved Cables
- ASUS ROG Strix 1000W Gold ATX3.0
- No
- Thermaltake Smart BX3 650W
- No
PCIe 8-pin Connectors
- ASUS ROG Strix 1000W Gold ATX3.0
- 4
- Thermaltake Smart BX3 650W
- 2-50%
Connector Count
- ASUS ROG Strix 1000W Gold ATX3.0
- 1x 24-pin ATX, 2x EPS 4+4, 1x PCIe 16-pin, 4x PCIe 6+2-pin, 5x SATA, 4x Molex
- Thermaltake Smart BX3 650W
- 1x 24-pin ATX, 2x EPS 4+4, 2x PCIe 6+2-pin, 4x SATA, 4x Molex (all fixed)
Fan Size
- ASUS ROG Strix 1000W Gold ATX3.0
- 135 mm
- Thermaltake Smart BX3 650W
- 120 mm
Fan Model / Bearing
- ASUS ROG Strix 1000W Gold ATX3.0
- 135mm double ball bearing (CF1325H12D), Axial-tech
- Thermaltake Smart BX3 650W
- 120mm FDB (fluid dynamic bearing) fan with Smart Zero Fan
OEM / Platform
- ASUS ROG Strix 1000W Gold ATX3.0
- CWT
- Thermaltake Smart BX3 650W
- CWT
EPS 8-pin Connectors
- ASUS ROG Strix 1000W Gold ATX3.0
- 2
- Thermaltake Smart BX3 650W
- 2
SATA Connectors
- ASUS ROG Strix 1000W Gold ATX3.0
- 5
- Thermaltake Smart BX3 650W
- 4
Molex Connectors
- ASUS ROG Strix 1000W Gold ATX3.0
- 4
- Thermaltake Smart BX3 650W
- 4
Cable Lengths
- ASUS ROG Strix 1000W Gold ATX3.0
- 24-pin 600mm, EPS 650mm, 16-pin 610mm, PCIe 610mm, SATA 400+120+120mm, Molex 400+150+150+150mm
- Thermaltake Smart BX3 650W
- 24-pin 500mm, EPS 500mm, PCIe 450mm, SATA 500mm
Length
- ASUS ROG Strix 1000W Gold ATX3.0
- 180 mm
- Thermaltake Smart BX3 650W
- 140 mm
Colour
- ASUS ROG Strix 1000W Gold ATX3.0
- Black
- Thermaltake Smart BX3 650W
- Black
Fan Bearing
- ASUS ROG Strix 1000W Gold ATX3.0
- Ball
- Thermaltake Smart BX3 650W
- Fluid Dynamic
MTBF
- ASUS ROG Strix 1000W Gold ATX3.0
- 120000 hours
- Thermaltake Smart BX3 650W
- 100000 hours-17%
Modularity
- ASUS ROG Strix 1000W Gold ATX3.0
- Fully Modular
- Thermaltake Smart BX3 650W
- Non-Modular
Protections
- ASUS ROG Strix 1000W Gold ATX3.0
- OPP, OVP, UVP, SCP, OCP, OTP
- Thermaltake Smart BX3 650W
- OCP, OVP, OPP, OTP, SCP, UVP
Price
- ASUS ROG Strix 1000W Gold ATX3.0
- 189.99 USD
- Thermaltake Smart BX3 650W
- 74.99 USD
Warranty
- ASUS ROG Strix 1000W Gold ATX3.0
- 10 yearsBest
- Thermaltake Smart BX3 650W
- 5 years-50%
Which one should you pick?
Choose ASUS ROG Strix 1000W Gold ATX3.0 if you want the higher wattage (1000 W vs 650 W), the higher Hold-Up time (26.2 ms vs 17 ms) and the higher PCIe 8-pin connectors (4 vs 2).
Choose Thermaltake Smart BX3 650W if you already have it on hand or find it at a lower price.
Price comparison
| Retailer | ASUS ROG Strix 1000W Gold ATX3.0 | Thermaltake Smart BX3 650W |
|---|---|---|
| Consumercarts listing | $189.99 View on Consumercarts listing | |
| Amazon | $74.99 View on Amazon |
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
ASUS ROG Strix 1000W Gold ATX3.0
8.2 / 10 Expert Rating
ASUS extends the Strix Gold ATX3.0 line to 1000W here, keeping the Aura Sync-lit fan shroud and Axial-tech blades from the 850W model while adding headroom for a higher-end GPU.
Thermaltake Smart BX3 650W
7.3 / 10 Expert Rating
One of the most affordable routes to a native 12V-2x6 connector, at the cost of Gold-tier efficiency and acoustics.




