be quiet! Straight Power 12 1000W vs Lian Li SP850 850W SFX 80+ Gold (2026): Which Is Better?

Winner

Check price with retailer

Rating4.7 / 5.0

be quiet! Straight Power 12 1000W is a power supply pick for 80 Plus Platinum.

Components Opponents treats this as more than a spec-sheet entry: we cross-check the product against Cybenetics and 80 PLUS efficiency-class references, ATX 3.x, PCIe 5.x, and native 12VHPWR/12V-2x6 cable support, Warranty length, platform reputation, and protections coverage, and current retailer/owner feedback before placing it in comparisons. The goal is to separate parts that merely look strong on paper from parts that make sense inside a real build.

For this review, the important checkpoints are efficiency, transient response, cable quality, acoustic behavior, protections, and upgrade headroom. The headline spec is 1000W, but the buying decision also depends on native GPU cable support, case depth, warranty length, and connector count. That is why the recommendation is framed around build fit rather than a single benchmark number.

Best fit: 80 Plus Platinum.

What to verify before buying: ATX 3.0 support. Also confirm dimensions, firmware/platform support, warranty terms, and seller return policy for the exact model you add to cart.

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Lian Li SP850 850W SFX 80+ Gold

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Rating4.5 / 5.0

Lian Li SP850 850W SFX 80+ Gold is a PSU pick for white-themed SFF builds.

Components Opponents treats this as more than a spec-sheet entry: we cross-check the product against Manufacturer specifications and certification listings, Independent PSU testing from Cybenetics and established review outlets, Connector documentation and ATX 3.x compliance verification, and verified-owner feedback about noise and cables before placing it in comparisons. The goal is to separate parts that merely look strong on paper from parts that make sense inside a real build.

For this review, the important checkpoints are wattage headroom, transient-spike handling, efficiency curve, fan noise, cable modularity, and warranty length. The headline spec is 850W SFX, 80+ Gold, white, but the buying decision also depends on GPU connector needs, case clearance, future upgrade plans, and per-rail OCP behavior. That is why the recommendation is framed around build fit rather than a single benchmark number.

Best fit: white-themed SFF builds.

What to verify before buying: One of few white SFX PSUs — perfect for all-white ITX. Also confirm dimensions, connector compatibility, warranty terms, and seller return policy for the exact model you add to cart.

Check price on Amazon

Value Comparison

How they compare across key dimensions

be quiet! Straight Lian Li SP850

be quiet! Straight Power 12 1000W is stronger at

Efficiency

Lian Li SP850 850W SFX 80+ Gold is stronger at

Silence, Warranty

Very close

Reliability, Modularity, Value

By how much

WarrantyLian Li SP850 850W SFX 80+ Gold leads by 10

SilenceLian Li SP850 850W SFX 80+ Gold leads by 9

Efficiencybe quiet! Straight Power 12 1000W leads by 4

ValueVery close

ReliabilityVery close

ModularityVery close

Pros & Cons

be quiet! Straight Power 12 1000W

Pros

Strong fit for 80 Plus Platinum
Clear published specification target: 1000W
Cross-checked against respected power supply specification and benchmark references
Easy to compare against same-category alternatives by price, role, and build constraints
Useful for buyers who want a practical recommendation rather than a single synthetic score
Amazon search link makes it easier to compare current sellers and variants before checkout

Cons

Exact performance and acoustics vary by workload, firmware, drivers, cooling, and case airflow
Compatibility depends on the rest of the build and should be checked before purchase
Pricing, bundles, and seller availability can change quickly on Amazon
The best value can shift when nearby alternatives go on sale
Requires checking native GPU cable support, case depth, warranty length, and connector count

Lian Li SP850 850W SFX 80+ Gold

Pros

Strong fit for white-themed SFF builds
Clear published specification target: 850W SFX, 80+ Gold, white
Cross-checked against respected specification and benchmark references
Easy to compare against same-category alternatives by price, role, and build constraints
Useful for buyers who want a practical recommendation rather than a single synthetic score
Amazon direct link makes it easier to compare current sellers and variants before checkout

Cons

Leave wattage headroom for transient GPU spikes and future upgrades
Use only the modular cables supplied with the exact PSU model
Pricing, bundles, and seller availability can change quickly on Amazon
The best value can shift when nearby alternatives go on sale
Fan noise varies by load and ambient temperature

Specs

be quiet! Straight Power 12 1000W

Price: Check price with retailer
Rating: 4.7 / 5.0
Key Features: 1000W
80 Plus Platinum
ATX 3.0 support
Category: PSUs
Primary Fit: 80 Plus Platinum
Key Specs: 1000W
Build Note: ATX 3.0 support
Compatibility Reminder: Verify fit with your exact motherboard, case, PSU, cooling, and firmware before buying.
Wattage: Not specified
Rating: Not specified
Modular: Not specified

Lian Li SP850 850W SFX 80+ Gold

Price: Check price with retailer
Rating: 4.5 / 5.0
Key Features: 850W, 80+ Gold
SFX form factor
fully modular, white option
Category: PSUs
Primary Fit: white-themed SFF builds
Key Specs: 850W SFX, 80+ Gold, white
Build Note: One of few white SFX PSUs — perfect for all-white ITX
Compatibility Reminder: Not specified
Wattage: 850W
Rating: 80+ Gold
Modular: Fully Modular

Feature	be quiet! Straight Power 12 1000W	Lian Li SP850 850W SFX 80+ Gold
Price	Check price with retailer	Check price with retailer
Rating	4.7 / 5.0	4.5 / 5.0
Key Features	1000W 80 Plus Platinum ATX 3.0 support	850W, 80+ Gold SFX form factor fully modular, white option
Detailed Specifications
Category	PSUs	PSUs
Primary Fit	80 Plus Platinum	white-themed SFF builds
Key Specs	1000W	850W SFX, 80+ Gold, white
Build Note	ATX 3.0 support	One of few white SFX PSUs — perfect for all-white ITX
Compatibility Reminder	Verify fit with your exact motherboard, case, PSU, cooling, and firmware before buying.	Not specified
Wattage	Not specified	850W
Rating	Not specified	80+ Gold
Modular	Not specified	Fully Modular

Recommendations

Quick TakeChoosing between the be quiet! Straight Power 12 1000W and the Lian Li SP850 850W SFX 80+ Gold comes down to workload, compatibility, thermals, power needs, and price. We compare them using wattage specifications, efficiency certifications, connector documentation, and verified-owner acoustic feedback, not guaranteed-performance claims.▾

Who Should Pick the be quiet! Straight Power 12 1000W?The be quiet! Straight Power 12 1000W is the better starting point if you want 1000W, 80 Plus Platinum, ATX 3.0 support. Its clearest advantage is Strong fit for 80 Plus Platinum.▾

Who Should Pick the Lian Li SP850 850W SFX 80+ Gold?The Lian Li SP850 850W SFX 80+ Gold makes more sense if its priorities fit your current build: 850W, 80+ Gold, SFX form factor, fully modular, white option. Its best case is Strong fit for white-themed SFF builds.▾

Specification Fit and Build UseFor psus, specification fit matters more than hype. The be quiet! Straight Power 12 1000W leans on 80 Plus Platinum, while the Lian Li SP850 850W SFX 80+ Gold leans on SFX form factor.▾

Purchase ChecklistCompare current merchant listings for the be quiet! Straight Power 12 1000W and Lian Li SP850 850W SFX 80+ Gold; displayed catalog values are not current offers. Confirm seller, warranty, shipping, and return terms before purchasing.▾

VerdictPick the be quiet! Straight Power 12 1000W if you want the stronger research score and its specification profile fits your build. Compare current merchant listings before deciding.▾

Frequently asked questions

Is the be quiet! Straight Power 12 1000W better than the Lian Li SP850 850W SFX 80+ Gold?▾

Both are excellent picks in the PSUs category. Based on user ratings, the be quiet! Straight Power 12 1000W narrowly edges ahead with a 4.7/5 score. Your best choice depends on which features matter most to you.

How do the catalog estimates for the be quiet! Straight Power 12 1000W and Lian Li SP850 850W SFX 80+ Gold compare?▾

Catalog estimates are planning references, not current merchant offers. Check the linked seller pages for current prices and availability.

Where can I buy the be quiet! Straight Power 12 1000W or Lian Li SP850 850W SFX 80+ Gold?▾

Both products are available on Amazon. Use our affiliate links to check the latest prices and current availability.

Winner

Verdict

be quiet! Straight Power 12 1000W

be quiet! Straight Power 12 1000W be quiet! Straight Power 12 1000W has the rating edge. Choose based on performance tier, power, platform fit, and current merchant terms.

Price

Confirm current prices with each retailer.

Top Rated

be quiet! Straight Power 12 1000W: 4.7 / 5.0

How they compare across key dimensions

Pros & Cons

be quiet! Straight Power 12 1000W

Pros

Cons

Lian Li SP850 850W SFX 80+ Gold

Pros

Cons

Specs

be quiet! Straight Power 12 1000W

Lian Li SP850 850W SFX 80+ Gold

Recommendations

Frequently asked questions

be quiet! Straight Power 12 1000W

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