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The Core i7-7700K itself only needs a modest amount of power — it’s your graphics card, not the CPU, that decides how big a power supply you actually need. A 650W 80+ Gold unit comfortably covers a 7700K paired with anything up to a mid-range current GPU, and 750W gives headroom for a higher-end card or future upgrade without overspending on capacity you’ll never use. Every unit below is fully modular and 80+ Gold or better, so you’re not paying for a mystery-brand PSU that skimps on protection circuitry.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Corsair RM750x | $110-$135 | Amazon · eBay |
| 2 | Corsair RM750e | $85-$105 | Amazon · eBay |
| 3 | Seasonic Focus GX-750 | $105-$125 | Amazon · eBay |
| 4 | EVGA SuperNOVA 750 G6 | $140-$150 | Amazon |
| 5 | be quiet! Straight Power 12 750W | $139-$160 | Amazon · eBay |
| 6 | be quiet! Pure Power 12 M 750W | $99-$150 depending on retailer | Amazon · eBay |
| 7 | MSI MAG A750GL PCIE5 | $85-$95 | Amazon · eBay |
| 8 | ASUS TUF Gaming 750W Gold | ~$130 (varies with sales) | Amazon · eBay |
| 9 | NZXT C750 Gold | $110-$140 depending on sale pricing | Amazon · eBay |
| 10 | Cooler Master MWE Gold V2 750W | $70-$96 | Amazon · eBay |
The picks, in detail
Corsair RM750x
Corsair’s long-running mainstream Gold PSU, now in its current ATX 3.1/PCIe 5.1-compliant revision — a safe, well-reviewed default pick for a 7700K build.
- 750W, 80+ Gold certified
- Fully modular cables
- Zero-RPM fan mode at low loads
- 105°C-rated Japanese capacitors
- 10-year warranty
- One of the most widely reviewed and recommended PSUs in this class
- Long 10-year warranty backed by a major brand
- Not the cheapest 750W Gold unit on this list
- More capacity than a 7700K + mid-range GPU strictly needs
Corsair RM750e
The budget-tier sibling to the RM750x above, trimming a few premium touches to hit a lower price while keeping the same Gold efficiency and fully modular design.
- 750W, 80+ Gold certified
- Fully modular
- 105°C-rated capacitors
- Modern Standby support
- 10-year warranty
- Noticeably cheaper than the RM750x while sharing the same core Gold-efficiency engineering
- Same 10-year warranty as Corsair’s premium RM-x line
- Less refined cable sleeving and finish than the RM750x
- Fewer premium touches like a fanless low-load mode on some revisions
Seasonic Focus GX-750
Seasonic builds PSUs for several other brands on this list under contract, and the Focus GX-750 is their own-branded version of that same engineering at a competitive price.
- 750W, 80+ Gold certified
- Fully modular
- Fanless mode at low loads
- Premium Japanese capacitors
- 10-year warranty
- Seasonic’s OEM reputation without paying a third-party brand markup
- Consistently rated among the quieter units in this class
- Compact case size means a slightly denser cable bundle than some competitors
- Availability varies by retailer
EVGA SuperNOVA 750 G6
EVGA’s current G6-series Gold unit, a compact 140mm-deep design that’s an easy fit even in smaller mid-tower cases housing a 7700K build.
- 750W, 80+ Gold certified
- Fully modular
- Eco Mode fanless operation with FDB fan
- Compact 140mm chassis depth
- 10-year warranty
- Includes a Power ON self-tester
- Compact size is a real advantage in smaller cases
- Includes a standalone self-test tool most competitors don’t
- Typically priced a bit above the Seasonic and XPG units here
- Slightly less common in North American retail than Corsair or EVGA’s own older G3/G5 lines
be quiet! Straight Power 12 750W
be quiet!’s premium 80+ Platinum-rated unit, for a 7700K build where near-silent operation and top-tier efficiency matter more than shaving a few dollars off the price.
- 750W, 80+ Platinum certified
- Fully modular, ATX 3.0 with a native 12VHPWR connector
- Japanese 105°C capacitors
- Very low fan-noise rating
- 10-year warranty
- Platinum efficiency beats every Gold-rated unit on this list
- be quiet!’s fans are consistently rated among the quietest in independent reviews
- The most expensive unit in this roundup
- Platinum efficiency is overkill if electricity cost isn’t a priority
be quiet! Pure Power 12 M 750W
The value-tier sibling to the Straight Power 12 — same brand’s quiet-fan engineering, dialed back to Gold efficiency at a lower price.
- 750W, 80+ Gold certified
- Fully modular
- ATX 3.1/PCIe 5.1 support
- Silent 120mm fan
- 10-year warranty
- Brings be quiet!’s quiet-operation reputation to a lower price point than the Straight Power line
- Full ATX 3.1/PCIe 5.1 spec despite the lower price
- Gold, not Platinum, efficiency — the Straight Power 12 above is the step-up if efficiency matters more
- Newer product line with a shorter retail track record than Corsair or Seasonic
MSI MAG A750GL PCIE5
MSI’s compact Gold-certified unit with a native dual-color 12V-2×6 GPU cable, a solid budget pick if you’re also buying an MSI motherboard or case for the same build.
- 750W, 80+ Gold certified
- Fully modular
- ATX 3.1/PCIe 5.1 ready with native 12V-2×6 cable
- Compact chassis size
- 10-year warranty
- Among the cheapest Gold-certified, fully modular 750W units from a major motherboard brand
- Native modern GPU power connector avoids needing an adapter
- MSI’s PSU line has less independent long-term reliability data than Corsair or Seasonic
- Fewer premium acoustic features than the be quiet! or Seasonic options
ASUS TUF Gaming 750W Gold
ASUS’s military-grade-component Gold unit, a natural pairing if the rest of your build is already TUF Gaming-branded.
- 750W, 80+ Gold certified
- Fully modular
- ATX 3.0 compatible
- Military-grade components, dual ball bearing axial-tech fan
- 10-year warranty
- Matches ASUS TUF Gaming aesthetic for a themed build
- Military-grade component spec is a genuine durability-focused design choice, not just marketing language
- Historically priced a bit above the MSI and Corsair RM750e budget-tier units for similar core specs
- Availability has been inconsistent directly through ASUS’s own store
NZXT C750 Gold
NZXT’s own-branded 750W Gold unit, a straightforward fit for anyone already buying an NZXT case or cooler for the same build.
- 750W, 80+ Gold certified
- Fully modular
- Hybrid silent fan control
- Fluid dynamic bearing fan
- 10-year warranty
- Matches NZXT’s white or black case color schemes if that matters to your build
- Competitive pricing against Corsair and EVGA in the same tier
- NZXT PSUs see less independent teardown/review coverage than Corsair or Seasonic
- Sleeved cable set is less flexible than some premium competitors
Cooler Master MWE Gold V2 750W
One of the cheapest fully-modular 750W Gold units from a recognized brand, a sensible pick if the build’s budget is going toward the GPU instead of the PSU.
- 750W, 80+ Gold certified
- Fully modular
- Semi-fanless low-noise design
- Dual EPS connectors
- 5-year warranty
- Consistently the lowest price of any Gold-certified unit in this roundup
- Semi-fanless mode keeps idle noise low despite the budget price
- 5-year warranty is shorter than the 10-year terms most competitors here offer
- Fewer premium touches (cable sleeving, self-test button) than the pricier options
Buying tips
- The 7700K itself draws well under 100W even overclocked — your GPU choice, not the CPU, should drive whether you pick 650W or 750W.
- Stick to 80+ Gold certification or better; the efficiency difference over a Bronze unit adds up in heat and noise, not just electricity cost.
- Fully modular cabling makes a real difference in airflow and cable management in smaller cases — worth the small price premium over a non-modular unit if your case is tight.
- A 10-year warranty (Corsair, Seasonic, EVGA, be quiet!, MSI, ASUS, NZXT) is standard at this tier; treat a PSU with a noticeably shorter warranty as a signal to check independent reviews before buying.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.