Best Power Supplies · head-to-head

Seasonic Focus GX-850 (V4) vs EVGA SuperNOVA 1000 G7

A sourced, side-by-side comparison. Seasonic Focus GX-850 (V4) is cheaper at $149.99. Every spec and price links to its source.

Which is better: the Seasonic Focus GX-850 (V4) or EVGA SuperNOVA 1000 G7?

On the specs we track, they're closely matched. The Seasonic Focus GX-850 (V4) is the cheaper at $149.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec Seasonic Focus GX-850 (V4) EVGA SuperNOVA 1000 G7
US price $149.99 MSRP, black model $239.99 MSRP at launch
BrandSeasonicEVGA
Released2024-112022-06
Wattage (W) 850 1000
Efficiency rating 80plus_gold 80plus_gold
Modular full full
Atx version ATX 3.1 ATX 2.4
Pcie 5 12vhpwr Yes No
Fan size (mm) 135 120
Warranty years 10 10
Release year 2024 2022

Sources — Seasonic Focus GX-850 (V4): amazon.com (verified 2026-06-19). EVGA SuperNOVA 1000 G7: evga.com (verified 2026-06-19).

What's the difference between the Seasonic Focus GX-850 (V4) and EVGA SuperNOVA 1000 G7?

Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.

  • Wattage (W): Seasonic Focus GX-850 (V4) 850 vs EVGA SuperNOVA 1000 G7 1000
  • Atx version: Seasonic Focus GX-850 (V4) ATX 3.1 vs EVGA SuperNOVA 1000 G7 ATX 2.4
  • Pcie 5 12vhpwr: Seasonic Focus GX-850 (V4) true vs EVGA SuperNOVA 1000 G7 false
  • Fan size (mm): Seasonic Focus GX-850 (V4) 135 vs EVGA SuperNOVA 1000 G7 120

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

Seasonic Focus GX-850 (V4)

No sourced tester review yet.

EVGA SuperNOVA 1000 G7

One whitelisted lab review (Tom's Hardware, by Aris Mpitziopoulos) covers this exact model. Across its six-page bench test, the reviewer rates the 1000 G7 among the best 1000W units and the smallest 1000W ATX PSU, with high measured efficiency (Cybenetics Platinum, peaking above 92% at mid load), tight load regulation and excellent 12V transient response, but noisier at full load than the Corsair RM1000x. (1 sourced review, 1 lab-tested.)

Praised: Top-tier overall performance and high measured efficiency (Cybenetics Platinum), peaking above 92% at mid load; Smallest 1000W ATX PSU with compact 130mm depth and high build quality (Rubycon/Chemi-Con caps, FDB fan); Tight load regulation and excellent 12V transient response.

Flagged: Higher noise output than the Corsair RM1000x due to the small fan and overpopulated PCB (47.5 dB(A) at full load); High inrush currents at both tested input voltages; No PCIe 5.0 / ATX 3.0 (12+4 pin) connectors.

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