Garden 
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This comparison is decided by two things that have nothing to do with the machines: where you can buy each brand, and what flow rate each one gives you. Ryobi is a Home Depot exclusive in North America, so support, spares and warranty all run through one retailer and there is comparatively little independent owner-review data to weigh. Greenworks sells openly and cheaply, but the bulk of its electric range runs 1.1 to 1.2 gallons per minute against a market norm of 1.76 — and flow rate, not pressure, is what determines how fast a surface actually gets clean.
Get those two facts straight and the choice more or less makes itself.
The Distribution Difference, and Why It Matters
Ryobi belongs to Techtronic Industries and is sold in North America through The Home Depot alone. That has three consequences worth pricing in before you buy.
- Less comparable evidence. Open-channel brands accumulate owner ratings across many retailers and marketplaces. A single-retailer brand does not, which makes cross-brand comparison genuinely harder — including for us.
- Fewer third-party spares. Hoses, guns and quick-connects for the open-channel brands are commodity items. Ryobi-specific parts are not.
- Single-channel service. Convenient if you have a Home Depot nearby, less so if you do not.
None of this makes Ryobi a bad machine — reviewers at Home Depot rate the line well, and the fit and finish is generally a step above Greenworks. It is a trade-off, not a flaw. Because we can only publish verified rating data for products we can check against live listing data, the ranked cards below cover the Greenworks side; the Ryobi assessment is drawn from published specifications, the public recall record and the retailer's own review corpus.
Top Picks at a Glance
Where the Two Ranges Actually Sit
| Ryobi | Greenworks | |
|---|---|---|
| Where to buy | The Home Depot, exclusively | Open channel — marketplaces and retail |
| Typical electric flow rate | 1.2–1.4 GPM | 1.1–2.0 GPM depending on model |
| Entry price | ~$130 | ~$110 |
| Cordless option | Yes, on the 18V and 40V platforms | Limited |
| Gas models | Yes | No |
| Certified performance figures | Not consistently published | PWMA certification on selected models |
| Build and finish | Generally the better-finished product | Functional, more plastic |
| Recall history | ~764,000 units, August 2025 (remedied) | No comparable recall in the current range |
The Flow Rate Problem Nobody Puts on the Box
Cleaning speed is PSI multiplied by GPM — pressure loosens dirt, water volume carries it away. Manufacturers multiply the two out as "cleaning units", and it is the only figure that compares machines honestly. Run the numbers on this matchup and the picture changes:
| Machine | PSI | GPM | Cleaning units |
|---|---|---|---|
| Greenworks 1600 | 1600 | 1.2 | ~1,920 |
| Greenworks 1800 (PWMA) | 1800 | 1.1 | ~1,980 |
| Greenworks 2100 | 2100 | 1.2 | ~2,520 |
| Typical 1.76 GPM competitor at 2300 PSI | 2300 | 1.76 | ~4,050 |
| Greenworks 3000 brushless | 3000 | 2.0 | ~6,000 |
That fourth row is the honest context this comparison needs. A mainstream 2300 PSI machine at 1.76 GPM produces about 60% more real cleaning throughput than the Greenworks 2100, despite a PSI badge only 10% higher. If your jobs are cars, garden furniture and a fence, none of that matters. If you have a driveway, it is the difference between an afternoon and a morning, and it is the strongest argument for stepping up to the brushless 2.0 GPM model or looking outside both brands entirely — see the electric rankings for the wider field.
The 2025 Ryobi Recall
Anyone comparing these two brands should know this, and it is rarely mentioned in a versus article. On 28 August 2025 the Consumer Product Safety Commission announced a recall of approximately 764,000 Ryobi brushless electric pressure washers — models RY142300, RY142300VNM and RY142711VNM — because the capacitor could overheat and burst, forcefully ejecting parts. The CPSC notice records 135 reports of overheating capacitors, including 41 explosions, and 32 injuries or fractures to fingers, hands, face and eyes.
TTI provided a free repair kit consisting of a replacement capacitor, available through ryobitools.com/recall. We do not treat a properly handled recall as evidence a brand is bad; identifying a defect and remedying it at no cost is the system working. But if you are buying a used Ryobi, or you already own one of those model numbers, check it before you plug it in. And note that this is a fair reason to prefer open-channel brands generally: recall information reaches you more reliably when a product has a broad public review record.
The Greenworks Range, Ranked
Best for the household job list — cars, decks, patio furniture, fences
- 2100 PSI at 1.2 GPM
- Upright chassis with onboard hose and cord storage
- Quick-connect nozzles and soap application
- Integral GFCI on the power cord
Why buy it: the sweet spot of the Greenworks range, and the model whose ratings hold up best — but note the 1.2 GPM flow, which is where Greenworks consistently trails the wider market.
Best for a light-duty first machine, or an apartment balcony and a car
- 1600 PSI at 1.2 GPM — light duty by design
- Compact body, easy to carry and store
- 25-foot high-pressure hose
- Two quick-connect nozzles plus soap applicator
Why buy it: the most-owned Greenworks washer and the honest entry point, provided you understand it is a car-and-furniture machine rather than a driveway one.
Best for concrete, long driveways and anyone wanting gas-adjacent output without an engine
- 3000 PSI at up to 2.0 GPM — roughly 6,000 cleaning units
- Brushless motor with no carbon brushes to wear
- Steel-framed cart with pneumatic wheels
- Draws a full 15-amp circuit
Why buy it: the only Greenworks that competes on flow rate rather than pressure alone, and therefore the only one that genuinely changes how long a driveway takes.
Best for buyers who want a measured performance rating rather than a marketing maximum
- PWMA-certified performance rating
- 1800 PSI at 1.1 GPM
- Compact upright body
- Quick-connect nozzle set
Why buy it: the certification is the point — a PWMA-rated 1800 PSI is measured to an industry protocol, which makes it directly comparable in a way an uncertified "max PSI" never is.
Quick Comparison
| Product | Best for | Rating | Price | Buy |
|---|---|---|---|---|
| Greenworks 2100 PSI (1.2 GPM) Electric Pressure Washer | Best Overall Greenworks | — | Check (paid link) | |
| Greenworks 1600 PSI (1.2 GPM) Electric Pressure Washer | Best Value | — | Check (paid link) | |
| Greenworks 3000 PSI (2.0 GPM Max) Brushless Electric Pressure Washer | Best Premium Greenworks | — | Check (paid link) | |
| Greenworks 1800 PSI (1.1 GPM) Electric Pressure Washer, PWMA Certified | Best PWMA-Rated Compact | — | Check (paid link) |
One Point in Greenworks' Favour: PWMA Certification
Most pressure washer PSI figures are "max PSI" measured at unloader bypass — the pressure in the system at the instant the trigger is released, not the pressure you clean with. Certified figures, whether through the Pressure Washer Manufacturers' Association or the Cleaning Equipment Trade Association, are measured to a published test protocol instead.
Greenworks carries PWMA certification on selected models, and this is worth more than it looks. A certified 1800 PSI is a real, comparable number; an uncertified 2300 PSI may not be. When you see certification on one machine and a bare "max" on another, the gap between them is smaller than the badges suggest — sometimes considerably.
How We Rank
We never buy, run or dismantle these machines. Assessments are built from aggregated owner ratings across each brand's most-owned models, weighted toward reviews written after a season or more of ownership, and cross-checked against published specifications, certification status and the public CPSC recall record. Where a brand sells through a single retailer we say so and describe how that limits the evidence available, rather than implying an equivalence we cannot support. Prices were checked at the time of writing. Full method: how we rank.
The Verdict
Buy Ryobi if you shop at Home Depot, want the better-finished machine, or want a cordless model for a small yard — and check the recall list first. Buy Greenworks if you want the cheaper entry, wider availability and a certified performance figure you can actually compare.
But the more useful answer is this: both brands' entry-level machines are limited by a 1.1–1.2 GPM flow rate, and if you have concrete to clean, the money is better spent on flow than on either badge. The Greenworks 3000 brushless (paid link) at 2.0 GPM is the one machine here that solves that, and the wider electric field has several more at lower prices.
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