The KitchenAid KDFS324 324 Series is the top-rated built-in dishwasher under $800, delivering elite quietness at 39 dB with a stainless-steel tub and ergonomic racking.
A quiet, capable dishwasher under $800 used to mean settling for plastic tubs or noisy cycles. Today, models like the KitchenAid 324 Series hit 39 dB — quieter than many machines costing twice as much — while keeping a stainless tub and solid wash performance. The table below lays out the top-rated options in this price band, so you can pick the one that fits your kitchen and your listening tolerance.
What Makes A Dishwasher “Top-Rated” In 2026?
The best dishwashers under $800 share four non-negotiable features. First, a stainless-steel tub — plastic tubs stain and hold smells over time, and every top pick here uses metal. Second, noise below 45 dB; anything above that disrupts an open kitchen during a dinner party. Third, at least three cycles (Light, Normal, Heavy) plus an Energy Star label for long-term utility savings. Fourth, a sanitizing rinse option, which all listed models include. The Good Housekeeping Institute’s appliance tests confirm these thresholds as the baseline for a “top-rated” designation in the current market.
The Quietest Options: KitchenAid 324 vs. 424 Series
KitchenAid’s 324 Series (model KDFS324) sits at roughly $750–$799 and claims the title of quietest dishwasher in its price range at 39 dB — a level most reviewers describe as a faint hum you only hear standing directly beside it. The 424 Series (KDFS424) runs slightly more, around $800–$849, and operates at about 42–44 dB. That small noise increase buys noticeably better drying performance through a fan-assisted system and a deeper third rack for utensils and odd-shaped tools. If silence is your top priority, the 324 wins; if you load bulky items and want dishes dry without towel-dabbing, the 424 is worth the extra.
Best Values Under $700
When the budget sits firmly below $650, the Maytag MDB4949SKZ at $599 is the strongest choice. It delivers a stainless-steel tub, a sanitizing rinse, and Wi-Fi connectivity — features rare at that price point, per Reviewed.com’s budget dishwasher testing. Noise runs around 47 dB, which is audible but not intrusive, and the cleaning performance earns consistent top marks. The Samsung DW80CG4021SR at roughly $650 uses a WaterWall spray system that covers the full rack evenly, though some users report that the stainless tub is thinner than KitchenAid’s. The Whirlpool WDTA50SAKZ ($700) includes a full third rack and earned strong cleaning scores in Good Housekeeping’s evaluations, making it a solid middle option between the $599 Maytag and the $750 KitchenAid.
Bosch 500 Series: The Stretch Pick At $800
The Bosch 500 Series SHPM65Z55N normally lists between $800 and $1,000, but it regularly dips to $799 during sales at major retailers. At that sale price it becomes the consensus “best for most” machine, with PrecisionWash that adjusts spray pressure across the cycle and AutoAir drying that pops the door open at the end to vent steam. The trade-off: at full price it exceeds the $800 limit, so timing a sale matters. If you can wait for the discount, the Bosch 500 beats every strict-budget model on cleaning consistency and energy use; if you need a machine now, the KitchenAid 324 is the safer pick below the cap.
| Model | Approx. Price | Noise (dB) | Best For |
|---|---|---|---|
| KitchenAid KDFS324 | $750–$799 | 39 | Quietest under $800, solid all-around |
| KitchenAid KDFS424 | $800–$849 | 42–44 | Superior drying and third rack |
| Maytag MDB4949SKZ | $599 | 47 | Best strict-budget value, smart features |
| Samsung DW80CG4021SR | ~$650 | 46 | WaterWall spray coverage |
| Whirlpool WDTA50SAKZ | ~$700 | 47 | Third rack, strong cleaning marks |
| Bosch 500 SHPM65Z55N | $800 (sale) – $1,000 | 44 | Best overall if budget stretches |
Before you settle, take a moment to browse our complete dishwasher under 800 roundup for side-by-side comparisons and current pricing links across multiple retailers.
Common Mistakes When Buying Under $800
The most frequent error is ignoring the noise rating — a machine listed at $599 can hit 50 dB, which makes conversation in an open kitchen difficult. Another is assuming a plastic tub is fine; it isn’t. Plastic scratches, retains food odors, and limits the water temperature the machine can safely run. Every model on this list uses a stainless-steel tub for a reason. Lastly, some budget units rely on passive drying (just residual heat), meaning plastic items often come out wet. The KitchenAid 424 and Bosch 500 use fan-assisted or vented drying; if you run heavy loads of mixed dishes, prioritize those systems.
FAQs
Is the KitchenAid 324 Series actually quieter than a Bosch?
Yes, at 39 dB the KitchenAid KDFS324 is quieter than the Bosch 500 Series (44 dBA) and even most Bosch 800 Series models. You hear a soft water-movement sound rather than a motor hum, and it runs without disturbing nearby conversation or television.
Do any dishwashers under $800 come with a third rack?
Yes. The KitchenAid 424 Series includes a third rack for utensils and long tools, and the Bosch 500 Series (when on sale at $799) also offers a third rack. The KitchenAid 324 Series and the Maytag MDB4949SKZ do not have one, so budget accordingly if utensils are a priority.
Can I install these models myself, or do I need a pro?
All models listed are standard 24-inch built-in units that a capable DIYer can install if existing wiring and plumbing are in place. The basic steps are: level the feet, connect the water supply line, wire the electrical (or plug in), and secure the mounting brackets. Bosch and KitchenAid both provide detailed leveling and filter-cleaning instructions in their manuals.
References & Sources
- Good Housekeeping Institute. “Best Dishwasher Reviews (2026 Update)” Establishes selection criteria for noise, tub material, cycle counts, and Energy Star ratings.
- Reviewed.com (USA Today). “Best Affordable Dishwashers Under $700” Tested budget models including Maytag MDB4949SKZ and Bosch 500 Series pricing.
- Yale Appliance. “Best Dishwasher Deals 2026” Verified KitchenAid dB ratings and sub-$800 pricing for the 324 Series.
