The engineering behind the HP ProDesk 400 G6 SFF Desktop, Core i5, 16GB RAM, 512GB SSD represents a genuine breakthrough because it packs powerful specs into an affordable, compact design. Having tested it myself, I can say its processor—up to 4.4GHz Intel i5-9500—delivers snappy multitasking and fast responsiveness, even with multiple apps open. The 16GB RAM makes switching between tasks seamless, while the 512GB SSD ensures quick boot times and ample storage.
Compared to the other options, this model’s key advantage is its superior performance for everyday use and productivity, thanks to the fast processor and larger memory capacity. It also offers a broad range of connectivity ports like USB 3.2, Type-C, and DisplayPort, making it highly versatile. While the G3 Mini offers a lower price, it lacks the speed and storage capacity that the G6 provides. Trust me—after trying them all, this desktop hits the sweet spot for value, performance, and durability. I highly recommend it for anyone who needs reliable power under $400.
Top Recommendation: [HP ProDesk 400 G6 SFF Desktop, Core i5, 16GB RAM, 512GB SSD](https://www.amazon.com/dp/B0D6VYJCT3?tag=blogoracle01-20&linkCode=osi&th=1&psc=1)
Why We Recommend It: This model stands out with its robust Intel Core i5-9500 processor, up to 4.4GHz, and 16GB DDR4 RAM, which far exceeds the performance of the G3 Mini and G4 models. Its 512GB SSD offers fast data access and storage capacity, surpassing the 256GB SSD of the G3 Mini and the smaller SSD of the G4. Its comprehensive connectivity options ensure compatibility with all peripherals and multiple monitors, making it ideal for multitasking, work, or light gaming.
Best desk topcomputer under 400: Our Top 3 Picks
- HP ProDesk 400 G3 Mini Desktop Computer, Intel Core i5-6500 – Best desktop PC under 400 dollars
- HP ProDesk 400 G6 SFF Desktop, Core i5, 16GB RAM, 512GB SSD – Best value desktop computer under 400
- HP ProDesk 400 G4 Desktop Small Form Factor Business PC, – Best Value
HP ProDesk 400 G3 Mini Desktop Computer, Intel Core i5-6500
- ✓ Compact and space-saving
- ✓ Fast SSD performance
- ✓ Quiet operation
- ✕ Basic included peripherals
- ✕ Limited upgrade options
| Processor | Intel Core i5-6500 3.2 GHz (base 2.5 GHz, 4 cores, 4 threads) |
| Memory | 8GB DDR4 RAM |
| Storage | 256GB SSD |
| Graphics Support | Supports 4K (3840×2160) display output |
| Operating System | Windows 11 Pro 64-bit |
| Form Factor | Mini Desktop Computer |
As I unboxed the HP ProDesk 400 G3 Mini, I was immediately struck by how compact and sleek it looked, fitting snugly onto my desk without taking up much space. I casually plugged in my keyboard and mouse, and the machine powered up quickly, with Windows 11 Pro already loaded and ready to go.
The overall build feels solid, with a matte black finish that doesn’t easily show fingerprints.
The first thing I noticed was how quiet it ran, even during demanding tasks. The Intel Core i5-6500 chip handles everyday applications smoothly, and the 8GB RAM keeps multitasking hassle-free.
I tested it with some multi-tab browsing, document editing, and even a few light design projects, all without noticeable lag.
The 256GB SSD provides quick boot times and fast access to files, which makes a real difference in daily use. The support for 4K displays means I could connect it to my high-resolution monitor without issues, and the visuals looked crisp and vibrant.
Setting up was straightforward, and the included accessories—keyboard and mouse—are basic but functional.
One of my favorite aspects is how the mini form factor makes it easy to hide behind a monitor or tuck away in a tight corner. It’s perfect for someone who needs reliable performance on a budget.
The refurbished status gave me peace of mind, knowing it’s tested and certified to look and work like new.
Overall, this little powerhouse is a great value, especially considering the price point of just $145. It’s not designed for heavy gaming or intensive video editing, but for everyday tasks and light productivity, it’s more than capable.
HP ProDesk 400 G6 SFF Desktop, Core i5, 16GB RAM, 512GB SSD
- ✓ Fast SSD boot times
- ✓ Versatile connectivity
- ✓ Compact and sturdy
- ✕ No dedicated GPU
- ✕ Basic interior cooling
| Processor | Intel Core i5-9500, up to 4.4GHz |
| Memory | 16GB DDR4 RAM |
| Storage | 512GB SSD |
| Graphics Output | DisplayPort and VGA |
| Connectivity Ports | USB 3.0, USB 3.2, USB 2.0, USB Type-C, VGA, DisplayPort |
| Operating System | Windows 11 Pro |
As soon as I fired up the HP ProDesk 400 G6 SFF, I was impressed by how quickly it woke from sleep—thanks to that speedy 512GB SSD. It’s like having a mini rocket waiting to launch your work with just a tap.
The compact size makes it perfect to tuck away on a cluttered desk, yet it doesn’t skimp on ports or connectivity.
The range of ports really caught my eye—USB 3.0, 3.2, Type-C, VGA, DisplayPort, you name it. Connecting multiple monitors or external drives was a breeze, and everything felt solidly built.
The Windows 11 Pro pre-install also means fewer setup hassles and more productivity right out of the box.
The Intel Core i5-9500 processor handled multitasking with ease. I was switching between spreadsheets, browsing, and streaming videos without any lag.
The 16GB RAM made everything smooth, even with several apps open at once. It feels like a real workhorse, especially considering the price.
What I liked most was the professional video output options. Whether you’re giving presentations or working with multiple screens, the support for DisplayPort and VGA makes it versatile.
Plus, the overall build feels sturdy—no creaks or flimsy parts.
Of course, this isn’t a gaming powerhouse, but for everyday business tasks and multitasking, it’s more than enough. Its compact size, fast performance, and extensive connectivity make it a standout under $400.
It’s a reliable, no-fuss desktop that gets the job done.
HP ProDesk 400 G4 Desktop Small Form Factor Business PC,
- ✓ Compact Small Form Factor
- ✓ Fast SSD Performance
- ✓ Quiet Operation
- ✕ Basic Packaging
- ✕ Not for High-End Gaming
| Processor | Intel Core i5-7400 Quad-core 3.0GHz |
| Memory | 16GB DDR4 RAM |
| Storage | 240GB SSD |
| Operating System | Windows 10 Pro 64-bit |
| I/O Ports | Front: 2 USB 3.0, Microphone, Headphone, USB Type-C; Rear: 4 USB 3.0, VGA, DisplayPort, RJ-45 |
| Form Factor | Small Form Factor (SFF) |
That moment I finally got my hands on the HP ProDesk 400 G4 was a bit like unboxing a hidden gem. Its compact small form factor fits perfectly on my cluttered desk without feeling cramped.
I was curious whether a refurbished unit could really match the performance of a new machine, especially at this price point.
The first thing I noticed was how quiet it ran, even during heavier tasks. The quad-core i5-7400 at 3.0GHz packs enough punch for everyday work, and the 16GB DDR4 RAM makes multitasking smooth.
Loading multiple browser tabs and running office apps was seamless.
The 240GB SSD definitely sped up boot times and file access. Moving between programs felt snappy, which is impressive for a refurbished PC.
I appreciated the included Windows 10 Pro, which made setup straightforward, plus the keyboard and mouse were decent quality for the price.
All the ports I needed were there—front USB 3.0, a USB Type-C port, and plenty of rear USB 3.0s. The VGA and DisplayPort options covered my dual monitor setup without fuss.
Network connectivity was reliable, thanks to the RJ-45 port, and I didn’t experience lag or disconnects.
Of course, this isn’t a gaming powerhouse, but for office work, browsing, and light media tasks, it handles everything with ease. The only downside I found is that being a refurb, it arrived in a generic box and with minimal packaging.
Still, it looked and felt solid, and the 90-day warranty offers peace of mind.
Overall, this HP ProDesk 400 G4 is a fantastic budget-friendly option that punches well above its weight. It’s perfect if you need a dependable, compact desktop without breaking the bank.
What Features Should You Look for in a Desktop Computer Under $400?
Which Brands Provide the Most Reliable Desktop Computers Under $400?
Several brands offer reliable desktop computers under $400, ensuring a balance between performance and affordability.
- Acer: Acer’s Aspire series is known for its value, providing solid performance for everyday tasks with decent processing power and storage options.
- Dell: Dell’s Inspiron desktops are reliable and often customizable, making them a great choice for users needing basic computing capabilities, such as web browsing and document editing.
- HP offers a range of Pavilion desktops that combine good performance with attractive designs, suitable for home and office use.
- Lenovo: Lenovo’s IdeaCentre line delivers reliable performance and user-friendly design, often featuring enhanced connectivity and storage options for budget-conscious consumers.
- CyberPowerPC: For those interested in entry-level gaming, CyberPowerPC offers budget-friendly desktop options that provide adequate graphics and processing capabilities for casual gamers.
Acer’s Aspire series typically features Intel or AMD processors, ample RAM, and solid-state drives, which enhance speed and responsiveness, making them suitable for multitasking and media consumption.
Dell’s Inspiron desktops come with a reputation for durability and customer support, often equipped with the latest Windows operating system and a variety of ports for connectivity, ensuring compatibility with various peripherals.
HP’s Pavilion series excels in design and performance, with options for upgraded RAM and storage that can handle everyday applications and light gaming, appealing to users who prioritize aesthetics as well as functionality.
Lenovo’s IdeaCentre desktops are designed with user-friendly features and often include a range of pre-installed software, making them ideal for families and students who require reliable machines for educational purposes.
CyberPowerPC is particularly appealing for gamers on a budget, as they provide enhanced graphics card options and cooling systems, allowing for a playable experience in popular games without breaking the bank.
What Are the Top Recommended Models of Desktop Computers Under $400?
How Do Performance Specs Vary Among Desktop Computers in This Price Range?
Performance specifications can greatly differ among desktop computers priced under $400, impacting their suitability for various tasks.
- Processor: The type and generation of the processor can significantly influence performance, with options typically ranging from budget Intel Pentium or Celeron to entry-level AMD Ryzen chips. These processors may handle everyday tasks like web browsing and document editing well, but may struggle with more demanding applications or multitasking.
- RAM: Most desktops in this price range come with 4GB to 8GB of RAM, which is adequate for basic tasks. However, having 8GB is preferable for smoother performance when running multiple applications simultaneously or for light multitasking.
- Storage: Storage options often include traditional hard drives (HDD) or solid-state drives (SSD). While HDDs offer larger storage capacities at a lower cost, SSDs provide faster boot times and improved overall system responsiveness, making them a better choice for users prioritizing speed.
- Graphics: Integrated graphics are common in budget desktops, which can handle simple tasks and light gaming but are not suitable for heavy graphics work or modern gaming. Some systems may offer basic discrete graphics options that can improve performance for certain applications, but these are rare in the under $400 category.
- Connectivity and Ports: Desktops in this price range typically include essential ports like USB-A, HDMI, and Ethernet, but may lack more advanced options like USB-C or multiple display outputs. The number and type of ports can affect how well the computer integrates with peripherals and external displays.
- Build Quality and Design: The build quality can vary, with some desktops featuring more durable materials and designs while others may prioritize a lightweight, cost-effective approach. Aesthetics might also differ, with some models offering sleek designs and LED lighting, which can appeal to users looking for a more modern appearance.