Neither option is reliably cheaper in every case. Best Buy’s US listings cover many different configurations, and a 2026 Tom’s Guide comparison found its selected prebuilt PCs slightly cheaper than comparable DIY builds when it checked. That result is a snapshot, not a rule for every budget or deal. To find the cheaper option for your needs, compare a specific desktop with a complete parts list that matches it as closely as possible.
What current examples show—and what they don’t
Best Buy’s US desktop listings, accessed in 2026, displayed systems at different prices and specifications. The following are observed listing prices, not guaranteed current offers; inventory, sellers, configurations and discounts can change.
| Best Buy listing example | Listed configuration | Observed price |
|---|---|---|
| CyberPowerPC desktop | Ryzen 7 8700F, RTX 5060 8GB, 16GB DDR5, 1TB SSD | $1,424.99 |
| iBUYPOWER Slate | Intel Core Ultra 5 225F, Intel Arc B570, 16GB DDR5, 1TB NVMe SSD | $1,199.99 |
| CyberPowerPC desktop | Ryzen 7 9800X3D, RTX 5070, 32GB DDR5, 2TB SSD | $2,299.99 |
These examples cannot establish whether buying or building is cheaper: each has different parts, and a fair DIY comparison would need a complete, closely matched bill of materials priced on the same day. Best Buy’s listings also include a broad assortment of models, so a conclusion about one configuration should not be applied to another. See Best Buy’s gaming desktop listings.
Tom’s Guide reported in its 2026 gaming PC comparison that the prebuilts it selected were slightly cheaper than comparable PCPartPicker builds at the time it checked. The publication attributed the direction in part to then-high RAM, SSD and GPU prices. That is a conclusion about its selected examples, not a market-wide statistic or a promise that a particular Best Buy deal beats DIY. Read Tom’s Guide’s gaming PC guide.
#1 Best Overall
- POWERHOUSE 8-CORE GAMING PERFORMANCE — Driven by the AMD Ryzen 7 8700F with 8 cores and 16 threads, boosting up to 5.0 GHz for smooth, responsive gameplay and the ability to handle AAA titles, streaming, and background tasks all at once
- NEXT-GEN BLACKWELL ARCHITECTURE — The NVIDIA GeForce RTX 5070 is powered by NVIDIA's cutting-edge Blackwell GPU architecture, delivering a massive generational leap in rasterization and ray tracing performance so you can experience your games the way they were meant to be played.
- Simplistic Design: Enjoy the latest generation of Windows 11 Home for your everyday needs. *MSI recommends Windows 11 Pro for business use.
- Cool While Gaming: In conjunction with an ARGB fan Air Cooler, the Codex R2 features four system cooling fans; three in the front and one in the rear to pull in cool air and push heat out of the PC.
- Turn on the Bright Lights: With the built-in RGB lighting, take your gaming experience to the next level by pressing the MSI LED button to cycle through lighting options. Customize lighting even further with MSI Center software.
How to compare a Best Buy deal with a DIY build
- Record the exact prebuilt configuration. Note the graphics card, processor, RAM capacity and type, and SSD capacity. Check the product details for the power supply, cooling, motherboard and case where those are disclosed.
- Make a complete DIY parts list. Match the core specifications as closely as practical, then include the motherboard, case, power supply, cooling and any operating-system license you need. Add peripherals only if they are needed to make both options usable on the same basis; do not compare a complete desktop with an incomplete parts list.
- Price both options on the same day. Include delivery and tax consistently, and confirm the specific listing, seller and configuration. Retail prices and availability can change.
- Decide what your cash comparison counts. State whether assembly time and troubleshooting effort are excluded. If you value your time or would need paid help, account for that separately rather than treating the parts total as the whole cost.
- Compare what the price buys. Consider your resolution and frame-rate target, component quality, warranty and support terms, included software, upgrade options, and how comfortable you are assembling and troubleshooting a PC.
What the price tag leaves out
Performance and parts
A graphics card with the same name is a useful starting point, but the full configuration still matters. Match the CPU, memory and storage as well, and check the other components when the seller discloses them. For gaming, decide on a resolution and frame-rate target before comparing prices; a cheaper configuration is not a better deal if it misses the performance you want.
Upgrade flexibility
Building gives you control over part selection and can make later component changes easier. Best Buy Canada’s 2024 PC Components Buying Guide puts the general tradeoff this way: “A pre-built PC often limits your ability to upgrade, but a custom-built system ensures flexibility.” Treat that as general guidance, not a verdict on every desktop. Inspect the exact model’s upgrade access, warranty terms and whether its parts are standard or proprietary. The guide is Canadian and is not evidence about US prices. Read Best Buy Canada’s PC Components Buying Guide.
Rank #2
- Legend perfected: Modern design with a matte basalt black finish in an optimized chassis with customizable AlienFX lighting zones, including the striking stadium lighting.
- Game changing graphics: Step into the future of gaming and creation with the NVIDIA GeForce RTX 5070 graphics, powered by NVIDIA Blackwell architecture.
- Marathon gaming unlocked: This high-performance technology ensures clean energy is consistently available, unleashing the top-level power of Intel Core Ultra 7 265F processor as you game, livestream, and multi-task for hours on end.
- Total command: Alienware Command Center software allows you to create and edit AlienFX lighting across the ecosystem, choose and monitor your performance mode across distinct power states, and create custom gaming profiles for your whole library.
- Dell Services: 1 Year Onsite Service provides support when and where you need it. Dell will come to your home, office, or location of choice, if an issue covered by Limited Hardware Warranty cannot be resolved remotely.
Convenience and support
A prebuilt arrives assembled, while a DIY build requires parts selection, assembly and setup. The value of the prebuilt’s convenience depends on how much you want to handle those tasks and on the specific system’s warranty and support terms. Best Buy describes an instructional build experience in which a tech covers components, demonstrates a build and shares assembly tips; the cited page does not establish local availability or terms. See Best Buy’s computer services page.
Quick Recap
Best Value
- CPU: AMD Ryzen7 5700X (up to 4.6GHz) 8-Core 16-Thread to easily handle multi-line tasks
- Main board: MSI B550M-A PRO motherboard provides reliable performance and stability
- GPU: Geforce RTX 5060 8GB GDDR7 Graphics Cards (Brand may vary) Support DLSS 4 multi frame generation, ray tracing, and Reflex 2 delay optimization
- RAM: 32GB DDR4 3200MHz (16GB*2) SSD: 1TB M.2 NVMe PCIe
- Power supply: 650W (80plus bronze) certified for energy efficiency and stable performance
Rank #4
- POWERED BY RTX 5070 12GB + RYZEN 7 9700X - The GeForce RTX 5070 12GB GDDR7 graphics card pairs with an 8-core AMD Ryzen 7 9700X processor to drive smooth 1440p and 4K gameplay, giving this gaming PC the headroom for modern titles, streaming, and creative work.
- 32GB DDR5 6000MHz MEMORY & 1TB NVMe SSD - 32GB of high-speed DDR5 memory and a 1TB PCIe 4.0 NVMe solid state drive deliver quick load times, smooth multitasking, and generous storage, keeping this prebuilt gaming desktop responsive under heavy workloads.
- BUILT-IN 11.3-INCH Smart DISPLAY - An integrated smart screen shows real-time CPU and GPU temperatures, usage, and weather while you play, adding a distinctive and functional touch to your battlestation.
- 850W 80+ GOLD POWER SUPPLY, 360MM LIQUID COOLING & WiFi 7 - An 850W 80 Plus Gold certified power supply provides stable, efficient power with headroom for future upgrades, while a 360mm AIO liquid cooler, WiFi 7, and an ARGB mid-tower case keep the Ryzen 7 CPU cool and connected in a clean build.
- READY TO PLAY OUT OF THE BOX - Arrives fully assembled and tested with Windows 11 Home pre-installed, so your prebuilt gaming computer is ready to set up in minutes. Assembled in the USA, and backed by a one-year limited warranty and lifetime free technical support.
Rank #3
- Processor specifications: Adopting AMD Ryzen 5 5600 processor, with a basic clock speed of 3.5GHz and a turbo frequency of 4.4GHz, it can achieve fast response computing performance
- Graphics Card: Features GeForce RTX 3050 graphics card with 6GB dedicated video memory for gaming and multimedia applications
- Memory configuration: Equipped with 32GB DDR4 RAM (16GB * 2), providing sufficient memory capacity for multitasking and demanding applications
- Gaming Performance: Designed to handle modern gaming titles and graphics-intensive tasks with smooth frame rates and visual quality
- Desktop System: Complete gaming desktop computer system ready for setup and use out of the box
Which option should you choose?
- Choose a prebuilt when a specific system meets your performance needs and its same-day price compares favorably with a complete, matched DIY basket—or when you prefer an assembled PC and the model’s support and warranty terms suit you.
- Choose DIY when you want control over the parts, value the flexibility to select components, and are comfortable with the time and work involved. Price the whole build before assuming it will cost less.
- Keep comparing when the prebuilt does not disclose enough component detail, the parts lists are not closely matched, or prices were checked on different days.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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