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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsThe Atari 800XL is a 1983 Atari 8-bit home computer and successor to the Atari 800. It came with 64 KiB of RAM and Atari BASIC built in; the Atari 800 was sold with different memory configurations and required a separate BASIC cartridge. The original 800 also has four controller ports and an internal speaker, while the 800XL has two controller ports. Both belong to the Atari 8-bit family, but compatibility with particular software and accessories is not guaranteed.
At a glance: Atari 800 vs. 800XL
| Feature | Atari 800 | Atari 800XL |
|---|---|---|
| Release | Original 400/800 design generation; the model FAQ records systems from 1979 onward. | Introduced in June 1983; shipped in small quantities in the United States late that year, with larger worldwide shipments in late winter or early spring 1984, according to Atarimania’s 800XL FAQ. |
| Standard memory | Varied by configuration and production period: 8 KiB (1979–80), 16 KiB (1980–82), or 48 KiB (1982–83); memory used plug-in modules, according to Atarimania’s Atari 800 FAQ. | 64 KiB RAM, according to Atarimania’s 800XL FAQ. |
| BASIC | Separate cartridge; the 800 used a CX801 10 KiB ROM personality module. | Atari BASIC built in, with an 8 KiB BASIC ROM. |
| Operating system | Original 400/800 design generation and ROM arrangement. | XL system design, with 14 KiB of operating-system ROM. |
| Controller ports | Four. | Two. |
| Other design detail | Internal speaker and plug-in internal CPU board. | Newer XL internal design. |
Atarimania’s 8-bit Atari hardware overview describes the 800’s four controller ports and the XL/XE family’s two, alongside differences in ROM layout and memory configuration.
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What changed when Atari introduced the 800XL?
More memory as the standard configuration
The 800XL’s 64 KiB of RAM gave buyers a consistent memory specification. The Atari 800, by contrast, appeared in several configurations over its production history, so the memory in an individual machine depended on its period and configuration. That variation matters when comparing a specific 800 with an 800XL or checking software requirements.
BASIC moved inside the computer
On the Atari 800, BASIC came on a separate cartridge. The 800XL includes Atari BASIC in its ROM, so no BASIC cartridge is needed to start using that language. The change is about how BASIC is supplied; it does not mean that the two computers have identical system software.
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Fewer controller ports, different internal design
The Atari 800 has four controller ports and an internal speaker. The 800XL has two controller ports and uses the later XL system design. If you plan to connect several controllers or use a peripheral made for a particular model, check its requirements rather than relying only on the shared Atari 8-bit name.
Are the Atari 800 and 800XL compatible?
Atari presented the 800XL as a successor that maintained compatibility with the earlier model, and both computers belong to the Atari 8-bit platform. That is a broad design aim, not a guarantee that every program or accessory will work unchanged. Software may depend on operating-system behavior, and hardware details can differ between model generations. Compatibility can also be affected by regional and revision differences: 800XL machines were made in NTSC, PAL, and SECAM configurations, and not every unit has identical video connections or ROM revisions, according to Atarimania.
- For software, check any model-specific requirements or known compatibility notes for the exact title.
- For peripherals, verify the connector and model support, especially if you need more than two controller ports.
- For a particular 800XL, confirm its regional video standard and revision before buying accessories or planning a display setup.
Which one should you choose?
Neither model is universally better; the useful choice depends on what you need from the computer and what configuration you can find.
Quick wins for a faster PC:
Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →- Choose an 800XL if you want 64 KiB of RAM as standard and built-in Atari BASIC, and two controller ports are sufficient.
- Consider an Atari 800 if its four controller ports or original design are important to your setup. Check the specific unit’s memory configuration and whether you have the BASIC cartridge you need.
- For either model, base the decision on the exact machine, software, and peripherals involved—not only on the family name or general compatibility claim.
The modern 800XL recreation is a different product
Atari currently lists a separate recreation under the name “THE 800XL.” Atari describes it as having 25 built-in games, a full-size mechanical keyboard, a working cartridge slot, HDMI output, and built-in Atari BASIC. Its official product page lists a planned price of $219.99, open pre-orders, and planned shipping in late April 2027; these are changeable product details and describe the recreation, not the 1983 computer. See Atari’s official 800XL recreation page for current information.
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- Officially licensed Atari titles. Titles include Asteroids, Centipede, Millipede, Breakout, Missile Command, Crystal Castles and many more. Game save options.
- Packed with over 200 built-in Atari games + bonus titles. Pac-Man & Galaga not included. Full Game list listed below.
- Includes Atari console, games instructions, 2 wireless joysticks, USB power cable, HDMI cable, and user manual. System connects directly to TV.
- Includes two 2.4 GHz wireless joysticks, inspired by the original Atari joysticks, include paddles for paddle games like Breakout, Warlords and many more.
- User Guide Languages: English, French, Spanish, Italian, Portuguese, German, Dutch, Japanese and Arabic. Dynamic RGB LED lights.
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