M64 AV Adapter vs HDMI Converter: Which Is Better for Your Retro Setup?
By ModRetro | Published: 2026-08-24
Category: Comparisons
Compare the M64 AV Adapter and HDMI converters for your retro console. Learn about video quality, ease of use, and compatibility to pick the right option.
When you finally get your hands on an M64 console, one of the first questions that pops up is: how do I connect it to my modern TV? The M64 natively outputs composite video, which looks dated on today's high-definition displays. You have two main paths: use the official M64 AV Adapter or pick an HDMI converter. Both promise to bridge the gap between retro hardware and modern screens, but they work in very different ways.

In this comparison, we'll break down the key differences between the M64 AV Adapter and HDMI converters, covering video quality, ease of setup, input lag, and overall value. By the end, you'll know exactly which option fits your gaming setup and budget.
Understanding the M64 AV Adapter
The M64 AV Adapter is a straightforward solution designed specifically for the M64 console. It plugs directly into the console's AV out port and provides composite video and stereo audio outputs, which you can connect to your TV using standard RCA cables. This adapter is compact, requires no external power, and is essentially a plug-and-play accessory.
Because it's purpose-built for the M64, the adapter ensures a reliable connection with no compatibility issues. It's ideal if you have a TV that still has composite inputs, or if you're using a separate upscaler or capture card. The adapter itself doesn't improve the video signal—it simply passes through the native composite output, so the image quality is exactly what the console produces.
- Plug-and-play: no external power or setup required.
- Preserves the original composite video signal for authenticity.
- Works with any TV or capture device that accepts composite input.
How HDMI Converters Work
HDMI converters, on the other hand, take the console's AV signal and upscale it to HDMI resolution, typically 720p or 1080p. These devices come in various forms—some are small dongles that plug directly into the console, while others are boxes with separate cables. They often include additional features like smoothing filters, aspect ratio correction, and even scanline generation to mimic CRT displays.
The main advantage of an HDMI converter is that it allows you to connect your M64 to modern TVs that lack composite inputs. Many converters also reduce the blurriness associated with composite on HDTVs, giving you a sharper image. However, the quality varies widely between models; cheap converters can introduce input lag or produce poor colors, while higher-end ones can look fantastic.
- Upscales to HD resolutions for compatibility with modern TVs.
- May offer additional video processing options like smoothing and scanlines.
- Quality varies significantly by price and brand.
Video Quality Comparison
When it comes to video quality, the M64 AV Adapter delivers the raw composite signal. On a modern TV, this often results in a soft, slightly blurry image with color bleeding, which some purists actually prefer for its nostalgic feel. If you're using a CRT or a good upscaler, the composite signal can look surprisingly decent.
HDMI converters, especially those with line-doubling or deinterlacing, can produce a much sharper image. However, they can also introduce artifacts or oversharpening if not well-implemented. For the best balance, look for a converter that supports 480p output and has good reviews from the retro community. In our experience, a quality HDMI converter like those recommended for the M64 can make games like Extreme-G: Turbo Fusion look cleaner and more vibrant on a 4K TV.

- AV Adapter: authentic composite look, soft and nostalgic.
- HDMI Converter: sharper image, but quality depends on the device.
- For best results, pair an AV Adapter with a high-quality external upscaler.
Ease of Setup and Use
The M64 AV Adapter is the epitome of simplicity: plug it into the console, connect RCA cables to your TV, and you're done. No menus, no configuration, no extra power cables. It just works. This makes it a great choice for beginners or anyone who wants a no-fuss setup.
HDMI converters can be slightly more involved. Many require external power via USB, and some have switches or menus to adjust settings. The setup is still relatively quick, but you'll need to ensure the converter is compatible with your specific console revision. Some converters also need to be plugged in a certain way to avoid signal loss. If you're not tech-savvy, the AV Adapter is the safer bet.
- AV Adapter: zero learning curve, perfect for plug-and-play.
- HDMI converter: might require power and configuration, but still manageable.
Input Lag and Performance
Input lag is a critical factor for retro gaming, especially for fast-paced titles like Extreme-G: Turbo Fusion or action games. The M64 AV Adapter introduces virtually no lag because it's a passive adapter—it just passes the signal through. If you're playing on a CRT, this is the best option for responsiveness.
HDMI converters can introduce lag, but the amount varies. High-quality converters with proper deinterlacing and scaling can keep lag under one frame, which is acceptable for most players. However, cheap converters might add noticeable delay, making games feel sluggish. If you're a competitive player or sensitive to lag, the AV Adapter paired with a CRT or a low-lag upscaler is the way to go.
- AV Adapter: minimal lag, ideal for CRT or external upscaler.
- HDMI converter: check reviews for lag performance; higher-end models are usually fine.
Price and Value
The M64 AV Adapter is typically very affordable, often costing less than a dedicated HDMI converter. It's a budget-friendly way to get your console hooked up if your TV has composite inputs. Plus, it's an official accessory, so you know it's built to last.
HDMI converters range from budget to premium. While you can find converters for under $30, they may not offer great quality. Spending more can get you features like scanline overlays and better scaling, which can enhance your retro experience. If you already own a good upscaler, the AV Adapter is the better value; otherwise, a mid-range HDMI converter might be worth the investment.
- AV Adapter: low cost, high reliability, but requires composite input.
- HDMI converter: price varies; invest in a quality one for best results.
Which Should You Choose?
The decision ultimately comes down to your TV setup and personal preferences. If you have a CRT or a TV with composite inputs, the M64 AV Adapter is a no-brainer—it's simple, lag-free, and affordable. You can even pair it with a high-quality external upscaler later if you want to play on a modern display without compromising on quality.
If your TV only has HDMI inputs and you don't want to deal with extra equipment, a good HDMI converter is the practical choice. Look for one with positive reviews from the retro community and features that match your needs. For many players, a converter that outputs 480p with minimal lag is the sweet spot.
- Choose the AV Adapter if you have a CRT or composite-compatible TV.
- Choose an HDMI converter if you need to connect directly to a modern TV.
- For the best of both worlds, use the AV Adapter with a dedicated upscaler.
Both the M64 AV Adapter and HDMI converters have their place in a retro gamer's toolkit. If you value authenticity and zero lag, the M64 AV Adapter is the clear winner. If convenience and modern connectivity are your priorities, a quality HDMI converter will serve you well. Whatever you choose, make sure it fits your setup and budget. For a reliable and official option, check out the M64 AV Adapter in our store—it's a great starting point for any M64 owner.

