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Retro Carnival CM3

Retro Carnival CM3 by DIY, Horizontal retro handheld, running Linux (RetroPie), powered by Broadcom BCM2837 (Raspberry Pi Compute Module 3), with a 3.2 inch dis...

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Retro Carnival CM3
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Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3
Retro Carnival CM3

Specifications

  • Brand: DIY
  • Release Date: 2019 / 08
  • Price: $358 (Discontinued)
  • Form Factor: Horizontal
  • OS: Linux (RetroPie)

Where To Buy

Marketplace rows use affiliate-friendly links where available. Average price stays based on the console database, not live per-store pricing.

Store Price
Reddit (info)
Generated from spreadsheet vendor label
$358 (Discontinued)
Amazon
Amazon search results
$358 (Discontinued)
AliExpress
AliExpress search results
$358 (Discontinued)

Affiliate disclosure and terms are linked in the footer.

DIY Retro Carnival CM3 review: the data-backed case for putting it on your radar

Broad emulation range

Retro Carnival CM3 lands in a crowded lane, which is exactly why the comparison with MGSP, Game Case GBA CM3, and 1UP PiX Portable matters so much.

If your library leans toward Game Boy, NES, and Sega Genesis, Retro Carnival CM3 immediately becomes more than just another line in a spreadsheet.

Best For

  • Players who want a balanced handheld that can stretch beyond the basics.
  • Best fit for Game Boy (A), NES (A), and Sega Genesis (A).
  • Designed around a horizontal handheld shape.

Why It Hooks You

  • Overall rating sits at ⭐️⭐️⭐️⭐️.
  • IPS display story helps define the vibe.
  • Current price context is $358 (Discontinued).

Watch Outs

  • Price, 3D printed look (new shells coming?)
  • Some systems, including Nintendo DS (C) and Nintendo 64 (C), may need more tuning.

Spec Snapshot

Before the review gets opinionated, here is the clean spec picture. This table is the reality check that keeps the rest of the write-up grounded.

CategoryDetails
BrandDIY
Release2019 / 08
Form factorHorizontal
Operating systemLinux (RetroPie)
Overall performance⭐️⭐️⭐️⭐️
SoCBroadcom BCM2837 (Raspberry Pi Compute Module 3)
CPUCortex-A53, 4 Cores, and 1.2 GHz
GPUBroadcom VideoCore IV and 250 MHz
RAM1 GB DDR2
Display3.2 inch, IPS, and 60 Hz
Resolution480 x 320, 3:2, and 180.28 PPI
Battery and cooling2920 mAh and Heatsink Ventilation cutouts
Storage and I/OExternal MicroSD, Micro USB, Mini HDMI, and 3.5mm Headphone
Price$358 (Discontinued)

If this review pulls you in, the fastest next rabbit hole is MGSP and Game Case GBA CM3, because those are the products most likely to clarify whether Retro Carnival CM3 is your real match or just your current curiosity.

Where The Value Story Gets Real

Retro Carnival CM3 is currently tracked around $358 (Discontinued) and lands in the Discontinued pricing band. Retro handhelds are almost never judged in isolation; they are judged against the five other devices sitting one tab away in a buyer's browser.

The spreadsheet points shoppers toward Reddit (info) for availability. That matters because storefront quality, shipping confidence, and after-sales expectations often shape the emotional experience of a purchase before the box even arrives. The listed strengths orbit around dual analogs, l2/r2.

The tradeoffs are not buried, either: the sheet flags price, 3d printed look (new shells coming?). That is why value is always a conversation between specs and priorities. There is no universal bargain, only a good fit at the right moment.

How It Lives Beyond The Spec Sheet

Retro Carnival CM3 is described with battery: 2920 mAh and cooling: Heatsink Ventilation cutouts. Those are not background details; they shape noise, comfort, endurance, and whether the device feels eager to be used or mildly exhausting to keep fed. Audio is covered by Dual Stereo Bottom facing and 3.5mm Headphone, which matters for sofa play, travel, and late-night sessions when speakers and headphone output can quietly make or break the experience.

Physically, the device is outlined by 149 mm x 60 mm x 17.5mm, 303.0, Metal (Aluminum), and Black, White, (Red & Yellow soon). This is where you start picturing whether it is truly pocketable, only jacket-safe, or clearly a bag companion. Buyers often underestimate how much daily affection is driven by the little things: where the ports sit, how the shell feels, and whether the handheld seems built for real use instead of product photos.

The practical I/O story includes External MicroSD, USB, WiFi, Micro USB, and Mini HDMI. These details matter because many retro buyers are also collectors, tinkerers, dock-and-TV players, or people with large libraries that need sensible storage and transfer options.

Display and Ergonomics

Retro Carnival CM3 pairs the hardware with 3.2 inch, IPS, 60 Hz, 480 x 320, 3:2, and 180.28 PPI. That is the kind of detail stack retro buyers should linger on, because a handheld can be technically capable and still feel wrong if the aspect ratio, sharpness, and scaling story are off. The screen protection is listed as None (Protector only), a small clue that often hints at how polished or rough the front face might feel in daily use.

The controls are described with Cross Upper placement, Dual thumbsticks Lower placement, 4 Buttons, L1, R1, L2, R2 Horizontal, and Power. That matters more than many spec sheets admit, because the difference between a fun handheld and a fatiguing one often shows up in the D-pad, shoulder shape, and how naturally the thumbs settle into place. This is where a retro handheld stops being abstract and starts becoming a piece of physical furniture for your hands.

The 3:2 aspect ratio adds another layer to the story. Some buyers want sharp all-purpose flexibility, others want a screen that flatters the systems they actually play most. Good reviews should make that tradeoff visible instead of pretending every resolution solves every problem.

If You Are Comparing It To Nearby Rivals

ConsoleAnglePricePerformanceWhy Click Through
MGSP
Multi Game System
Closest Match350.0⭐️⭐️⭐️⭐️same operating system, horizontal layout, tracked around 350.0.
Better Value175.0⭐️⭐️⭐️⭐️same operating system, horizontal layout, tracked around 175.0.
Better Value175.0⭐️⭐️⭐️⭐️same operating system, horizontal layout, tracked around 175.0.
Retro CM3
KinHanK
Better Value150.0⭐️⭐️⭐️⭐️same operating system, horizontal layout, tracked around 150.0.

Retro Carnival CM3 becomes much easier to judge once it is forced into the same room as MGSP, Game Case GBA CM3, and 1UP PiX Portable. This is where a vague impression turns into a real buying decision, because each nearby rival throws a different kind of pressure on the table.

Retro Carnival CM3 versus MGSP is interesting because closest match is the obvious angle. Compared with Retro Carnival CM3, MGSP makes the more obvious play for readers who care about closest match. MGSP is tracked around 350.0. Its overall rating is ⭐️⭐️⭐️⭐️. That said, retro Carnival CM3 versus Game Case GBA CM3 is interesting because better value is the obvious angle. Game Case GBA CM3 sits close enough to Retro Carnival CM3 to make the comparison meaningful, but different enough to sharpen the buying decision. More importantly, game Case GBA CM3 is tracked around 175.0. More importantly, retro Carnival CM3 versus 1UP PiX Portable is interesting because better value is the obvious angle. 1UP PiX Portable sits close enough to Retro Carnival CM3 to make the comparison meaningful, but different enough to sharpen the buying decision. 1UP PiX Portable is tracked around 175.0.

The real benefit of this comparison set is not that it declares a single winner. It reveals which compromise profile feels least annoying over time.

The Buyer Profile

Retro Carnival CM3 is best framed as a machine for players who want a balanced handheld that can stretch beyond the basics. That may sound obvious, but it is the difference between buying a handheld that becomes a habit and one that turns into a drawer resident.

The horizontal shape matters here because it changes comfort, portability, and the kind of nostalgia the device leans into. The fact that it runs Linux (RetroPie) also affects what kind of setup work, app ecosystem, and tinkering ceiling buyers should expect.

The release timing listed as 2019 / 08 helps place it in context. A handheld can be exciting because it is current, but it can also be relevant because it still makes sense at today's street price.

Where The Hardware Should Hold Up

The heart of the machine is the Broadcom BCM2837 (Raspberry Pi Compute Module 3). CPU duties are handled by Cortex-A53. Graphics are handled by Broadcom VideoCore IV. Memory is listed at 1 GB DDR2. The sheet rates the overall performance at ⭐️⭐️⭐️⭐️, or roughly 4 on the normalized scale.

The CPU side is described with 4 Cores, 4 Threads, and 1.2 GHz, which is more useful than brand names alone because it hints at how much headroom the handheld should have before emulator tuning gets annoying. On the graphics side, 250 MHz and ARM helps sketch the ceiling for heavier systems, upscale experiments, and shader curiosity.

Retro Carnival CM3 looks strongest with Game Boy (A), NES (A), Sega Genesis (A), Game Boy Advance (A), Super Nintendo (A), and PlayStation 1 (A), which gives the review something more tangible than a vague "good for retro" verdict. The listed emulation limit, SNES FX & 3D PS1 (60 FPS), N64 & NDS (playable but can be laggy), is the kind of line buyers should actually respect because it tells you where the romance ends and the compromise begins.

The middle tier of compatibility, including Nintendo DS (C), Nintendo 64 (C), and Dreamcast (C), is where the buyer needs some honesty. These are usually the systems that separate a casual dabbler from a user who is happy tweaking emulator settings, testing cores, or accepting the occasional rough edge.

Where The Recommendation Lands

Retro Carnival CM3 leaves the strongest impression when you frame it as a recommendation for players who want a balanced handheld that can stretch beyond the basics. That is also what turns the buying advice from noise into something useful.

Broad emulation range is not just a catchy label here. It is the cleanest shorthand for why this device deserves attention. The compatibility profile around Game Boy (A), NES (A), Sega Genesis (A), and Game Boy Advance (A) gives it a concrete identity. The main caution remains price, 3d printed look (new shells coming?).

If the device sparks your interest, the smartest next click is usually MGSP, followed by Game Case GBA CM3, because that is where the shape of the market around it comes into focus. That is what a good review should do: not close the conversation, but sharpen the next choice.

Playable Games

Games shown here match systems this handheld can run at a B grade or better.

...Iru!
...Iru!

1998 PlayStation 1

...Iru! takes place in a high school with a large mechanical clock in the center. You control an upper classman who, along with his fellow students an...

'98 Year Koushien
'98 Year Koushien

1998 PlayStation 1

The sixth in the Koshien series. It is a high school baseball simulation which chooses one from 40 000 high schools from Hokkaido in the north to Okin...

'The
'The

2016 Super Nintendo

Mario goes on another quest to save the kingdom. What obstacles will he be facing this time? 'the (also known as Coronation Day) is a Horror themed S...

0 to X
0 to X

2016 Nintendo Entertainment System

Based on a hit internet phenomenon, 0-to-X is an addictive puzzler developed by nemesys. In addition to tile mashing fun, the game features an amazing...

007 Racing
007 Racing

2000 PlayStation 1

In 007 Racing you can get behind the wheel of James Bond's car. You must complete missions which range from collecting an object and getting out aliv...

1 On 1
1 On 1

1998 PlayStation 1, PlayStation 3, PSP

A mix between a 3D fighting game and basketball. Slam dunk and beat up your way through opponents to prove your legendary basketball abilities.