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Let’s Be Honest: Few Things Are More Frustrating Than Buying A New Phone And It Already Looks Old. That Lag When Opening Instagram, The Delay In The Camera Focusing, The Keyboard That Doesn’t Keep Up With Your Typing.
When the budget is tight, the fear of buying a “white elephant” is real. You see the attractive price, but a voice in the back of your mind asks: “Is this going to be good?” And the answer is almost always in the brain of the device: the processor.
This article is your ultimate guide. I will demystify the “alphabet soup” (Snapdragon, MediaTek, GHz, nanometers) and show you exactly how to know if the processor of a cheap phone is good, simply and directly.
The Truth About How To Know If The Processor Of A Cheap Phone Is Good
First, understand: there is no magic. For a phone to be cheap, the manufacturer needs to cut costs somewhere. Often, that cut happens in the processor, the most crucial component for user experience.
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The processor (or “chipset”) is the brain that controls everything. The speed at which apps open, the smoothness of videos, the quality of processed photos, and even battery life.
In budget phones, the challenge is finding a balance. You don’t need the processor of a “premium” phone that costs 8,000 reais, but you need one that won’t let you down.
Knowing how to identify that “sweet spot” is the secret when analyzing phones to buy—it’s the difference between a good deal and a phone that will give you headaches for two years.
What Defines A Good Processor? (And What Is Just Marketing)
You will see many numbers and names. Most people get lost here. Let’s focus on what really impacts your life, breaking down the processor into three main parts.
1. The Frequency (GHz): The Speedometer
Gigahertz (GHz) is the “speed” of the processor. It’s the number that manufacturers love to highlight on the box. “Octa-Core 2.2 GHz!”
Sounds great, right? But GHz is like a car’s speedometer. A Beetle engine can be “turbocharged” to reach 150 km/h, but it’s still a Beetle engine.
The rule: It’s good for it to be high (above 2.0 GHz on performance cores), but never look at GHz alone. It only makes sense when combined with the architecture.
2. The Cores: The Workforce
Almost every phone today is “Octa-Core” (8 cores). This means it has eight “workers” in the brain. But just like in the real world, there’s a huge difference between 8 interns and 8 senior managers.
In cheap phones, it’s common to use 8 old and slow cores (like Cortex-A53 or A55). They are “Octa-Core,” but the performance is weak.
The ideal is a processor that mixes cores:
- Performance Cores (e.g., Cortex-A76): For heavy tasks, like opening games or editing a video.
- Efficiency Cores (e.g., Cortex-A55): For light tasks, like receiving notifications, saving battery.
Don’t get hung up on the names “Cortex,” just know that a chip with 2 strong cores and 6 weak ones is much better than one with 8 very weak cores.
3. The Lithography (nm): The Cat Jump!
If you can only remember one technical piece of information, let it be this: nanometers (nm).
The lithography is the manufacturing process of the chip. It defines how small the components inside are. And here, the rule is simple and universal: THE SMALLER THE NUMBER, THE BETTER.
- Why is smaller better?
- Heats less: A 7nm chip heats much less than a 14nm one.
- Uses less battery: Because it heats less, it is more efficient and consumes less energy.
- Is faster: It can process more data in the same space.
In cheap phones, avoid chips with 28nm or 14nm (they are museum pieces!). Aim for 12nm, 8nm, or, if you’re lucky, 7nm or 6nm, which are already excellent.
The Processor “Brands”: Who Is Who?
The name of the chip manufacturer says a lot. In the entry-level and mid-range market, the battle is fierce, especially between two giants.
Qualcomm Snapdragon
It’s the most famous “brand.” Snapdragon processors are known for their reliability and good graphic performance (for games).
- Series 400 (e.g., 480): The entry-level line. It works, but it’s the most basic. Tends to age quickly.
- Series 600 (e.g., 680, 695): The sweet spot for cheap phones! A Snapdragon 680 (6nm) or 695 is a sign of great cost-benefit.
- Series 700 (e.g., 778G): If you find a “cheap” phone with this chip, it’s a deal. They are excellent.
MediaTek (Helio and Dimensity)
MediaTek was once the “ugly duckling,” synonymous with lagging phones. That has CHANGED. Today, it dominates the entry-level market with excellent chips.
- Helio G-Series (e.g., G85, G88, G99): They are kings of cost-benefit. A Helio G99 (6nm) is fantastic, runs games, and is very efficient. The G85 and G88 (12nm) are very competent.
- Dimensity Series (e.g., 700, 810, 920): They are MediaTek’s more modern line. They bring 5G and mid-premium performance to more affordable phones.
And The Unisoc?
You will find this brand a lot in extremely cheap phones (under R$ 700).
- Unisoc Tiger (e.g., T606, T612, T616): Be cautious. The T616 and T612 are decent for the price (equivalent to an older Helio G80). The T606 is quite weak.
- The rule of Unisoc: Only accept if the phone is really very cheap and your usage is extremely basic (just WhatsApp and calls).
Warning Signs: What To AVOID At All Costs
In your search, you will find some “traps.” If you see any of the items below in the specifications, run:
- “Quad-Core 1.3 GHz Processor”: If the brand doesn’t even specify the name (Snapdragon, MediaTek) and just says “Quad-Core” (4 cores), it’s a generic and very old processor. It’s a sure recipe for frustration.
- 28nm or 14nm lithography: As we’ve seen, it’s old technology. The phone will heat up like a frying pan and the battery won’t last long.
- Less than 4GB of RAM: This is not the processor, but it’s its partner. A good processor with only 3GB of RAM (or 2GB!) can’t work. Android today requires a minimum of 4GB to be usable.
- eMMC storage: Another partner. If the internal storage is of the “eMMC” type, it’s slow. It’s like putting a Ferrari engine in a wagon with cart wheels. Look for UFS 2.1 or UFS 2.2 storage, which is much faster.
The “Real World” Test: The Best Checker
Okay, you’ve analyzed the numbers. But how do you know if it’s fast in practice?
The best tool you have isn’t in the store; it’s in your pocket: YouTube.
Before buying, search for these terms:
- “[Phone Name] performance review”
- “[Phone Name] gaming test”
- “[Phone Name] vs [Other Phone You’re Unsure About]”
Watch the videos. See if the person using it complains about lag. Notice how fast the apps open. Check if the game stutters. This “real use test” is worth more than any technical specifications.
How To Know If The Processor Of A Cheap Phone Is Good?
See how it’s not a six-headed beast? Knowing if the processor of a cheap phone is good becomes an intelligent analysis rather than a guessing game.
You no longer have to be at the mercy of the salesman or the marketing on the box. Now you know that an “Octa-Core” may not mean anything, but a number of “nanometers” (nm) can mean everything.
You learned that a MediaTek Helio G99 or a Snapdragon 680 are safe bets, that 4GB of RAM is the minimum acceptable, and that YouTube is your best consultant.
The real “value” doesn’t lie in buying the most expensive, but in buying the smartest. With this knowledge, you are ready to find a cheap phone that won’t treat you like a cheap user but will deliver the performance you deserve.
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