TCL 20 5G vs Realme 8 5G: A Deep Dive into Budget 5G Performance

The TCL 20 5G and Realme 8 5G represent a sweet spot in the smartphone market – affordable access to 5G connectivity. Both aim to deliver a modern smartphone experience without breaking the bank, but they achieve this with different approaches to core components. This comparison dissects the key differences between the Qualcomm-powered TCL 20 5G and the MediaTek-equipped Realme 8 5G, helping you determine which device best suits your needs.
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🏆 Quick Verdict

For the average user prioritizing consistent performance and a slightly more refined software experience, the TCL 20 5G emerges as the better choice. Its Snapdragon 690 chipset, built on an 8nm process, offers a slight edge in efficiency and sustained performance compared to the Realme 8 5G’s Dimensity 700.

PHONES
Phone Names TCL 20 5G Realme 8 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1900 / 2100HSDPA 800 / 850 / 900 / 1900 / 2100
4G bands1, 3, 5, 7, 8, 20, 26, 28, 32, 38, 40, 411, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 - International
5G bands1, 3, 5, 28, 41, 78 SA/NSA1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA - International
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / HSPA / LTE / 5G
 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 1, 28, 41, 77, 78 SA/NSA - India
Launch
Announced2020, November 30. Released 2020, December 072021, April 21
StatusDiscontinuedAvailable. Released 2021, April 28
Body
Build-Glass front, plastic frame, plastic back
Dimensions166.2 x 76.8 x 9.1 mm (6.54 x 3.02 x 0.36 in)162.5 x 74.8 x 8.5 mm (6.40 x 2.94 x 0.33 in)
SIM· Nano-SIM· Nano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight206 g (7.27 oz)185 g (6.53 oz)
Display
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~405 ppi density)
Size6.67 inches, 107.4 cm2 (~84.2% screen-to-body ratio)6.5 inches, 102.0 cm2 (~83.9% screen-to-body ratio)
TypeIPS LCD, HDR10, 450 nits (typ)IPS LCD, 90Hz, 480 nits (typ), 600 nits
Platform
CPUOcta-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver)Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
ChipsetQualcomm SM6350 Snapdragon 690 5G (8 nm)Mediatek Dimensity 700 (7 nm)
GPUAdreno 619LMali-G57 MC2
OSAndroid 10, TCL UIAndroid 11, upgradable to Android 13, Realme UI 4.0
Memory
Card slotmicroSDXC (uses shared SIM slot)microSDXC (dedicated slot)
Internal128GB 6GB RAM, 256GB 6GB RAM64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM
 UFS 2.1UFS 2.1
Main Camera
FeaturesLED flash, HDR, panoramaLED flash, HDR, panorama
Single-16 MP, f/2.1, 26mm (wide)
Triple48 MP, f/1.8, 26mm (wide), 1/2.0", 0.8µm, PDAF 8 MP, f/2.2, 16mm, 118˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)48 MP, f/1.8, 26mm (wide), PDAF 2 MP (macro) Auxiliary lens
Video4K@30fps, 1080p@30/60fps, gyro-EIS1080p@30fps
Selfie camera
FeaturesHDRHDR
Single8 MP, f/2.0, 27mm, (wide), 1/4.0", 1.12µm16 MP, f/2.1, 26mm (wide)
Video1080p@30fps1080p@30fps
Sound
3.5mm jack YesYes
35mm jackYesYes
Loudspeaker YesYes
 24-bit/192kHz audio24-bit/192kHz audio
Comms
Bluetooth5.1, A2DP, LE, aptX HD5.1, A2DP, LE
NFCYesYes
PositioningGPS (L1+L5), GLONASS, BDS, GALILEOGPS, GLONASS, BDS, GALILEO, QZSS
RadioFM radioUnspecified
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Battery
Charging18W wired, QC418W wired
TypeLi-Po 4500 mAh5000 mAh
Misc
ColorsMist Gray, Placid BlueSupersonic Blue, Supersonic Black
ModelsT781, T781K, T781HRMX3241
PriceAbout 300 EURAbout 170 EUR
Tests
Battery life- Endurance rating 118h
Camera- Photo / Video
Display- Contrast ratio: 1413:1 (nominal)
Loudspeaker- -27.8 LUFS (Good)
Performance- AnTuTu: 302059 (v8), 361505 (v9) GeekBench: 1784 (v5.1) GFXBench: 13fps (ES 3.1 onscreen)

TCL 20 5G

  • Snapdragon 690 offers efficient performance.
  • Potentially better thermal management.
  • Qualcomm’s software optimization is generally stable.

  • Limited detailed specs available.
  • Display details are unknown.

Realme 8 5G

  • Dimensity 700 provides strong single-core performance.
  • Similar battery endurance to TCL 20 5G.
  • Competitive price point.

  • MediaTek chipsets can sometimes exhibit more aggressive power management.
  • Limited detailed specs available.

Display Comparison

Both the TCL 20 5G and Realme 8 5G share a nominal contrast ratio of 1413:1, suggesting similar visual pop. However, detailed display specs like peak brightness, color gamut coverage, and panel type (IPS vs AMOLED) are missing. Given the price point, both likely utilize IPS LCDs. The absence of high refresh rate support on either device is typical for this segment, but impacts smoothness during scrolling and gaming. Without further data, it’s difficult to declare a clear winner; the display experience will likely be comparable.

Camera Comparison

Both devices are listed as having 'Photo / Video' capabilities, but lack specific details regarding sensor size, aperture, or image processing features. This suggests a focus on affordability over cutting-edge camera technology. The absence of information regarding Optical Image Stabilization (OIS) implies both rely on software stabilization. Without detailed specs, it’s difficult to assess camera quality. The presence of a 2MP macro camera on many phones in this price range is often more of a marketing feature than a genuinely useful addition, and should not be a deciding factor.

Performance

The core difference lies in the chipsets. The TCL 20 5G features the Qualcomm Snapdragon 690 5G (8nm), while the Realme 8 5G uses the MediaTek Dimensity 700 (7nm). While the Dimensity 700 boasts a slightly higher peak CPU clock speed (2.2 GHz Cortex-A76 vs 2.0 GHz Kryo 560 Gold), the Snapdragon 690 benefits from Qualcomm’s optimized architecture and 8nm fabrication. This translates to potentially better thermal management and sustained performance under load. The Dimensity 700’s Cortex-A76 cores offer strong single-core performance, beneficial for app launch times, but the Snapdragon 690’s Kryo cores are designed for efficiency. Both phones will handle everyday tasks well, but the TCL 20 5G is likely to exhibit less throttling during extended gaming sessions.

Battery Life

Both the TCL 20 5G and Realme 8 5G share an endurance rating of 118 hours, indicating comparable battery life under typical usage. Both also support 18W wired charging with Quick Charge 4 (QC4) compatibility. The actual 0-100% charging time will likely be around 2-2.5 hours for both devices. The similar endurance ratings suggest that despite potential chipset efficiency differences, software optimizations and battery capacity are well-matched.

Buying Guide

Buy the TCL 20 5G if you need a phone that handles everyday tasks and light gaming smoothly, and you value a chipset known for its stability and efficient power consumption. Buy the Realme 8 5G if you prioritize a potentially higher peak performance in short bursts, and are comfortable with MediaTek’s software optimizations, and are looking for a phone with a similar endurance rating.

Frequently Asked Questions

❓ Does the Dimensity 700 in the Realme 8 5G tend to overheat during prolonged gaming sessions?
While the Dimensity 700 is a capable chipset, it's built on a 7nm process, which can generate more heat under sustained load compared to the Snapdragon 690's 8nm process. Users may experience some throttling during extended gaming, potentially leading to frame rate drops. However, this will depend on the game and the phone's thermal design.
❓ Is the 18W charging speed on either phone considered slow by today's standards?
Yes, 18W charging is relatively slow compared to the 30W, 65W, or even 120W charging found on more expensive smartphones. Expect a full charge to take around 2-2.5 hours. However, for phones in this price range, 18W is fairly standard and sufficient for overnight charging.
❓ Will either phone struggle with common apps like Facebook, Instagram, and YouTube?
Neither phone should struggle with common social media and streaming apps. Both the Snapdragon 690 and Dimensity 700 are more than capable of handling these tasks smoothly. The real-world experience will likely be very similar for everyday app usage.