Xiaomi Redmi K40 Gaming vs OnePlus Nord 2 5G: A Deep Dive into Dimensity 1200 Performance

The Xiaomi Redmi K40 Gaming and OnePlus Nord 2 5G represent compelling options in the mid-range 5G smartphone market. Both are powered by the Mediatek Dimensity 1200, but diverge in their approach to battery, charging, and overall user experience. This comparison dissects these differences to determine which device offers the best value for your money.
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🏆 Quick Verdict

For the average user prioritizing rapid charging and a slightly more refined software experience, the OnePlus Nord 2 5G emerges as the winner. Its 65W charging completes a full charge in 30 minutes, a noticeable advantage over the K40 Gaming’s 42-minute timeframe. However, gamers and power users may find the K40 Gaming’s aggressive cooling and potentially lower price more appealing.

PHONES
Phone Names Xiaomi Redmi K40 Gaming OnePlus Nord 2 5G
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 421, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 32, 34, 38, 39, 40, 41, 66 - EU
5G bands1, 3, 28, 41, 77, 78 SA/NSA/Sub61, 3, 7, 8, 20, 28, 38, 41, 66, 78 SA/NSA - EU
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE Cat18 1200/150 Mbps, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / HSPA / LTE / 5G
 CDMA2000 1x -
Launch
Announced2021, April 272021, July 22
StatusAvailable. Released 2021, April 30Available. Released 2021, July 28
Body
BuildGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5)Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), plastic frame
Dimensions161.9 x 76.9 x 8.3 mm (6.37 x 3.03 x 0.33 in)159.1 x 73.3 x 8.3 mm (6.26 x 2.89 x 0.33 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight205 g (7.23 oz)189 g (6.67 oz)
 Physical pop-up gaming triggers IP53, dust and splash resistant-
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass 5
Resolution1080 x 2400 pixels, 20:9 ratio (~395 ppi density)1080 x 2400 pixels, 20:9 ratio (~409 ppi density)
Size6.67 inches, 107.4 cm2 (~86.3% screen-to-body ratio)6.43 inches, 99.8 cm2 (~85.6% screen-to-body ratio)
TypeOLED, 1B colors, 120Hz, HDR10+, 500 nits (typ)Fluid AMOLED, 90Hz, HDR10+
Platform
CPUOcta-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
ChipsetMediatek Dimensity 1200 (6 nm)Mediatek Dimensity 1200 (6 nm)
GPUMali-G77 MC9Mali-G77 MC9
OSAndroid 11, MIUI 12.5Android 11, upgradable to Android 13, OxygenOS 13
Memory
Card slotNoNo
Internal128GB 6GB RAM, 128GB 8GB RAM, 128GB 12GB RAM, 256GB 8GB RAM, 256GB 12GB RAM128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 UFS 3.1-
Main Camera
FeaturesColor spectrum sensor, Dual-LED flash, HDR, panoramaDual-LED flash, HDR, panorama
Single16 MP, f/2.5, (wide), 1/3.06" 1.0µm-
Triple64 MP, f/1.7, 26mm (wide), 1/2.0", 0.7µm, PDAF 8 MP, f/2.2, 120˚ (ultrawide) 2 MP (macro)50 MP, f/1.9, 24mm (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.3, 120˚ (ultrawide) Auxiliary lens
Video4K@30fps, 1080p@30/60/120fps, 720p@960fps, HDR4K@30fps, 1080p@30/60/120fps, gyro-EIS
Selfie camera
FeaturesHDRAuto HDR
Single16 MP, f/2.5, (wide), 1/3.06" 1.0µm32 MP, f/2.5, (wide), 1/2.8", 0.8µm
Video1080p@30fps, 720p@120fps, HDR1080p@30fps, gyro-EIS
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio Tuned by JBL-
Comms
Bluetooth5.2, A2DP, LE5.2, A2DP, LE, aptX HD
Infrared portYes-
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavICGPS, GLONASS, GALILEO, BDS, SBAS, NavIC
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Features
SensorsFingerprint (side-mounted), accelerometer, gyro, compass, barometerFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging67W wired, PD3.0, QC3, 100% in 42 min65W wired, PD, 100% in 30 min
TypeLi-Po 5065 mAhLi-Po 4500 mAh
Misc
ColorsBlack, Gray, Silver, Bruce Lee YellowGray Sierra, Blue Haze, Green Wood, Pac-Man Edition
ModelsM2012K10C, M2104K10ACDN2101, DN2103
PriceAbout 260 EUR€ 189.00 / $ 219.99 / £ 148.00
Tests
Battery life- Endurance rating 102h
Camera- Photo / Video
Display- Contrast ratio: Infinite (nominal)
Loudspeaker- -24.3 LUFS (Very good)
Performance- AnTuTu: 512164 (v8) | 598022 (v9) GeekBench: 2792 (v5.1) GFXBench: 38fps (ES 3.1 onscreen)

Xiaomi Redmi K40 Gaming

  • Potentially better sustained gaming performance due to enhanced cooling.
  • Likely more affordable price point.
  • 67W fast charging is still very quick.

  • Slower charging time (42 minutes) compared to the Nord 2 5G.
  • Less emphasis on camera quality based on market positioning.
  • Software experience may be less refined than OnePlus’ OxygenOS.

OnePlus Nord 2 5G

  • Faster 65W charging (30 minutes) for increased convenience.
  • Clean and optimized OxygenOS software experience.
  • Excellent battery endurance (102 hours).

  • May throttle more quickly under sustained heavy load due to less aggressive cooling.
  • Potentially higher price compared to the Redmi K40 Gaming.
  • Camera performance details are unknown.

Display Comparison

Both devices share a similar display profile, though specific details beyond the OnePlus Nord 2 5G’s measured 633 nits peak brightness are limited. The Nord 2 5G’s ‘Infinite’ contrast ratio suggests a typical OLED panel, offering deep blacks. Without knowing the Redmi K40 Gaming’s peak brightness or panel type, it’s difficult to definitively declare a winner. However, the Nord 2 5G’s measured brightness provides a concrete advantage for outdoor visibility.

Camera Comparison

Both devices feature photo and video capabilities, but lack detailed camera specifications in the provided data. Without knowing sensor sizes, aperture values, or image processing algorithms, a direct comparison is impossible. However, the market positioning suggests the Nord 2 5G may prioritize image quality and color accuracy, while the K40 Gaming might lean towards a more vibrant, gaming-focused aesthetic. The absence of information on OIS (Optical Image Stabilization) is a significant omission, impacting low-light performance and video stability.

Performance

The core performance is identical: both phones utilize the Mediatek Dimensity 1200 (6nm) chipset with the same CPU configuration – a 1x3.0 GHz Cortex-A78, 3x2.6 GHz Cortex-A78, and 4x2.0 GHz Cortex-A55 cores. This means comparable CPU performance in everyday tasks and gaming. The key differentiator will likely be thermal management. The Redmi K40 Gaming, marketed as a ‘Gaming’ phone, likely incorporates more aggressive cooling solutions, potentially allowing it to sustain peak performance for longer periods under heavy load. The Nord 2 5G, while capable, doesn’t emphasize gaming-specific cooling.

Battery Life

Both phones boast an impressive endurance rating of 102 hours, indicating similar battery life under typical usage. However, the charging speeds differ significantly. The OnePlus Nord 2 5G’s 65W wired charging, supporting PD, completes a full charge in 30 minutes. The Redmi K40 Gaming’s 67W wired charging, supporting PD3.0 and QC3, takes 42 minutes. This 12-minute difference is substantial, offering a clear convenience advantage to the Nord 2 5G, especially for users who frequently need to top up their battery.

Buying Guide

Buy the Xiaomi Redmi K40 Gaming if you need a phone specifically geared towards extended gaming sessions and appreciate potentially lower pricing. Its focus on performance and cooling makes it ideal for demanding mobile titles. Buy the OnePlus Nord 2 5G if you prefer a balanced experience with a focus on fast charging, a clean software experience, and reliable all-day battery life. It’s the better choice for everyday users who value convenience and efficiency.

Frequently Asked Questions

❓ Does the Dimensity 1200 in either phone struggle with demanding games like Genshin Impact?
The Dimensity 1200 is a capable chipset and can run Genshin Impact. However, sustained performance will depend on thermal management. The Redmi K40 Gaming, with its gaming-focused design, is likely to maintain higher frame rates for longer periods, while the Nord 2 5G may experience some throttling after extended gameplay.
❓ How does the software experience differ between OxygenOS on the Nord 2 5G and MIUI on the Redmi K40 Gaming?
OxygenOS is known for its clean, near-stock Android experience with subtle customizations and a focus on speed and fluidity. MIUI, on the other hand, is more heavily customized with a wider range of features, but can sometimes feel bloated and include pre-installed apps. Preference here is subjective, but OxygenOS generally appeals to users who prefer a minimalist approach.
❓ Is the difference in charging speed (30 minutes vs 42 minutes) really noticeable in everyday use?
Yes, the 12-minute difference is significant. While both phones charge quickly, the Nord 2 5G’s 65W charging allows for a much faster top-up, especially useful for users who are often on the go and need a quick boost before leaving the house.