OnePlus Ace Pro vs Xiaomi 12 Pro (Dimensity): A Deep Dive into Performance and Charging

The OnePlus Ace Pro and Xiaomi 12 Pro (Dimensity variant) represent compelling options in the flagship Android space, particularly as prices have adjusted since their initial releases. This comparison focuses on the core differences – Qualcomm’s Snapdragon 8+ Gen 1 in the Ace Pro versus MediaTek’s Dimensity 9000+ in the 12 Pro – and how those translate to real-world performance, battery life, and charging speeds. We'll dissect the architectural nuances and determine which device delivers the best experience for different user profiles.
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🏆 Quick Verdict

For most users, the OnePlus Ace Pro emerges as the stronger choice. Its Snapdragon 8+ Gen 1, coupled with the blistering 150W charging, provides a noticeable edge in sustained performance and convenience. While the Xiaomi 12 Pro’s Dimensity 9000+ is a capable chip, the Ace Pro’s charging speed and overall efficiency give it a decisive advantage.

PHONES
Phone Names OnePlus Ace Pro Xiaomi 12 Pro (Dimensity)
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 26, 28, 34, 38, 39, 40, 411, 2, 3, 4, 5, 7, 8, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G bands1, 3, 5, 8, 20, 28, 38, 40, 41, 77, 78 SA/NSA1, 3, 5, 8, 28, 38, 40, 41, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / CDMA / HSPA / LTE / 5GGSM / CDMA / HSPA / EVDO / LTE / 5G
 CDMA 800 CDMA2000 1xEV-DO
Launch
Announced2022, August 092022, July 04
StatusAvailable. Released 2022, August 15Available. Released 2022, July 13
Body
BuildGlass front (Gorilla Glass 5), plastic frame, glass back-
Dimensions163 x 75.4 x 8.8 mm (6.42 x 2.97 x 0.35 in)163.6 x 74.6 x 8.2 mm (6.44 x 2.94 x 0.32 in)
SIMNano-SIM + Nano-SIMNano-SIM + Nano-SIM
Weight203.5 g (7.20 oz)201 g (7.09 oz)
Display
ProtectionCorning Gorilla Glass 5Corning Gorilla Glass Victus
Resolution1080 x 2412 pixels, 20:9 ratio (~394 ppi density)1440 x 3200 pixels, 20:9 ratio (~521 ppi density)
Size6.7 inches, 108.0 cm2 (~87.9% screen-to-body ratio)6.73 inches, 109.4 cm2 (~89.6% screen-to-body ratio)
TypeFluid AMOLED, 1B colors, 120Hz, HDR10+, 500 nits (typ), 800 nits (HBM), 950 nits (peak)LTPO2 AMOLED, 1B colors, 120Hz, Dolby Vision, HDR10+, 1000 nits (HBM), 1500 nits (peak)
Platform
CPUOcta-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)Octa-core (1x3.20 GHz Cortex-X2 & 3x2.85 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
ChipsetQualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)Mediatek Dimensity 9000+ (4 nm)
GPUAdreno 730Mali-G710 MC10
OSAndroid 12, ColorOS 12.1Android 12, MIUI 13
Memory
Card slotNoNo
Internal256GB 12GB RAM, 256GB 16GB RAM, 512GB 16GB RAM128GB 8GB RAM, 256GB 12GB RAM
 UFS 3.1UFS 3.1
Main Camera
FeaturesColor spectrum sensor, Dual-LED flash, HDR, panoramaColor spectrum sensor, Dual-LED dual-tone flash, HDR, panorama
Single16 MP, f/2.4, 24mm (wide), 1/3", 1.0µm32 MP, f/2.5, 26mm (wide), 0.7µm
Triple50 MP, f/1.8, 24mm (wide), 1/1.56", 1.0µm, PDAF, OIS 8 MP, f/2.2, 120˚ (ultrawide), 1/4.0", 1.12µm 2 MP (macro)50 MP, f/1.9, 24mm (wide), 1/1.28", 1.22µm, dual pixel PDAF, OIS 13 MP, f/2.4, 15mm, 123˚ (ultrawide), 1/3.06", 1.12µm 5 MP, f/2.4, 50mm (telephoto macro), AF
Video4K@30/60fps, 1080p@30/60/240fps, gyro-EIS4K@30/60fps, 1080p@30/60/120fps, gyro-EIS
Selfie camera
FeaturesHDRHDR, panorama
Single16 MP, f/2.4, 24mm (wide), 1/3", 1.0µm32 MP, f/2.5, 26mm (wide), 0.7µm
Video1080p@30fps1080p@30/60fps, 720p@120fps
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 24-bit/192kHz audio24-bit/192kHz audio Tuned by Harman Kardon
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.3, A2DP, LE
Infrared port-Yes
NFCYesYes
PositioningGPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5)
RadioNoNo
USBUSB Type-C 2.0USB 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 (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging150W wired67W wired, PD3.0, QC4
TypeLi-Po 4800 mAhLi-Po 5160 mAh
Misc
ColorsMoonstone Black, Jade Green, Genshin ImpactGray, Blue
ModelsPGP1102207122MC
PriceAbout 500 EURAbout 570 EUR

OnePlus Ace Pro

  • Blazing-fast 150W charging
  • Snapdragon 8+ Gen 1 offers excellent performance
  • Potentially better thermal management

  • Software experience may be less polished than Xiaomi's
  • Availability may be limited in some regions

Xiaomi 12 Pro (Dimensity)

  • Dimensity 9000+ is a very capable processor
  • Potentially more refined software experience (MIUI)
  • Wider availability in some markets

  • 67W charging is significantly slower than 150W
  • May experience more thermal throttling under sustained load

Display Comparison

Both devices utilize 4nm chipsets, suggesting similar power efficiency benefits. However, display specifics are missing. Assuming both feature high refresh rate AMOLED panels (typical for this class), the key differentiator would be peak brightness and color calibration. Given Xiaomi’s history with excellent display quality, the 12 Pro likely boasts slightly better color accuracy out of the box. The absence of LTPO information means we can't assess adaptive refresh rate efficiency, but both likely implement it to some degree. Bezels are expected to be minimal on both.

Camera Comparison

Camera details are limited. However, both phones likely feature a primary sensor in the 50MP range. The Xiaomi 12 Pro’s image processing is typically more saturated and vibrant, appealing to a wider audience. The Ace Pro, leaning towards a more natural look, might appeal to photography enthusiasts. Without specific aperture and sensor size data, it’s difficult to definitively declare a winner. The presence of OIS on the main sensor is assumed on both, crucial for stable video recording and low-light photography. We'll disregard the likely inclusion of 2MP macro lenses on both devices as they offer minimal practical benefit.

Performance

The core of this comparison lies in the chipsets. The Qualcomm Snapdragon 8+ Gen 1 in the Ace Pro and the MediaTek Dimensity 9000+ in the 12 Pro are both built on a 4nm process, but differ in architecture. The Dimensity 9000+ boasts a slightly higher peak CPU clock speed (3.20 GHz vs 3.19 GHz on the X2 core), but the Snapdragon 8+ Gen 1 is known for its superior thermal management. The Ace Pro’s cooling system, combined with the Snapdragon’s efficiency, should result in less throttling during extended gaming sessions. Both utilize LPDDR5X RAM, ensuring ample memory bandwidth. The GPU performance is closely matched, but the Snapdragon’s Adreno 730 generally holds a slight edge in sustained graphics output.

Battery Life

The OnePlus Ace Pro’s 150W wired charging is its standout feature. This allows for a full charge in under 20 minutes, a significant advantage over the Xiaomi 12 Pro’s 67W charging. While the 12 Pro supports PD3.0 and QC4, the sheer speed of 150W is unmatched. Battery capacity is not specified, but the Ace Pro’s faster charging mitigates the impact of a potentially smaller battery. The Snapdragon 8+ Gen 1’s efficiency also contributes to better battery life under heavy load, offsetting any capacity differences.

Buying Guide

Buy the OnePlus Ace Pro if you prioritize raw gaming performance, need the fastest possible charging, and value sustained performance under load. Its 150W charging is a game-changer for power users. Buy the Xiaomi 12 Pro (Dimensity) if you prefer a slightly more refined software experience (depending on MIUI preference) and a potentially more efficient chip for lighter workloads, and if 67W charging is sufficient for your needs. The Xiaomi 12 Pro also benefits from wider availability in some markets.

Frequently Asked Questions

❓ Does the Snapdragon 8+ Gen 1 in the OnePlus Ace Pro overheat during prolonged gaming sessions?
The Snapdragon 8+ Gen 1 is known for its improved thermal efficiency compared to its predecessor. Coupled with the Ace Pro’s cooling system, it should handle extended gaming sessions with minimal throttling, offering a more consistent frame rate than the Dimensity 9000+ in the Xiaomi 12 Pro under similar conditions.
❓ How much faster is the 150W charging on the OnePlus Ace Pro compared to the 67W charging on the Xiaomi 12 Pro?
The 150W charging on the Ace Pro is significantly faster. While exact times vary, the Ace Pro can typically charge from 0-100% in around 20-25 minutes, whereas the Xiaomi 12 Pro takes approximately 40-50 minutes. This difference is substantial for users who frequently need to top up their battery quickly.
❓ Which phone is better for playing graphically demanding games like Genshin Impact or PUBG?
The OnePlus Ace Pro has a slight edge for graphically demanding games. The Snapdragon 8+ Gen 1, combined with its superior thermal management, allows for more sustained performance and less frame rate drops during long gaming sessions. While the Dimensity 9000+ is capable, it's more prone to throttling under heavy load.