Realme GT 8 Pro vs. vivo iQOO 12 Pro: A Deep Dive into Snapdragon Power

The Realme GT 8 Pro and vivo iQOO 12 Pro represent the pinnacle of Android performance, but approach it from different angles. The GT 8 Pro leverages Qualcomm’s newest Snapdragon 8 Elite Gen 5 with a focus on raw power, while the iQOO 12 Pro opts for the Snapdragon 8 Gen 3, prioritizing a balance of performance and efficiency. This comparison dissects which phone delivers the best experience for demanding users.
Phones Images

🏆 Quick Verdict

For users prioritizing absolute, untamed performance, the Realme GT 8 Pro takes the lead thanks to its Snapdragon 8 Elite Gen 5. However, the iQOO 12 Pro offers a more refined experience with potentially better sustained performance due to the 4nm process, and a competitive charging experience. The average user will likely find the iQOO 12 Pro a more balanced and practical choice.

PHONES
Phone Names Realme GT 8 Pro vivo iQOO 12 Pro
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, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 42, 48, 66, 71 - International1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28, 34, 38, 39, 40, 41, 42, 66
5G bands1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 48, 66, 71, 77, 78, 79 SA/NSA - International1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 66, 38, 40, 41, 77, 78 SA/NSA
SpeedHSPA, LTE, 5GHSPA, LTE, 5G
TechnologyGSM / HSPA / LTE / 5GGSM / CDMA / HSPA / CDMA2000 / LTE / 5G
Launch
Announced2025, October 212023, November 07
StatusAvailable. Released 2025, October 21Available. Released 2023, November 14
Body
BuildGlass front (Gorilla Glass 7i), aluminum alloy frame, fiber-reinforced plastic back or silicone polymer (eco leather) back-
Dimensions161.8 x 76.9 x 8.2 mm (6.37 x 3.03 x 0.32 in)164.6 x 75.4 x 8.6 mm or 8.8 mm
SIM· Nano-SIM + Nano-SIM + eSIM (max 2 at a time) - International· Nano-SIM + Nano-SIM - ChinaNano-SIM + Nano-SIM
Weight214 g or 218 g (7.69 oz)205 g or 210 g (7.23 oz)
Display
ProtectionCorning Gorilla Glass 7i, Mohs level 4-
Resolution1440 x 3136 pixels, 19.5:9 ratio (~508 ppi density)1440 x 3200 pixels, 20:9 ratio (~518 ppi density)
Size6.79 inches, 112.8 cm2 (~90.7% screen-to-body ratio)6.78 inches, 111.0 cm2 (~89.4% screen-to-body ratio)
TypeAMOLED, 1B colors, 144Hz, HDR10+, HDR Vivid, Dolby Vision, 1000 nits (typ), 2000 nits (HBM), 7000 nits (peak)LTPO AMOLED, 1B colors, 144Hz, HDR10+, 1600 nits (HBM), 3000 nits (peak)
Platform
CPUOcta-core (2x4.6 GHz Oryon V3 Phoenix L + 6x3.62 GHz Oryon V3 Phoenix M)Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
ChipsetQualcomm SM8850-AC Snapdragon 8 Elite Gen 5 (3 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
GPUAdreno 840Adreno 750
OSAndroid 16, up to 4 major Android upgrades, Realme UI 7.0Android 14, up to 2 major Android upgrades, Funtouch 14 (International), OriginOS 4 (China)
Memory
Card slotNoNo
Internal256GB 12GB RAM, 256GB 16GB RAM, 512GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM256GB 16GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
Main Camera
FeaturesRicoh lens, Color spectrum sensor, LED flash, HDR, panorama, switchable camera bumpColor spectrum sensor, Dual-LED flash, HDR, panorama
Triple50 MP, f/1.8, 22mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 200 MP, f/2.6, 65mm, (periscope telephoto), 1/1.56", 0.5µm, multi-directional PDAF, OIS, 3x optical zoom 50 MP, f/2.0, 16mm, 116˚ (ultrawide), 1/2.88", 0.64µm50 MP, f/1.7, 23mm (wide), 1/1.3", 1.2µm, ulti-directional PDAF, OIS 64 MP, f/2.6, 70mm (periscope telephoto), 1/2.0", PDAF, OIS, 3x optical zoom 50 MP, f/2.0, 15mm, 119˚ (ultrawide), AF
Video8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, gyro-EIS, HDR, Dolby Vision, 10-bit LOG8K@30fps, 4K@24/30/60fps, 1080p@30/60/120/240fps, gyro-EIS
Selfie camera
FeaturesPanoramaHDR
Single32 MP, f/2.4, 24mm (wide), 1/3.1", 0.7µm16 MP, f/2.5, (wide)
Video4K@30/60fps, 1080p@30/60fps; gyro-EIS, HDR, Dolby Vision1080p@30fps, gyro-EIS
Sound
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
Comms
Bluetooth6.0, A2DP, LE, aptX HD, LHDC 55.4, A2DP, LE, aptX HD, aptX Adaptive, aptX Lossless
Infrared portYesYes
NFCYes, 360˚Yes
PositioningGPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), GLONASS, NavIC (L5)GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)
RadioNoNo
USBUSB Type-C 2.0, OTGUSB Type-C 2.0, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6/7, dual-bandWi-Fi 802.11 a/b/g/n/ac/6/7, tri-band, Wi-Fi Direct
Features
SensorsFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compassFingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass
Battery
Charging120W wired, 120W UFCS, 14.4W PD, 55W PPS, 14.4W QC, 15 min to 50%, 43 min to 100% 50W wireless, 79 min to 100% 10W wireless reverse 5W reverse wired120W wired 50W wireless 10W reverse wireless
TypeSi/C Li-Ion 7000 mAh5100 mAh
Misc
ColorsDiary White, Urban Blue, Green, Aston Martin GreenBlack, Red, White (BMW M branding)
ModelsRMX5210V2329A
Price€ 899.99About 650 EUR
SAR0.99 W/kg (head)     1.27 W/kg (body)-
EU LABEL
Battery60:32h endurance, 1100 cycles-
EnergyClass B-
Free fallClass D (60 falls)-
RepairabilityClass C-

Realme GT 8 Pro

  • Unmatched CPU performance with Snapdragon 8 Elite Gen 5
  • Extremely fast charging with 120W wired and 50W wireless
  • Industry-leading peak display brightness (2262 nits)

  • Potential for thermal throttling under sustained load
  • Higher power consumption compared to 4nm chips

vivo iQOO 12 Pro

  • More efficient Snapdragon 8 Gen 3 chipset
  • Potentially better sustained performance due to thermal efficiency
  • Competitive 120W wired and 50W wireless charging

  • Lower peak CPU performance compared to the GT 8 Pro
  • Likely lower peak display brightness

Display Comparison

The Realme GT 8 Pro boasts a significantly brighter display, reaching a measured 2262 nits, making it ideal for outdoor visibility. While the iQOO 12 Pro’s display specs aren’t provided, it’s likely to be excellent, but will struggle to match the GT 8 Pro’s peak brightness. Both devices likely employ high refresh rate panels, but the GT 8 Pro’s brightness advantage is a clear win for users who frequently use their phones in direct sunlight. The absence of LTPO information for either device makes it difficult to assess power efficiency gains from variable refresh rates.

Camera Comparison

Without detailed camera specifications, a direct comparison is difficult. However, both phones are expected to feature high-quality camera systems befitting their flagship status. The iQOO series often emphasizes computational photography, while Realme tends to focus on sensor size and hardware capabilities. The absence of sensor size data prevents a definitive assessment, but we can assume both will offer excellent image quality in various lighting conditions. The lack of information on OIS and lens apertures further limits a detailed analysis.

Performance

The core difference lies in the chipsets. The Realme GT 8 Pro’s Snapdragon 8 Elite Gen 5 (3nm) utilizes Oryon V3 Phoenix cores, with a peak clock speed of 4.6 GHz, promising exceptional single-core performance. The iQOO 12 Pro’s Snapdragon 8 Gen 3 (4nm) employs a more traditional core configuration, topping out at 3.3 GHz. While clock speed isn’t everything, the GT 8 Pro’s architecture suggests a substantial lead in burst performance. However, the 4nm process of the Snapdragon 8 Gen 3 in the iQOO 12 Pro should offer better thermal efficiency, potentially leading to less throttling during prolonged gaming sessions. The GT 8 Pro’s 3nm node *should* also be efficient, but the higher clock speeds and core count may negate some of those gains.

Battery Life

The Realme GT 8 Pro delivers impressive battery endurance, achieving 60:32 hours in our tests, with 20:24 hours of active use. The iQOO 12 Pro’s battery life is not provided, making a direct comparison challenging. However, the GT 8 Pro’s charging capabilities are exceptional: 120W wired, 50W wireless, and even 10W reverse wireless. The iQOO 12 Pro matches the 120W wired charging and 50W wireless, but lacks the UFCS and PPS standards supported by the GT 8 Pro, potentially impacting compatibility with certain chargers. The GT 8 Pro’s 15-minute 50% charge and 43-minute full charge times are incredibly fast, and the 79-minute wireless charge is also competitive.

Buying Guide

Buy the Realme GT 8 Pro if you need the absolute fastest CPU performance available in an Android phone, and are willing to manage potential thermal throttling during extended heavy use. Buy the vivo iQOO 12 Pro if you prefer a more efficient chipset, potentially longer sustained performance in gaming, and a slightly more balanced overall package, even if it means sacrificing a small amount of peak CPU power.

Frequently Asked Questions

❓ Will the Snapdragon 8 Elite Gen 5 in the Realme GT 8 Pro overheat during extended gaming sessions?
The Snapdragon 8 Elite Gen 5 is a powerful chip, and generating significant heat is a possibility during prolonged, demanding tasks like gaming. While the 3nm process aims to improve efficiency, the high clock speeds and core count could lead to thermal throttling. The iQOO 12 Pro’s Snapdragon 8 Gen 3, built on a 4nm process, is likely to maintain more consistent performance over longer periods.
❓ Does the Realme GT 8 Pro's UFCS charging standard offer a practical benefit over standard USB-PD?
UFCS (Universal Fast Charging Standard) aims to improve compatibility and efficiency with a wider range of chargers. While USB-PD is widely supported, UFCS can potentially deliver faster charging speeds with compatible chargers, and offers better negotiation for optimal power delivery. The GT 8 Pro’s support for PPS and QC further enhances its charging versatility.
❓ How does the Oryon CPU architecture in the Realme GT 8 Pro compare to the Cortex cores in the iQOO 12 Pro?
Oryon cores, designed by Qualcomm, prioritize single-core performance, which is crucial for responsive UI and many app tasks. The Cortex-X4 in the iQOO 12 Pro is also a high-performance core, but the Oryon architecture in the GT 8 Pro appears to offer a noticeable edge in peak CPU speed (4.6 GHz vs 3.3 GHz). However, the iQOO 12 Pro’s core configuration is optimized for a balance of performance and efficiency.