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InnoReviews

MediaTek Dimensity 8400 vs Samsung Exynos 990

WINNER
MediaTek Dimensity 8400
56.3Inno Score
VS
S
30.8Inno Score
45.9CPU29.8
46.1GPU25.7
71.7Benchmarks37.4
73.8Efficiency32.1
9 spec wins — MediaTek Dimensity 84000 spec wins — Samsung Exynos 990

InnoReviews verdict

MediaTek Dimensity 8400 wins this mobile chipset face-off, 56.3 to 30.8, pulling ahead mainly in efficiency (+42) and benchmarks (+34). Samsung Exynos 990 still makes sense if its price or standout specs fit your needs better.

Which would you pick?

Key differences

Reasons to pick the MediaTek Dimensity 8400

  • Stronger CPU score: 46 vs 30
  • Stronger GPU score: 46 vs 26
  • Stronger benchmarks score: 72 vs 37
  • Stronger efficiency score: 74 vs 32
  • 289% higher AnTuTu 10: 1,946,644 vs 500,000

Reasons to pick the Samsung Exynos 990

No decisive spec advantages — this side competes on price and preference.

General

General comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
Announced20242020
Process4 nm+43%7 nm
TDP (typical)6 W+40%10 W
ArchitectureArmv9.2Armv8.2

CPU

CPU comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
Cores88
Core configuration1x3.25 GHz Cortex-A725 + 3x3.0 GHz Cortex-A725 + 4x2.1 GHz Cortex-A7252x2.73 GHz Exynos M5 + 2x2.5 GHz Cortex-A76 + 4x2.0 GHz Cortex-A55
Max clock3.25 GHz+19%2.73 GHz

GPU

GPU comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
GPUArm Mali-G720 MC7Arm Mali-G77 MP11

AI

AI comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
NPUMediaTek NPU 880—

Memory

Memory comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
Memory typeLPDDR5X-8533LPDDR5-2750
Max bandwidth68.3 GB/s+55%44 GB/s

Connectivity

Connectivity comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
ModemIntegrated 5G modemExynos 5123 5G (external)
Max download5.2 Gbps—
Wi-FiWi-Fi 6EWi-Fi 6
Bluetooth5.45.0

Media

Media comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
Max display—WQHD+ @ 120Hz
Video capture4K@60fps8K@30fps

Benchmarks

Benchmarks comparison: MediaTek Dimensity 8400 versus Samsung Exynos 990
SpecMediaTek Dimensity 8400Samsung Exynos 990
AnTuTu 101,946,644+289%Top 12%500,000Top 60%
Geekbench 6 (single)1,450+61%Top 28%900Top 61%
Geekbench 6 (multi)6,400+142%Top 16%2,650Top 53%
3DMark Wild Life Extreme3,400+278%Top 32%900Top 81%
AnTuTu 10 (CPU)560,176Top 32%—
AnTuTu 10 (GPU)642,040Top 23%—
AnTuTu 10 (Memory)339,619Top 23%—
AnTuTu 10 (UX)404,809Top 32%—

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