how many cores in note3?

25112 used Ask the Experts™
this specs says a mobile ph with

Quad-core 2.3 GHz Krait 400 - N9005, N9002
Octa-core (4x1.9 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7) - N9000

does this  mean there are 12 cores? is this normal for a mobile phone? (generally even PCs or laptops only have 4 cores..)
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Terry WoodsIT Guru
Most Valuable Expert 2011
No. There are different specs for the N9005, the N9002 and N9000 by the look of it -

The LTE and China version of the Galaxy Note 3 (N9005) uses a 2.3 GHz quad-core Snapdragon 800 chip, while the international GSM-only model (N9000) uses an octa-core Exynos 5420, consisting of four 1.9 GHz Cortex-A15 cores and four 1.3 GHz Cortex-A7 cores. Testing has shown similar performance for both models.
(from Wikipedia: )
Jackie Man IT Manager
Top Expert 2010

GSMARENA website should read as follows.

Quad-core 2.3 GHz Krait 400 for N9005 and N9002

Octa-core (4x1.9 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7) for N9000


thanks for that info.

Quad-core 2.3 GHz for mobile phone is that same performance
Quad-core 2.3 GHz for laptop?
Terry WoodsIT Guru
Most Valuable Expert 2011
I would expect that each type of CPU has somewhat different performance, even if the number of cores (ie 4, for quad core) and clock speed (ie 2.3GHz) are the same. Smartphone CPUs are likely to be designed with a stronger focus on small size and low power usage than a laptop.
IT Manager
Top Expert 2010
You are comparing an Apple to Orange if you want to compare Quad-core 2.3 GHz for mobile phone and Quad-core 2.3 GHz for laptop.


The design for mobile CPU (Snapdragon 800 and 801) is for specific device and usage.

For CPU of smartphones and tablets, the features are:-

• eMMC 5.0 support
• 4 KiB + 4 KiB L0 cache, 16 KiB + 16 KiB L1 cache and 2 MiB L2 cache
• 4K × 2K UHD video capture and playback
• Up to 21 megapixel, stereoscopic 3D dual image signal processor
• Adreno 330 GPU
• USB 2.0 and 3.0
• VP8 encoding/decoding
• Qualcomm Quick Charge 2.0
• H.265/HEVC decoding in snapdragon 801

For CPU of laptops(Intel® CoreTM2 Extreme quad-core processor) , the features are:-

• Quad-core mobile processor for mobile with enhanced performance
• Supports Intel® architecture with Intel® Wide Dynamic Execution
• Supports L1 cache-to-cache (C2C) transfer
• On-die, primary 32-kB instruction cache and 32-kB write-back data cache in each
• 12-MB second-level shared cache with Advanced Transfer Cache architecture
• Streaming SIMD extensions 2 (SSE2), streaming SIMD extensions 3 (SSE3),
supplemental streaming SIMD extensions 3 (SSSE3) and SSE4.1 instruction sets
• Processors are offered at 1066-MHz source-synchronous front side bus (FSB)
• Advanced power management features including Enhanced Intel SpeedStep®
• Digital thermal sensor (DTS)
• Intel® 64 architecture
• Supports Enhanced Intel® Virtualization Technology
• Supports PSI2 functionality
• Execute Disable Bit support for enhanced security
• Half ratio support (N/2) for core to bus ratio

Besides, if the CPU is quad-core mobile, the max clock speed will be much higher than 2.3GHz.

In short, no direct comparison can be made as design and usage are very different.

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