does this work with a 32-bit operating system

Ram is the benefactor here if you have more than 4 gigabytes get 64 bit if you have less than 4 get 32 bit processors really have nothing to with 32-64 bit only the ram

yes, fan is included. BX80662I56400http://ark.intel.com/products/88185/Intel-Core-i5-6400-Processor-6M-Cache-up-to-3_30-GHz

why is this processer clocked so low?

That's just the base clock. The 4 core boost max is 3.1GHz, compared to the 6500's 4 core max of 3.3GHz. For CPU intensive applications it's basically only 200-300 MHz slower depending on how many cores are being utilized(provided that Turbo Boost kicks in).

Does this come with a fan

Yes, only the K series processors come without stock fans.

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Intel i5 6400 Skylake 2.7GHz Quad Core 1151 Socket Processor

Intel i5 6400 Skylake 2.7GHz Quad Core 1151 Socket Processor

Product ID: 48335274

Details

Brand
Intel
CPU manufacturer
Intel
CPU model
Core i5 6400
CPU socket
LGA 1151
CPU speed
3.3
Cache size
6

⚡2.7 GHz base, 3.3 GHz Turbo Boost

💾Supports up to 64GB DDR3/DDR4 RAM

🧠Quad Core, 4 Threads for multitasking

793 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Power your professional edge with Intel i5 Skylake — where speed meets smart innovation.

STUNNING 4 K VISUALS - Built-in Intel HD Graphics enable smooth 4K video playback and immersive multimedia experiences across multiple screens.
QUAD CORE POWERHOUSE - Four cores and four threads deliver efficient performance for demanding apps and creative projects alike.
SECURE SMART COMPUTING - Integrated security features like facial recognition and True Key technology keep your data safe with effortless login.
TURBOCHARGED PRODUCTIVITY - Experience seamless multitasking with Intel Turbo Boost up to 3.3 GHz, powering your workflow without a hitch.
FUTURE READY MEMORY SUPPORT - Maximize your system’s potential with support for up to 64GB of fast DDR3L and DDR4 memory at speeds up to 2133 MHz.

The Intel Core i5-6400 Skylake processor is a 6th generation quad-core CPU with a base clock of 2.7 GHz and Turbo Boost up to 3.3 GHz. Compatible with LGA1151 sockets, it supports up to 64GB of DDR3L/DDR4 RAM at speeds up to 2133 MHz, and features Intel HD Graphics for crisp 4K visuals. Designed for efficient multitasking and secure computing, it’s ideal for professionals seeking reliable performance and future-proof versatility.

Specifications

ASIN	B010T6CG7E
Best Sellers Rank	417,825 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1,813 in CPUs
Brand Name	Intel
Cache Memory Installed Size	6
Cooling Method	Active (Dedicated Fan)
Customer Reviews	4.6 4.6 out of 5 stars (551)
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00735858301497, 04053162974425, 05032037076616
Item Weight	295 g
Manufacturer	Intel
Manufacturer Part Number	BX80662I56400
Model Number	BX80662I56400
Number of Items	1
Platform	Windows
Processor Brand	Intel
Processor Core Count	4
Processor Count	4
Processor Number of Concurrent Threads	4
Processor Series	Core i5 6400
Processor Socket	LGA 1151
Processor Speed	3.3
Product Warranty	2 years
Secondary Cache	6 MB
UPC	735858301497 735858326087
Wattage	65

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