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Why is 64-Bit Windows 8.1 1GB larger?

orangecat
By orangecat
in Windows
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I think I'm goign to give Windows 8.1 a try but I was wondering why is the 64-Bit ISO 1GB larger? Isn't 64-bit just a kernel change?

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I think I'm goign to give Windows 8.1 a try but I was wondering why is the 64-Bit ISO 1GB larger? Isn't 64-bit just a kernel change?

Depending on the ISA (Intel, whatever), various instructions need to be word-aligned (which may cause them to take more space), and numerical constants need to match the processor's word size. Binary code is full of int constants: your loops start at zero, etc. In short, the likely cause of the extra space is int padding and word alignment of constant data.

Depending on how it's compiled, 64-bit code may well use more memory. Data structures also want to be word-aligned for fast access, and the compiler may choose to pad your structs. Also, depending on the compiler, some int constants may change size. (That's why you always see typdefs like uint32: guaranteed size.) ive been running windows 8 since January and installed 8.1 yesterday, no issues thus far :)

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image quality of the start button is far greater =]

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Blue is the royal blood colour, thus costing more and taking up more space.

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Dafak did i just say?

Codename: HighFlyer, specs:  CPU: i5 2500k cooled by a H70ish(2 rad)   Mobo: MSI MPower Z77   GPUs: Gigabyte GTX 660 OC 1150 MHZ core, 3150 memory both   RAM: Corsair Vengeance 16G @1600mhz   SSD: ADATA Premier Pro sx900 / HDD Seagate Barracuda 1TB/Samsung 1TB   Power supply: Corsair RM650 80+ Gold   Case Corsair Carbide 500R   5.4 ghz achieved on the good old 2500k, may it rest in peace. Current daily OC is 4.8 @1.41 v

 

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