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Apple Computing Products:
macOS - Desktop Hardware
iMac Dissapointment
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<blockquote data-quote="Avalon" data-source="post: 48977" data-attributes="member: 5184"><p>The clockspeed is a big part in CPU speed, but not all.</p><p></p><p>Just a little math example:</p><p>the smallest entity in the digital world is 1 Bit, right?</p><p>So, 8 Bits = 1 Byte</p><p>This means, a 32-bit CPU can get 32 Bits (4 Bytes) of information in one cycle (called 1 Hz), while a 64-bit CPU could get twice the size (8 bytes) in the same cycle.</p><p>This means a 64-bit CPU like the G5 would outperform a 32-bit like the G4, even at the same clockspeed. But for this, the OS and the application must take completely advantage of those 64-bit.</p><p>I know this is an over-simplification, and there are more factors, but it's just to show you that raw clockspeed isn't everything.</p><p>Sun's SPARC CPUs are running quite low clockspeeds, compared to actual Intel, AMD or PowerPC, but yet they are very fast. That's why they are still used in powerfull workstations.</p><p></p><p>It's like the maximum speed of a car doesn't only depend of the horsepower, but a lot more factors (weight, aerodynamics etc).</p><p></p><p>As OS X actually, and still with Tiger, isn't yet completely a 64-bit OS, and neither are available applications, I expect a noticeable speed bump once it gets there...</p><p>I'm pretty sure that if a 100% 64-bit OS (like Sun's OS for example) would be ported on the G5, it's performance would just outperform any actual 32-bit CPU.</p></blockquote><p></p>
[QUOTE="Avalon, post: 48977, member: 5184"] The clockspeed is a big part in CPU speed, but not all. Just a little math example: the smallest entity in the digital world is 1 Bit, right? So, 8 Bits = 1 Byte This means, a 32-bit CPU can get 32 Bits (4 Bytes) of information in one cycle (called 1 Hz), while a 64-bit CPU could get twice the size (8 bytes) in the same cycle. This means a 64-bit CPU like the G5 would outperform a 32-bit like the G4, even at the same clockspeed. But for this, the OS and the application must take completely advantage of those 64-bit. I know this is an over-simplification, and there are more factors, but it's just to show you that raw clockspeed isn't everything. Sun's SPARC CPUs are running quite low clockspeeds, compared to actual Intel, AMD or PowerPC, but yet they are very fast. That's why they are still used in powerfull workstations. It's like the maximum speed of a car doesn't only depend of the horsepower, but a lot more factors (weight, aerodynamics etc). As OS X actually, and still with Tiger, isn't yet completely a 64-bit OS, and neither are available applications, I expect a noticeable speed bump once it gets there... I'm pretty sure that if a 100% 64-bit OS (like Sun's OS for example) would be ported on the G5, it's performance would just outperform any actual 32-bit CPU. [/QUOTE]
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Apple Computing Products:
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iMac Dissapointment
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