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So I work at a company as an IT guy while I am doing my computer engineering degree. Doing hardware and software maintenance of computers is part of my job. I have had a weird experience with two of the computers. These two computers(one desktop one laptop) were the slowest computers in the company. The laptop is Dell Inspiron N5010 with i3 370M(2 cores, 4 threads) processor. The desktop is HP 500B MT with E5800(2 cores 2 threads) processor.

At first, both of these computers had windows 7 running on them. CPU-Z(1.87.0) benchmark of the desktop was 113(single thread), 227(multithread). The laptop was 82, 267.

After I formatted these computers with windows 10 and ran the same CPU-Z version benchmark, I got exactly double performance with both computers. Both single threading and multithreading scores got doubled.

After formatting with windows 10, desktop got 270, 510. Laptop got 180, 520.

What is causing this? Physical core number stayed the same. Logical core number stayed the same. I am baffled.

Michael
  • 113

2 Answers2

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Is it possible that you upgraded from 32 bit Windows 7 to 64 bit Windows 10? According to this FAQ under the point What algorithm does the benchmark use... they state that

the 32-bit version keeps using the legacy x87 instructions, resulting in almost half of the x64 performance

nulldroid
  • 126
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Perhaps your Windows 10 image has a better driver selection than the Windows 7 install source you used.

Also, were all installs fully patched?

Update: The only real way to tell now would be to do a clean install from Windows 7 installation media (i.e. a DVD or USB), make sure its fully updated and run again. Otherwise perhaps be happy you now have better performance :)

gjpio
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