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#16
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32 or 64 bits with old CPU
Antoine8 wrote:
Hello My computer is old. The CPU is AMD Sempron 145 (64 bits, but only 1 core) It is used with Windows 10 32 bits. Is it useful to switch to Windows 10 64 bits with such an old CPU ? Will i get an improvement in performance or the opposite ? I finally found a comparison of 32-bit versus 64-bit for a single program - Firefox. And the 32-bit version has the edge, which is strange. This would be an example of one tool you might use on a daily basis (although a lot of people use Chrome of course). https://www.raymond.cc/blog/mozilla-...ared-to-32bit/ That article was first written in 2012, and has been updated for various releases of Firefox. The current web page reflects Firefox 42 32-bit versus 64-bit. Now, what that result reflects, is when code is not specifically optimized for 64-bit, and the code has a lot of small counters and branch constructs. The 64-bit version does not have to run faster in all cases. The Quantum browser version (57?) could be quite different, because they put a lot of effort into trying to improve the performance, and eventually, they'll go 64-bit only. Paul |
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#17
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32 or 64 bits with old CPU
Paul wrote:
Antoine8 wrote: Hello My computer is old. The CPU is AMD Sempron 145 (64 bits, but only 1 core) It is used with Windows 10 32 bits. Is it useful to switch to Windows 10 64 bits with such an old CPU ? Will i get an improvement in performance or the opposite ? I finally found a comparison of 32-bit versus 64-bit for a single program - Firefox. And the 32-bit version has the edge, which is strange. This would be an example of one tool you might use on a daily basis (although a lot of people use Chrome of course). https://www.raymond.cc/blog/mozilla-...ared-to-32bit/ That article was first written in 2012, and has been updated for various releases of Firefox. The current web page reflects Firefox 42 32-bit versus 64-bit. RaymondCC Jetstream Firefox 42 32-bit 104.45 (Phenom II 3.2GHz X4 955 CPU) Firefox 42 64-bit 105.74 (Phenom II 3.2GHz X4 955 CPU) ******* So I ran that benchmark on my single core AMD 2.2GHz laptop. I used a 64-bit OS, to compare 32-bit and 64-bit program runs. The 32-bit program run on the 32-bit OS would run at the same speed as the 32-bit program on a 64-bit OS. So running these on the 64-bit OS is sufficient to compare them. I ran a set of tests, rebooted, and reversed the run order. The cache was not cleared between runs, which means the very first run could have been slower if the files hadn't been in the cache already. And it looks like the benchmark has properly handled when to time the benchmark so that doesn't happen. The same profile folder is used for both copies of Firefox, and the browser has only seen the benchmark site when it runs the benchmark, and not any other sites. Firefox 57.0.2 32-bit 39.876 39.763 64-bit 42.408 42.987 reboot 64-bit 41.284 41.691 32-bit 40.828 40.495 At least for that benchmark result, with Quantum, you wouldn't be able to tell the difference. And they were even closer in Firefox 42. It's pretty hard to guarantee the OS CPU activity won't screw up the benchmark results, and if I was serious about doing a bench like this, I'd have to switch to WinXP or something :-) Win10 is no good for benchmark work. No good at all. A number of times now, I've had maintenance activity start up, right in the middle of a benchmark run. A Windows Defender update came in, just before I rebooted for the above test. I had to wait until things settled down, before running the second test set. When the results are that close, there's no reason to get excited. Paul |
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