memory

opera browser should use less memory problably less then chrome or somewhere around there

Here is a quickly done and rather unscientific experiment:

I currently have Opera open with over 50 tabs on various sites. Opera is currently using 1.2GB of memory (I have 5GB, so that isn't a big deal) after being open for a while, though it usually runs at about 700-800MB on startup with the same tabs.

I just opened 50 tabs in Chrome and sent each one to google.com (not a particularly content-heavy site). I now have 45 instances of chrome.exe running, each using 14.5-15MB, except for the first instance at 60MB. Now, assuming Process Explorer isn't lying to me, that's private memory, so none of that memory is shared between the instances. 44* 15 + 60 = 720MB. That's comparable to Opera's startup memory, except that the majority of the sites I have open are more complex that google.com. After opening a few of the sites I normally have up in Opera in Chrome, I can see the memory usage of each process increase to 20+MB (35 for a complex site like cnet.com, around 25 for arstechnica.com, and 250MB for, uhh, well I actually have no idea where that one came from). If I use a conservative estimate of 30MB per process over 45 processes, I get 45 * 30 = 1.35GB.

After tallying up my current memory usage with 6 tabs at a comic reader site, 15 at arstechnica.com, one at cnet.com, one at these forums, and the rest of 50 at google.com, I get 1.07GB, so that seems like a pretty good estimate to me. Chrome may be memory efficient for a single tab, but it isn't so much when you have a lot of tabs.

Originally posted by aldres1st:

opera browser should use less memory problably less then chrome or somewhere around there

It already does. You need to educate yourself about memory usage.