Is Core i7 3520M much faster than i7 620M ?

[ircfas133]

The older one is on T510. I'm thinking if I should migrate my work from the older machine to the new one with i7 3520M. But the thing is the old one has a nicer screen....

[wolfman]

Well, on a Passmark benchmark the 3520m scores 4449 (http://www.cpubenchmark.net/cpu.php?cpu ... 40+2.90GHz) vs. the 620m score of 2474 (http://www.cpubenchmark.net/cpu.php?cpu ... GHz&id=849).

That said, do you have an SSD in this computer? If not, I'd add an SSD first and I bet you'd be pleased with the performance difference. Also, the above performance differences look large, but in every day use (with an SSD) you might feel some difference, but I doubt it would feel like the 79% or so implied by the synthetic benchmark difference.

[ircfas133]

Well, on a Passmark benchmark the 3520m scores 4449 (http://www.cpubenchmark.net/cpu.php?cpu ... 40+2.90GHz) vs. the 620m score of 2474 (http://www.cpubenchmark.net/cpu.php?cpu ... GHz&id=849).

That said, do you have an SSD in this computer? If not, I'd add an SSD first and I bet you'd be pleased with the performance difference. Also, the above performance differences look large, but in every day use (with an SSD) you might feel some difference, but I doubt it would feel like the 79% or so implied by the synthetic benchmark difference.

Wow, thank you so much! That is quite a difference. The Windows Index for the old chip is 6.8, and 7.2 for the new one....

I do have two SSD installed on my old T510. But I can easily migrate them to my new T430s that comes with a HDD. I use the SAS software most often and most of the operations are simple disk I/O operations and some simple regressions.

Also is the SATA interface on T510 SATA III or older version? I installed a Samsung 830 series on the machine, but its speed hovers around 150 mb/s, not 300 mb/s as advertised... Thanks!