All about Interfaces
All about Interfaces
Well, I will start
blogging with a bundle of questions. All these questions are about interfaces.
How many interfaces does a pc have? USB, PCI, VGA, PCIE IDE, SATA…etc I don’t
know. If you know, please tell me. Moreover, if you know anything about PCIE or
SATA interface, do tell me. What is the bottleneck of a video card? And what is
the bottleneck of a HDD? Okay, if you know the answer, tell me again. I will
share my thoughts on these topics. And if I said something wrong, please
correct me. Thank you in advance again and again.
Here we go.
My answer will be “no”,
the interface is not the bottleneck of video card and HDD.
Let me start from PCIE.
I don’t know much about how video card work. But pcie 2.0 can throughout 16GB/s.
that is awesome. But the truth is the external interface is not a key factor of
a good video card. Even the PCI E 1.0 can perform very well in the games or
other applications. I have spent 3days to read about an article about the PCI E
2.0 in tom’s hardware.
So if you have the same interest like me, okay,
you can visit it here: http://www.tomshardware.com/reviews/pci-express-2-0,1915.html will you come to the same conclusion like me?
As for HDD, It is more interesting. The
internal transfer rate and the external transfer rate are totally different
things. Yes, most of HDDs have average internal read rates are no more than
100MB/s, so the SATA 2.0 can never be the bottleneck. But I have heard that
some RAID 0 disks can write data at an average rate of 567.9 MB/s.
http://www.cluboverclocker.com/reviews/hard_drives/SAS/seagate/cheetah15K.6_450gb/p4.asp
Wow, so the interface
must be a bottleneck of the HDD at that circumstance. But the truth is that Most
of the time, a HDD will never saturate a SATA 1 interface. But the new interfaces
do provide some possibilities. With its high speed transfer rate, we do benefit
in RAID or other applications. Moreover, if someday we develop a new tech to
speed up internal transfer rate of the HDD, the interface will be saturated or
overloaded. I hope this will happen in the future. : D it is better to provide
what we don’t need in advance as the old saying goes like “before it is too
late”. And we believe that we do use all
the bandwidth it can provide us if HDD will not be replaced by SSD in the
future. God bless HDD.
It really gives a
feeling that you are allowed to drive your car at the full speed in high way,
but the sad truth is that your car is a junk which can’t run that fast. So
drive your car slowly and enjoy your journey.
i need your input, so tell me what you think about it.