Saturday, November 21, 2009

USB 3.0 vs USB 2.0 read write Review & Benchmarks speed Test

Hello again guys, hello performance lovers and welcome to this new "All in one Review", on this post I want to share with you some valuable information comparing the all new USB 3.0 standard Vs the previous generation USB 2.0 in term of performance, of course the new USB 3.0 is faster but do you have any idea how much its faster ?
 
Lets have a small briefing, features and specifications about the new generation of USB, Then some selection of best reviewers.




The USB 3.0:
On September 18, 2007, Pat Gelsinger demonstrated USB 3.0 at the Intel Developer Forum. The USB 3.0 Promoter Group announced on November 17, 2008, that version 3.0 of the specification had been completed and was transitioned to the USB Implementers Forum (USB-IF), the managing body of USB specifications. This move effectively opened the spec to hardware developers for implementation in future products. The first USB 3.0 ports were featured on the Asus P6X58 motherboard; however this board was canceled before production.
Features:
* A new major feature is the SuperSpeed bus, which provides a fourth transfer mode at 4.8 Gbit/s. The raw throughput is 4 Gbit/s, and the specification considers it reasonable to achieve 3.2 Gbit/s (0.4 GByte/s or 400 MByte/s) or more after protocol overhead.

Features comparison table:



The USB 3.0 Logo

Benchmark selection

USB 3.0 vs USB 2.0 Super Talent Benchmarks Test :

MacBook USB performance:
On the new Retina MacBook pro USB 3.0Vs the old 2011 MacBook pro USB2.0, performance diference is huge (by anandtech).


USB 2.0 Vs USB 3.0 ATTO Benchmark result :
Using ASUS TUF X58 SABERTOOTH motherboard and 7,200 RPM internal drive, (by bjorn3d)


Why USB 3.0 is only around 150MB/s speed:
Because of the CRC check on the two ends, the final performance result of the USB 3.0 is not as we expect, take look at the Theoretical table bellow:

InterfaceData Rate (Bits/s)Theoretical Bandwidth (Bytes/s)Theoretical Bandwidth After 8b/10b Encoding (Bytes/s)
USB 2.0480Mb/s60MB/s48MB/s
USB 3.05Gb/s625MB/s500MB/s

2 comments:

Subscribe

Enter your email address and subscribe to the latest News/Articles :

Delivered by FeedBurner

 
web stats