• From: Melbourne : Australia
  • Registered: 2007-06-17
  • Posts: 46

Topic: Fireface and Window7 x64 - Better performance on legacy or native

Hey All,

Just out of interest I was wondering what the consensus was in regards to whether you are getting better performance using the legacy or native firewire driver in Windows 7. I have been finalising some audio notebook qualifying and testing lately, and found the legacy to give clearly better performance at low latency on the specific notebook.

I'll be interested to hear others experience

Cheers

Vin Curigliano
AAVIM Technology

Vin Curgiliano
AAVIM Technology
DAWbench.com

TAFKAT's Website

2 Reply by MC

  • MC
  • MC
  • Administrator
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  • From: Germany/Thailand
  • Registered: 2007-04-06
  • Posts: 24,844

Re: Fireface and Window7 x64 - Better performance on legacy or native

We see the same at this time. For many users the difference might be small, but it is there.

Regards
Matthias Carstens
RME

MC's Website

3 Reply by TAFKAT (edited by TAFKAT 2010-03-26 21:48:15)

  • From: Melbourne : Australia
  • Registered: 2007-06-17
  • Posts: 46

Re: Fireface and Window7 x64 - Better performance on legacy or native

Hey M.C,

Thanks for the reply,

The difference isn't huge but still quantifiable.

----------------------------------------------------

DAWbench DSP RXC :

Cubase 5.1.2

Core i7 620 2.66 GHZ:

4GB PC10600 DDR 3

Windows 7 x64 Pro

FF800 - 2.9992 - Native FW Mode

048  : 39 RXC - Aero : 048 RXC - Basic : I/O - 2.109/3.265

All further results are with Basic Mode :

064 : 54 RXC : I/O - 2.472/3.628

128 : 59 RXC : I/O - 3.923/5.079

256 : 64 RXC : I/O - 6.825/7.982

--------------------------------------------------------------

DAWbench DSP RXC :

Cubase 5.1.2

Core i7 620 2.66 GHZ:

4GB PC10600 DDR 3

Windows 7 x64 Pro

FF800 - 2.9992 - Legacy FW driver mode:

048 : 56 RXC : I/O - 2.109/3.265

064 : 58 RXC : I/O - 2.472/3.628

128 : 64 RXC : I/O - 3.923/5.079

256 : 68 RXC : I/O - 6.825/7.982

* I/O is the reported latency in Cubendo for each respective buffer size.

V:

Vin Curgiliano
AAVIM Technology
DAWbench.com

TAFKAT's Website

4 Reply by MC

  • MC
  • MC
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  • From: Germany/Thailand
  • Registered: 2007-04-06
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Re: Fireface and Window7 x64 - Better performance on legacy or native

Using the DPC Latency Tool you will also note that the constant load is a bit higher. Example: I see 250?s under Legacy, about 500?s under MS-FW on my (fryingpan) Dell notebook. Again it's not a big difference, but there is one.

Regards
Matthias Carstens
RME

MC's Website