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How much RT performance on Kona 3

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chance norris
How much RT performance on Kona 3
on Nov 21, 2008 at 6:29:49 pm

How much realtime performance would I see on a Mac 8 core, 9 gigs of ram ,7300gt graphics card and video raid with FCP in a file based format p2 (ProRes 422)?

Would there be any benifits adding this card just to speed up editing process with more unlimited RT and monitor out?

Does FCP unload some of the RT to the video card?

Any insight would be great?


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Jerry Hofmann
Re: How much RT performance on Kona 3
on Nov 26, 2008 at 11:55:42 pm

From AJA's web site:

KONA 3 Hardware Acceleration

Final Cut Pro users will love our DVCPROHD, HDV and Apple Dynamic RT Extreme hardware acceleration, developed in close cooperation with Apple and available exclusively on high-end KONA cards. KONA 3 hardware takes a portion of the codec processing load off the CPU, allowing more RealTime (RT) effects in Final Cut Pro when outputting. KONA 3 also has hardware support when capturing. This brings amazing RealTime HD production power to the desktop. With KONA 3, any source can be captured using the DVCPROHD codec — giving you online HD quality at remarkably low data rates, allowing the internal Mac Pro SATA storage to be used for HD capture, playback and RT effects. Of course, you’ll obtain still better performance and more RT when using a fast SCSI or Fibre array, but this feature allows HD to be used where only SD would have been considered because of budget or time constraints. KONA 3 even supports the DVCPROHD and HDV codecs with up- or downconversion — allowing projects to be downconverted to SD, or even upconverted for DVCPROHD capture.

How Does KONA Accelerate DVCPROHD, HDV & Apple's Dynamic RT?

Because KONA’s precision hardware does part of the work, the Mac Pro or G5 has more time available to process RT effects. This means more RT-effects power, and more RT streams. Most broadcast codecs, including DVCPROHD and HDV, use a two-step process. First, the video is scaled to a lower horizontal pixel count, and then the video is compressed. This is done because the slightly scaled video results in a favorable trade-off between resolution and codec efficiency. KONA 3’s hardware not only dramatically speeds up the scaling part of the job, but it’s also done with full 10-bit broadcast quality.

When using the Final Cut Pro HDV codec, the KONA 3 hardware acceleration allows instantaneous real-time playback for both monitoring and recording. Even KONA’s downconverter works in real-time with HDV, allowing SD monitoring, dubs or mastering. This KONA 3 functionality makes HDV a fully professional solution.

The Panasonic DVCPROHD format takes advantage of KONA hardware as well. KONA’s precision hardware allows capture and playback of HD-SDI video to and from the DVCPROHD codec at a quality level virtually indistinguishable from native FireWire, while freeing up valuable RT processing power.

For Final Cut Pro 5’s Dynamic RT feature, KONA’s hardware is used to offload the video scaling as the “playback video quality” dynamically adjusts. This allows more playback power — and because KONA handles it seamlessly, the Dynamic RT you see on the Mac monitor is the same as that shown on your professional broadcast monitor.

All of this adds up to the most reliable, feature-rich and highest-performance card available for OS X and Final Cut Pro. KONA 3 represents the next generation of technology.


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8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17" MBP, Matrox MXO, CD's

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