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Old March 1st, 2009, 12:52 AM   #1
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64-bit performance increase

Hi David. I am going to upgrade my current Intensity capture station. I can capture 1080/60i at High quality with a stripped version of 32-bit XP with no dropouts. Memory is 800 MT/s DDR2 and CPU is 2.2 GHz Core 2 Duo w/ 4MB cache (Core 2 Duo T7200 overclocked to 2.2 GHz).

I am considering the Core 2 Duo SL9400 SLB65 1866 MHz 6 MB 1066 MT/s for the upgrade. I will run XP 64-bit, this has SSE 4.1 and 1066 MT/s memory support.

With the memory there will be throughput increase of 25% (800 to 1066), not sure how much improvement SSE 4.1 gives. I have no idea how much of an improvement is given by 32-bit vs 64-bit in Cineform. Blackmagic does seem to have 64-bit XP drivers on its website so that should be fine..

Would appreciate your input, as this will improve my battery life by about 20%.(9W CPU improvement takes 50W to 41W as motherboard draw).
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Old March 1st, 2009, 10:41 AM   #2
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The memory speed is where you get for most performance gain for CineForm encoding. Very little difference using 64-bit.
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Old March 1st, 2009, 11:40 AM   #3
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Sse 4.1

OK so there will 10-20% improvement with the improved memory speed. I don't think the Socket M Core 2 Duos had SSE 4.1
What is the improvement between the newer Penryn and the older Merom CPUs ??

I have to buy these to test it - so I am just trying to avoid an unnecessary hassle by asking you these questions..
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Old March 1st, 2009, 11:49 AM   #4
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I don't know the individual CPU models that well, there are just too many, so you might have to try. We don't do any particular SSE4.1 optimizition.
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Old March 3rd, 2009, 12:48 PM   #5
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I think you're going to have issues with realtime CineForm capture at 1.8GHz regardless of the bus speed and memory throughput.
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Old March 5th, 2009, 07:36 PM   #6
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64-bit Vegas and Neo HD

Hi David. At this moment, can we use a 64-bit workflow with Vegas (any version ??) and Cineform 64-bit ?

Richard, I was able to capture with a 2 GHz CPU using Neo HD - I overclocked it to 2.2 GHz to be sure. This was about 800 MHz FSB and using Film Scan.

With 1033 MHz FSB, there will be a performance increase and if I use High Quality. If I use the 17W TDP CPUs and overclock them to 2GHz - I think even Film Scan may be fine.

64-bit will still give more performance increase - just not sure how much. I will test and let everyone know.
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Old March 5th, 2009, 09:04 PM   #7
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We have no 64-bit components yet.
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