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Rule-of-Thumb
Rule-of-Thumb
Rule of thumb: CPU base clock speed x real cores = Processing power

ege.g. 1: Intel® Xeon® Gold 6226R Processor : 2.9GHz x 16 = 46.4GHz

ege.g. 2: Intel® Core™ Core i9-13900K Processor : 3.0GHz x 24 = 72GHz

ege.g. 2: Intel® Core™ Intel Core i7-13850HX Processor : 2.1GHz x 20 = 42GHz

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Faster is better! 64 cores @2GHz = 48 cores @2.6GHz Choose the higher base frequency and lower core count option.

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Format & Framerate: 8x HD 60i = 8x HD 30p = 4x HD 60p = 2x UHD 30p = 1x UHD 60p

You can use the table below to help you determine your CPU requirements based on the format/framerate and number of channels your require for your production.

Power Required per Codec per Ingest Channel (GHz)

Format

SD

1080

UHD

Frame rate

30p

60i/30p

60p

30p

60p

AVC- I

2.9

5.8

11.6

29

58

XAVC* - I (Talk to Sales)

2.9

5.8

11.6

46

92

DNxHD - all qualities

2.9

5.8

11.6

n/a

n/a

DNxHR - all qualities

2.9

5.8

11.6

23.2

46.4

ProRes - all qualities

2.9

5.8

11.6

23.2

46.4

XDCAM50

2.9

5.8

n/a

n/a

n/a

H.264** Quicksync/GPU

2.9

5.8

11.6

23.2

46.4

JPEG2000

3.9

7.7

15.5

30.9

61.9

DPX

5.8

11.6

n/a

n/a

n/a

IMX - D10 (SD only)

5.8

n/a

n/a

n/a

n/a

JFIF

5.8

n/a

n/a

n/a

n/a

Uncompressed

11.6

n/a

n/a

n/a

eg 1: Lets say you need to ingest 6 channels of 1080 60p to DNxHD: Therefore your would need 6 X 11.6 = 69.6GHz so based on the above rule of thumb a Core i9-13900K or a dual Xeon® Gold 6226R would be required.

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Below is a table giving samples of the number of channels different processors should be able to handle. If you would like to use a different processor you can use the the rule of thumb to determine your total GHz and the “Power Required per Codec per Ingest Channel (GHz)” table above to calculate your expected channel count.

Encode Channels per Processor for 1080 60p ProRes Encoding

Format

SD

1080

UHD

Frame rate

30p

60i/30p

60p

30p

60p

Processor

Processor GHz

Xeon® 6226R

46.4

8

8

4

2

1

i9-13900K

72.0

25

12

6

3

2

i7-13850HX

42.0

14

7

4

2

1

*XAVC processing:

XAVC encoding is intensive and requires additional hardware cards

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