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Why a NVR's Bitrate is its Most Important Spec

Why many "1080P" NVRs aren't 1080P when you connect all the cameras

The two most common issues with IP camera systems are: 1. low processing-power NVRs that cannot handle full 1080p on every channel and 2. low processing-power cameras that have to send highly compressed video footage. This guide deals with the first problem.

Some lower quality NVRs are able to do a certain amount of channels in 1080p, maybe a few more if you use 720p, and then the rest need to be at D1 resolution. A common example is a 16 channel NVR that can do 4 1080p channels, 8 at 720P, or 16 at D1.

Take a look at this 8 channel NVR from Amazon:

Have you ever wondered what the [email protected], [email protected], [email protected] means?

When recording a camera in realtime, that camera take 30 pictures per second. 30 pictures a second is the standard for TV and movies; a lower framerate than 15 that will make video no longer seem fluid and more like a slideshow.

"Pictures per second" is often abbreviated as "FPS" (frames-per-second). When this NVR says it can do 240FPS at 1080P, that means that if you want 1080P recording, you can only connect 8 cameras to the NVR (8*30=240). However, [email protected] means that if you were to connect 32 cameras (32*30=960), you would only be able to record at D1 (standard old-school square TV quality).

This NVR was originally made by [company name removed at their request], and is a great example of a seller being responsible in describing the product. He calls it a "8 channel 1080P NVR" multiple times.

This is the exact same NVR:

Notice how this seller is being less than responsible. You can't record 32 cameras at 1080P, but he tries to hide that by saying "with 1080p realtime live view." This means that you can watch each camera live at 1080P, but not record it at 1080P. 32 cameras (960 total FPS) can only be recorder at D1 (standard old-school square TV quality).

What's most baffling is that this is actually the same seller. The first time he is responsible selling the product for what it is - an 8 channel 1080P NVR - and the second time he's being misleading about the number of channels you can do at 1080P while trying to charge you more - for the exact same device. Maybe he doesn't understand the unit; maybe he is being malicious. It isn't our place to say.

A Pervasive Problem

[company name removed at their request] is a billion dollar a year company and the second largest manufacturer of surveillance cameras, but most people haven't heard of them because they sell their product under different brand names in the US. Qsee™, ICRealtime™, GenIV™, eyeServ™, and many more are just [company name removed at their request] products. Many of their models can only do 1080P at 1 out of every 4 channels even though marketing calls them "1080P" NVRs, see this spec sheet, which shows that the DH-NVR3804 model can only do 1 camera at 1080P - even though it is marketed as a 4 channel "1080P" NVR, that the DH-NVR3808 model can only do 2 cameras at 1080P - even though it is marketed as a 8 channel "1080P" NVR, and that the DH-NVR3816 model can only do 4 cameras at 1080P - even though it is marketed as a 16 channel "1080P" NVR.

Additional documentation No. 1

Additional documentation No. 2

Why can an NVR record more cameras at a higher resolution and framerate, anyways?

How many cameras can be recorded by a NVR is not controlled by the number of camera connections that it has. It is controlled by the bitrate.

The reason these [company name removed at their request] units cannot record at 1080P when more cameras are connected is due to the NVR having a low overall bitrate (incoming bandwidth capacity) of the processor. An average 1080p camera will use about 5Mbps for 30FPS video, but many NVRs only allow about 2Mbps per camera. Unlike the rest of the industry, our NVRs are built with the latest processors and can do the full 5Mbps per camera. For example, our 16 channel Networker Pro NVR is rated at a total of 80Mb (5Mbps per camera * 16 cameras = 80Mbps), a lot of competitors are 32Mb and lower.

So, Here's a Table of the Bitrate You Would Need to Record in 1080P with 30 FPS

Number of Channels

4 8 16 32

Bitrate Needed for 1080P w/ sub-stream

20 Mbps 40 Mbps 80 Mbps 160 Mbps

Why does this matter?

720p is 1280 x 720. (921,600 total pixels)

1080p is 1920x1080. (2,073,600 total pixels)

So, a "1080P" unit that can only record at 720P when all the cameras are connect is recording less than half the resolution it promised.


D1 is 720 x 480. (345,600 total pixels)

A "1080P" unit that can only record at D1 when all the cameras are connect is recording a 16.6% of the resolution it promised.

How to Spot a Low Bitrate Rip Off

The Amazon™ example is a bit more complicated as the seller makes it seem like he is as telling you the bitrate ("Bit Rate" is listed in the specs), but the bit rate he lists (48~ 8192kbps) is not meaningful in any way and is not the total bitrate (48~ 8192kbps is the range for which you can set an individual camera, not the total available.)

Sellers may put really strange things like this in their specs sheets as a way to confuse you and make it more likely that they rip you off. KBs are 1000x smaller than MBs. If the specs for bit rate are listed as a variable or as KB or anything else that is not what is shown in the table above, it cannot do 1080P 30FPS on each camera.

How pervasive is this low-bitrate problem?

This competitor's NVR cannot do 1080P video on all of its channels at the same time.

This NVR is sold on nearly every one of our competitor's websites. It is originally manufactured by [company name removed at their request] it can be sold without the logo (or with a different logo), but the case should be similar. It can only record 1 out of every 4 of its channels at 1080P; the rest are at Standard Definition.

Here's a few more examples of other companies that do this sort of thing

Sample Footage from Our Networker Pro Series of NVRs

ip camera sample video play button

Our NVRs have True 1080P Quality on Every Channel

Most other providers offer NVRs that can't actually deliver 1080P video on every channel. Don’t waste your money on 1080p cameras and pair them with an NVR that can only take advantage of a quarter of them.

You may also be interested in our related guide on what happens when the processor in a camera is too slow.

11 Item(s)

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  1. The Vanguard 4 Channel NVR with SCWEasyConnect - - SKU: VG4P4



    The Vanguard 4 Channel NVR with SCWEasyConnect - - SKU: VG4P4

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $329.00


    Resolution


    This NVR can record 4 of our 1080P cameras at 30 FPS each or 4 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    40Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    1 hard drive bay
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB

    Learn about which of our NVRs can create create a second copy of your footage


    Viewing


    Online Viewing
    VGA Monitor Out
    HDMI Out for TVs
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    4 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network



  2. The Admiral Pro 16 Channel NVR - ADMP16P16

    The Admiral Pro 16 Channel NVR - ADMP16P16

    Preorder item
    This item is in production and will be availible in January of 2018.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $799.00


    Recording Resolutions


    16 of our 1080P cameras at 30 FPS each
    16 of our 4MP cameras at 25 FPS each

    160 Mbps incoming bitrate


    Software


    Event based Email Alerts
    Event Analytics: Motion Detection, Line Crossing, Face Detection, Intrusion Detection
    Event Analytics Search
    Remote Footage Download
    1 Click Firmware Update


    Remote Viewing


    Safari and Internet Explorer Viewing
    Smartphone Apps
    Tablet Apps
    Windows Apps
    Mac Viewing Apps


    Hardware


    4 hard drive bays
    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play 2018 SCW camera auto-configuration
    VGA Monitor Out
    4K HDMI Out for TVs/Monitors
    Footage Download via USB



  3. The Admiral 8 Channel NVR - ADM8P8

    The Admiral 8 Channel NVR - ADM8P8

    Preorder item
    This item is in production and will be availible in January of 2018.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $599.00


    Recording Resolutions


    8 of our 1080P cameras at 30 FPS each
    8 of our 4MP cameras at 25 FPS each

    80 Mbps incoming bitrate


    Software


    Event based Email Alerts
    Event Analytics: Motion Detection, Line Crossing, Face Detection, Intrusion Detection
    Event Analytics Search
    Remote Footage Download
    1 Click Firmware Update


    Remote Viewing


    Safari and Internet Explorer Viewing
    Smartphone Apps
    Tablet Apps
    Windows Apps
    Mac Viewing Apps


    Hardware


    2 hard drive bays
    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    4 SCWEasyConnect ports on back for Plug and play 2018 SCW camera auto-configuration
    VGA Monitor Out
    4K HDMI Out for TVs/Monitors
    Footage Download via USB



  4. The Admiral 4 Channel NVR - ADM4P4

    The Admiral 4 Channel NVR - ADM4P4

    Preorder item
    This item is in production and will be availible in January of 2018.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $349.00


    Recording Resolutions


    4 of our 1080P cameras at 30 FPS each
    4 of our 4MP cameras at 25 FPS each

    40 Mbps incoming bitrate


    Software


    Event based Email Alerts
    Event Analytics: Motion Detection, Line Crossing, Face Detection, Intrusion Detection
    Event Analytics Search
    Remote Footage Download
    1 Click Firmware Update


    Remote Viewing


    Safari and Internet Explorer Viewing
    Smartphone Apps
    Tablet Apps
    Windows Apps
    Mac Viewing Apps


    Hardware


    1 hard drive bay
    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    4 SCWEasyConnect ports on back for Plug and play 2018 SCW camera auto-configuration
    VGA Monitor Out
    4K HDMI Out for TVs/Monitors
    Footage Download via USB



  5. The Edge 20 Channel 4K NVR - SKU: ED20

    The Edge 20 Channel 4K NVR - SKU: ED20

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $2,865.00


    Resolution


    This NVR can record 20 of our 4K cameras at 22 FPS each

    320 Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    8 hard drive bays
    Rack Mountable (ears included)
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS or eSata

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    Dual VGA Monitor Out (up to 1080P)
    Dual HDMI Out for TVs (up to 4K)
    4K and 12MP Camera Capable
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network
    Alarm inputs / outputs



  6. Front of EXEC128

    The Executive 128 Channel NVR - SKU: EXEC128

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $9,999.00


    Resolution


    This NVR can record 128 of our 1080P cameras at 30 FPS each or 106 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    640 Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    24 hard drive bays
    Rack Mountable (ears included)
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS or eSata

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    Dual VGA Monitor Out (up to 1080P)
    Dual HDMI Out for TVs (up to 4K)
    4K and 12MP Camera Capable
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    4x Cat5e (RJ45) Ethernet to Network
    Dual, Redundant Standard 3-Prong Wall Plug
    Cameras can connect via Cat5e to a POE Switch anywhere on your Network
    Alarm inputs / outputs



  7. The Vanguard Pro 32 Channel NVR with 16 SCWEasyConnect POE Ports - SKU: VGP32P16

    The Vanguard Pro 32 Channel NVR with 16 SCWEasyConnect POE Ports - SKU: VGP32P16

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $1,499.00


    Resolution


    This NVR can record 32 of our 1080P cameras at 30 FPS each or 32 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    256 Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    4 hard drive bays
    Rack Mountable (ears included)
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    VGA Monitor Out (up to 1080P)
    HDMI Out for TVs (up to 4K)
    4K and 12MP Camera Capable
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network
    Alarm inputs / outputs



  8. The Vanguard Pro 16 Channel NVR with SCWEasyConnect - SKU: VGP16P16

    The Vanguard Pro 16 Channel NVR with SCWEasyConnect - SKU: VGP16P16

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $799.00


    Resolution


    This NVR can record 16 of our 1080P cameras at 30 FPS each or 16 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    160Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    4 hard drive bays
    Rack Mountable (ears included)
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    VGA Monitor Out (up to 1080P)
    HDMI Out for TVs (up to 4K)
    4K and 12MP Camera Capable
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network
    Alarm inputs / outputs



  9. The Vanguard 8 Channel NVR with SCWEasyConnect - - SKU: VG8P8



    The Vanguard 16 Channel NVR with SCWEasyConnect - - SKU: VG16P16

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $699.00


    Resolution


    This NVR can record 16 of our 1080P cameras at 30 FPS each or 16 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    160Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    2 hard drive bays
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    VGA Monitor Out
    HDMI Out for TVs
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network



  10. The Vanguard 8 Channel NVR with SCWEasyConnect - - SKU: VG8P8



    The Vanguard 8 Channel NVR with SCWEasyConnect - - SKU: VG8P8

    In stock.
    Usually ships the same business day if ordered before 2PM EST.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $599.00


    Resolution


    This NVR can record 8 of our 1080P cameras at 30 FPS each or 8 of our 4MP cameras at 20 FPS each
    How to avoid being ripped off by fake "1080P" NVRs

    80Mbps of total incoming bitrate
    What can I do with Spare Bitrate?


    Features


    2 hard drive bays
    Motion Alert Emails
    Motion Detection Recording
    IntelliPro Ready
    Remote Footage Download
    Footage Download via USB
    Easy Backup to NAS

    Learn about how this NVR can create create a second copy of your footage


    Viewing


    Online Viewing
    VGA Monitor Out
    HDMI Out for TVs
    Smartphone Apps
    Tablet Apps
    Windows Viewing + Apps
    Mac Viewing + Apps


    Connections


    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    8 SCWEasyConnect ports on back for Plug and play SCW camera auto-configuration
    Cameras can also connect via Cat5e to a POE Switch anywhere on your Network



  11. The Admiral Pro 32 Channel NVR - ADMP32P16

    The Admiral Pro 32 Channel NVR - ADMP32P16

    Preorder item
    This item is in production and will be availible in January of 2018.

    ***Please note, this price does not include hard drives. Please click Add to Cart to select your Hard Drive options and view the configured price.

    $1,499.00


    Recording Resolutions


    32 of our 1080P cameras at 30 FPS each
    32 of our 4MP cameras at 25 FPS each

    320 Mbps incoming bitrate


    Software


    Event based Email Alerts
    Event Analytics: Motion Detection, Line Crossing, Face Detection, Intrusion Detection
    Event Analytics Search
    Remote Footage Download
    1 Click Firmware Update


    Remote Viewing


    Safari and Internet Explorer Viewing
    Smartphone Apps
    Tablet Apps
    Windows Apps
    Mac Viewing Apps


    Hardware


    4 hard drive bays
    Cat5e (RJ45) Ethernet to Network
    Standard 3-Prong Wall Plug
    16 SCWEasyConnect ports on back for Plug and play 2018 SCW camera auto-configuration
    VGA Monitor Out
    4K HDMI Out for TVs/Monitors
    Footage Download via USB


11 Item(s)

per page

Set Descending Direction

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