Napatech SmartNICs vs. Napatech Intel PAC

1. Napatech SmartNICs은 아래 Time Sync. 연결 방법을 지원한다. 
   Napatech Intel PAC의 경우 OS Time만 지원된다.
   
   [ Napatech SmartNICs ]
   Time Synchronization 
   • IEEE 1588-2008 PTP V2 
   • PPS 
   • OS time 
   [ Napatech Intel PAC ]
   • OS time 
   
   

2. Napatech Intel PAC의 경우 Multi-CPU Distribution에서 64개의 Rx Stream만을 지원하고  지원하고, Napatech SmartNICs의 경우 128개의 Rx Stream과 QPI Bypass, 4x10G Socket Load balancing 기능을 지원한다.
   
   [ Napatech SmartNICs ]
   Intelligent Multi-CPU Distribution
   • Configurable flow distribution over 128 Rx streams
   • QPI bypass for 2 x 100G performance solution
   • 4 x 10G socket load balancer
   [ Napatech Intel PAC ]
   Intelligent Multi-CPU Distribution
   • Configurable flow distribution over 64 Rx streams
   
   

3. In-Line 기능에 대해서는 Napatech SmartNICs만 지원한다. Napatech Intel PAC의 경우 Transmission기능이 지원되기는 하나 Host-based Transmission/Local Retransmission 기능만 지원한다.
   
   [ Napatech SmartNICs ] 
   In-Line Application Support 
   • Supports multi-core processing with up to 128 Rx/Tx streams per SmartNIC
   • Zero copy transfer from Rx to Tx 
   • Single bit flip to select packet discard or packet forward
   
   

4. Napatech Intel PAC의 경우 FPGA Temp. 및 software shutdown에 대한 monitoring만 지원된다.
   
   [ Napatech SmartNICs ]
   MONITORING SENSORS Sensors on the Napatech SmartNICs provide extensive monitoring of:
   • PCB temperature level with alarm
   • FPGA temperature level with alarm and automatic shutdown
   • Temperature of critical components
   • Individual optical port temperature or light level with alarm
   • Voltage or current overrange with alarm
   • Cooling fan speed with alarm
   • Ethernet link status per port
   • Status and loss of time synchronization
   [ Napatech Intel PAC ]
   Sensors on the Intel® PAC A10 GX provide monitoring of FPGA temperature level with alarm and software shutdown
   
   

5. Napatech SmartNICs은 1G, 10G and 40G and 100G port speeds 를 지원하지만, Napatech Intel PAC의 경우 10G and 40G port speeds만을 지원한다.