At the most basic level, each physical link through the NoC is limited by the raw possible bandwidth of
a physical link, ignoring packetization overheads. Read responses have no packet header
overheads and can achieve this bandwidth. Write requests have a header flit and so need
some derating.
The following table shows the maximum operating frequency of the
NoC packet transport for each
AMD Versal™
speed grade.
Table 1.
NoC Clock
Frequency per Speed Grade
| Speed Grade |
-1LP |
-1MP |
-2LP |
-2MP |
-2HP |
-3HP |
|
NoC
Frequency (MHz) |
960 |
960 |
1000 |
1000 |
1080 |
1080 |
The following table shows the physical link bandwidth before any
packetization overheads are considered.
Table 2. Raw Link Physical Bandwidth
|
NoC
Clock Frequency MHz |
Read BW GBytes/sec 256 Byte Transfer |
Write BW GBytes/sec 256 Byte Transfer |
Read BW GBytes/sec 64 Byte Transfer |
Write BW GBytes/sec 64 Byte Transfer |
| 960 |
15.36 |
14.46 |
15.36 |
12.29 |
| 1000 |
16.0 |
15.06 |
16.0 |
12.8 |
| 1080 |
17.28 |
16.26 |
17.28 |
13.82 |