S7t-VG6 Card
Feature
- QSFPs for 1x 400G or 6x 100G
- 8GB GDDR6 up to 512GB/s
- 7nm FPGA with 56Gbps SERDES
Overview
The S7t-VG6 offers a 7nm Achronix FPGA that is optimized for high-speed networking and fast, high-capacity memory access. Featuring a QSFP-DD (double-density) cage, the board supports up to 1x 400GbE or 4x 100GbE using the 56G PAM4-enabled Speedster®7t device. An additional QSFP port supports 2x 100GbE, and a 4x OCuLink connector supports NVMe attached storage. Sixteen channels of GDDR6 graphics DRAM handle high-bandwidth memory requirements, providing up to 512GB/s.
The FPGA offers large logic and memory resources—up to 692K 6-input lookup tables (LUTs), and 189 Mb embedded RAM. It also provides 2,560 MLPs (machine-learning blocks).
Board Specifications
FPGA
-
Achronix Speedster AC7t1500
- 52.5 x52.5 package
- 692K 6-input lookup tables (LUTs)
- 189 Mb embedded RAM
- 2,560 MLPs
On-board Memory
- 8x GDDR6: 8 Gbit per, 2 independent 16 bit channels per; 8 GBytes total
- One bank DDR4-2666 with ECC, up to 4 GBytes (x72)
- Flash memory for booting FPGA
Host interface
- PCIe Gen3 x16 interface direct to FPGA
External clocking
- 1 PPS and 10MHz ref clk front panel inputs
USB Micro
- USB access to BMC, USB-JTAG, USB-UART
OCuLink
- OCuLink on rear edge, connected to FPGA via 4x transceivers
- PCIe Gen4 Hard IP
GPIO
- 8 GPIO pins, 3.3V, single ended, direction (Tx, Rx) independently settable by FPGA per GPIO, buffers rated to 200Mbps
QSFP cages
- QSFP-DD cage on front panel
-
- 56G PAM4 transceivers
- 1x 400GbE, 2x 200GbE, 4x 100GbE or 8x 10/25/40/50GbE
- Hard MAC and FEC
-
QSFP56 cage on front panel
- 56G PAM4 transceivers
- 1x 200GbE, 2x 100GbE or 4x 10/25/40/50GbE
- Hard MAC and FEC
Board management controller
- Voltage, current, temperature monitoring
- Power sequencing and reset
- Field upgrades
- FPGA configuration and control
- Clock configuration
- I2C bus access
- USB 2.0
- Voltage overrides
Cooling
- Standard: dual-width passive heatsink
- Optional: dual-width active heatsink
- Optional: dual-width liquid cooling
Electrical
- On-board power from two AUX connectors (8 pin)
- Power dissipation is application dependent
- Typical max power consumption TBD
Environmental
- Operating temperature 5°C to 35°C
Form factor
- Standard-height PCIe dual-width board
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