Compare boards
Up to four boards side by side: chip, logic, toolchains, interfaces and price.
| Attribute | Nexys A7 | Tang Nano 9K | Tang Nano 20K |
|---|---|---|---|
| FPGA | XC7A100T-1CSG324C | GW1NR-LV9QN88PC6/I5 | GW2AR-LV18QN88C8/I7 |
| Family | Artix-7 | GW1NR | GW2AR |
| Logic (LUTs) | not listed | 8640 | 20736 |
| Price | at the seller | 14.5 USD | 28.17 USD |
| Open toolchain | Project X-Ray / openXC7 | Project Apicula | Project Apicula |
| Toolchains | Vivado WebPACK / ML Standard | Gowin EDA, Yosys + nextpnr-gowin + Apicula | Gowin EDA, Yosys + nextpnr-gowin + Apicula |
| Interfaces | Ethernet, VGA, USB | HDMI, USB Type-C, Onboard JTAG, USB UART | HDMI, MAX98357A I2S amplifier path, TF card slot, USB Type-C, Onboard BL616 JTAG, USB UART |
| Memory | DDR2 requires verification from Digilent resource center | PSRAM 64 Mbit, Onboard flash 32 Mbit | 32-bit SDR SDRAM 64 Mbit, Onboard flash 64 Mbit |
| Level | Beginner | Beginner | Beginner |
| Where to get help | Digilent Forum | r/GowinFPGA | Sipeed forum, r/GowinFPGA |
| Known issues | — | Open-source flow is feature-dependent | Onboard debugger recognition; Flash persistence mode |