Finding official, modern drivers for the RTL8139 family on Windows 10 can be challenging because the hardware is considered legacy.
| Test | Driver 10.55 | Driver 10.68 | |------|--------------|--------------| | TCP throughput (1 GbE iperf3) | 941 Mbps | 944 Mbps | | CPU utilization (iperf3, 60 sec) | 8.2% | 7.1% | | Latency (ping to gateway, avg) | 0.32 ms | 0.29 ms | | Wake-on-LAN (S3 sleep → wake) | 2.1 sec | 1.9 sec | | Jumbo frame 9000B (NAS copy) | 112 MB/s | 113 MB/s | realtek rtl8139 driver 810x family pci-e gigabit windows 10