There's a whole section about it in the linked post…
> This Orange Pi 5 uses the same Rockchip RK3588—well, almost the same. The Orange Pi has the RK3588S, which has a little less bandwidth than the chip in the Rock 5. It has a lone M.2 slot on the bottom running at PCIe Gen 2 speeds, which means this SSD only gets about 400 MB/sec—just as slow as on a Pi. The Orange Pi 5 also only has 1 Gbps Ethernet, and not even a full 40-pin GPIO header, but it does have a full size microSD card slot, so that's an upgrade! But the Orange Pi 5 is a lot less expensive. You can get the same CPU and GPU performance, at least—and in my case it actually benchmarked a tiny bit faster—for half the price!
> This Orange Pi 5 uses the same Rockchip RK3588—well, almost the same. The Orange Pi has the RK3588S, which has a little less bandwidth than the chip in the Rock 5. It has a lone M.2 slot on the bottom running at PCIe Gen 2 speeds, which means this SSD only gets about 400 MB/sec—just as slow as on a Pi. The Orange Pi 5 also only has 1 Gbps Ethernet, and not even a full 40-pin GPIO header, but it does have a full size microSD card slot, so that's an upgrade! But the Orange Pi 5 is a lot less expensive. You can get the same CPU and GPU performance, at least—and in my case it actually benchmarked a tiny bit faster—for half the price!