Convert Terabits per second to Gigabytes per second
Convert Terabits per second (Tbit/s) to Gigabytes per second (GB/s) instantly and accurately.
Conversion Formula
GB/s = Tbit/s × 125
About Terabits per second
Terabit per second (Tbit/s) = 10¹² bit/s (SI). Internet backbone scale: MAREA cable (2017) = 200 Tbit/s per fibre pair; 2Africa cable (2024) = 180 Tbit/s. DWDM: 100 wavelengths × 800 Gbit/s = 80 Tbit/s per fibre. H100 GPU HBM3 memory bandwidth = 3.35 Tbit/s per GPU. NTT lab record (2023): 1,200 Tbit/s over a single fibre. 1 Tbit/s = 10¹² bit/s = 125 GB/s.
About Gigabytes per second
Gigabyte per second (GB/s) = 10⁹ B/s (SI). Dominant unit for memory bandwidth and GPU interconnects. DRAM: Intel i9-13900K DDR5 = 89.6 GB/s; AMD EPYC Genoa 8-channel = 460.8 GB/s. H100 HBM3 = 3,350 GB/s; RTX 4090 GDDR6X = 1,008 GB/s. PCIe 5.0 ×16 = 128 GB/s. HPC Lustre on Frontier ≈ 5,000 GB/s aggregate. 100 Gbit/s Ethernet = 12.5 GB/s. 1 GB/s = 10⁹ B/s = 8 Gbit/s.
Quick Reference Table
| Terabits per second (Tbit/s) | Gigabytes per second (GB/s) |
|---|---|
| 1 Tbit/s | 125 GB/s |
| 2 Tbit/s | 250 GB/s |
| 5 Tbit/s | 625 GB/s |
| 10 Tbit/s | 1250 GB/s |
| 25 Tbit/s | 3125 GB/s |
| 50 Tbit/s | 6250 GB/s |
| 100 Tbit/s | 12500 GB/s |